monohulls and catamarans

Marine Supplies
Maintenance & Boating Guides

Catamaran vs Monohull: Pros, Cons & Main Differences

By: B.J. Porter Editor

The choice of catamaran vs monohull ultimately comes down to preference. What’s critical for one buyer may mean little to another. If your partner refuses to set foot on a boat which heels, that’s a deal-breaker for a monohull. But if you’re passionate about classic looks and styling, your quest for beauty may override other considerations and rule out catamarans.

We can’t tell you whether a catamaran or a monohull is right for you. But we can help you with the pros and cons of each for your search.

The Strengths and Pros

No matter your choice of monohull or catamaran, there are safe, comfortable, and excellent sailing boats of both types. Neither has an exclusive lock on any strength, and both sail safely and comfortably. But there’s a different emphasis on how they do it. No matter what you are trying to do – sail fast, cruise the world, or just host a crowd at the dock, there are monohulls and catamarans that can work for any requirement.

Catamaran advantages

Space and comfort: Two hulls and a wide beam make a very stable platform with lots of volume in the saloon and cockpit. Most living space is above the waterline, with wonderful light and airflow. Cabins in the hulls offer better privacy and isolation, usually with standing headroom.

Straight line speed: Most catamarans are faster in straight-line sailing speed (1) that similar sized or even longer monohulls. Without a lead keel, they’re lighter, so more driving force from the sails converts to speed, and narrower hull forms may have less drag than wide hulls with deep keels. Some heavier cruising catamarans may not be faster, especially if they keep rig size small for ease of handling.

Stability : The beam of two hulls with a bridge deck leads to much higher stability and resistance to roll (2). Waves in an anchorage that induce violent roll in a monohull may make a catamaran bounce or bob. Under sail, catamarans do not heel appreciably even when powered up.

Twin engines. : With one engine in forward and balanced in reverse, most catamarans can spin in a circle in place and make sharp adjustments to the boat’s direction. If you have an engine failure, you also have a second engine, giving a safety edge when you can’t sail.

Monohull advantages

Upwind sailing performance: While catamarans have the edge at straight-line speed, monohulls sail closer to the wind. When you’re racing or you have to sail upwind to get to the next island, this can get you there faster.

Sailing feel and responsiveness : The “feel” of sailing a monohull is much better. With a single hull, you’ll feel wind pressure and trim adjustments immediately for a more responsive helm and a better ability to sail to the wind.

Maneuvering under sail: Monohulls are quite nimble tacking and turning under sail, and there’s less risk of slow or missed tacks.

Righting Moment: The primary offshore safety argument for monohulls is their ability to right when capsized. The heavy keel keeps the boat deck up when sailing, and most monohulls will come back upright even after a complete capsize.

Cargo and Loading: A higher displacement boat with thousands of pounds of lead hung from the bottom isn’t going to be as affected by loading as a relatively light multihull.

Aesthetics: This is subjective, as many catamaran enthusiasts love how they look. Classic sailboat styling, with swept sleek looks, springy sheer lines, and all the “right” proportions are more common on monohulls.

Also read: The 5 Best Electric Anchor Winches

Weaknesses and Cons

Like strengths, weaknesses are relative; just because one class has a strength doesn’t mean the other doesn’t. There are spacious monohulls and beautiful catamarans, just like there are cramped catamarans and unattractive monohulls. The differences have to be highlighted relative to each other, and the weaknesses of one are most apparent compared to the strengths of the other.

Catamaran Cons

Upwind performance: Cats don’t sail as close to the wind, but they make up for it by sailing faster off the wind. You’ll sail a less direct course upwind. Even if you get in at the same time, you’ll have to sail farther.

Less responsive sailing: Two hulls with two rudders and a very broad platform reduce the helm feel when sailing, cutting responsiveness sailing in shifting wind and wave conditions. It also makes tacking slower.

No-flip zone: It is very difficult, but not impossible, to flip a large catamaran (3). But if a catamaran capsizes, it will not flip back over by itself.

Large in marina/close quarters: You have two problems in marinas. Beamy cats are tough to maneuver in tight spaces because they’re big and visibility is tough over the hulls. And many marinas charge extra because the wide beam extends into the next slip. The good news is that twin engines make tight maneuvering easier.

Price point: Catamarans are more difficult to build and need more materials. This is directly reflected in the cost of the boats.

Monohull Cons

They are heavier: Every large monohull needs a keel for stability (4). They can not sail or stay upright without thousands of pounds of ballast, and this makes them heavier and slows them down. Tiny monohulls can use a centerboard or daggerboard for stability, but most boats big enough to sleep on need ballast.

Darker interiors : Most monohull living space is lower in the boat, where you can’t put enormous windows for light and circulation. It’s very hard to get space as bright and airy as catamaran saloons.

Less living space: With one hull and no bridge deck saloon, most monohulls feel cramped compared to spacious catamarans.

More prone to rolling motions : Only one hull makes monohulls susceptible to rolling in waves, and the movement can be quite uncomfortable.

Heeling: Tipping is just part of sailing monohulls upwind and is unavoidable. It can be reduced on some other points of sail, but not eliminated. Many people, especially non-sailors and new sailors, find this movement uncomfortable or distressing.

You might also be interested in: How to Buff a Boat | A Detailed Guide by a Boating Expert

A pontoon boat on water with an open battery compartment

Troubleshooting Pontoon Boat Battery

Pontoon boats are a great way to enjoy the water and spend quality time with family and friends. But just like any other boat, they rely on a battery to power various systems, including navigation lights, trolling motors, and other…

Boat Accessories

Best Ice Fishing Fish Finders in 2023

In search of the best ice fishing fish finders in 2023? Not all fish finders are created equal, particularly when it comes to ice fishing. Specialized features are crucial to ensure successful outings in harsh winter conditions. You require a…

Best Side Imaging Fish Finders in 2023

Navigating the world of angling equipment can be challenging. That's especially true when it comes to side imaging fish finders, given the extensive range of options available in 2023. This post makes it easy for you to narrow down your…

How to Choose a Fishfinder for Your Boat: A Comprehensive Guide

Today, we embark on a journey to unravel the secrets of choosing the perfect fish finder for your boat. As we navigate through an ocean of options, we'll explore different types of fish finders, delve into their key features, and…

Accessories

5 Best Portable Fish Finder in 2023

Looking for a portable fish finder for kayaking, ice fishing, or other activities? The good news is that there are a lot of solid products out there. The year 2023 has ushered in an array of advanced models, each brimming…

Charging Your Trolling Motor Battery with a Solar Panel

Charging your trolling motor battery with a solar panel is not just the right thing to do for the environment, it is extremely convenient. When you’re out on the boat, with any luck, you’ll have access to a good amount…

Don't miss out

Monohulls vs. Catamarans: Which One is Best for You?

If you’re considering purchasing a sailboat, you might be wondering which type of vessel is best suited for your seafaring adventures. Fear not, for we’re here to help you weigh the differences between monohulls vs. catamarans to make an informed decision.

Now, before we dive into the nitty-gritty details of hull design, sail handling, and the like, let’s take a moment to appreciate the quirky personalities of these two boats. Sloop rigged monohulls are the classic, old-school sailboats with a single mast and a triangular sail. They’re like the wise old grandpa who’s been sailing the seas for decades and has plenty of stories to tell. On the other hand, catamarans are the younger, hipper cousins of the boating world. With their twin hulls and sleek designs, they’re like the trendy millennials who are always up for an adventure.

But enough with the stereotypes, let’s get down to business. In this article, we’ll explore the pros and cons of monohulls and catamarans across various factors such as stability, maneuverability, accommodations, and cost. By the end of it, you’ll have a better idea of which boat is best suited for your sailing style and preferences. So, hoist the anchor and let’s set sail!

What are classic monohulls?

Let’s start with the basics – what exactly are classic monohulls? Well, sloops. To put it simply, a sloop is a type of sailboat with a single mast and a fore-and-aft rigged mainsail. But there’s more to these boats than meets the eye.

Sloops are the OGs of the sailing world, tracing their roots back to the 17th century. They were the go-to boats for explorers, pirates, and adventurers alike, with their simple yet effective design making them perfect for long journeys at sea. Nowadays, they’re still a popular choice for sailing enthusiasts who appreciate the classic, traditional look and feel of a sloop.

One of the defining characteristics of a sloop is its versatility. They come in a range of sizes, from small day sailers to larger offshore cruisers, and can be easily handled by a single sailor. Their rigging is relatively simple, making them a great option for beginners or those who prefer a less complicated sailing experience. But don’t let their simplicity fool you – sloops can pack a punch when it comes to speed and performance upwind.

Of course, there are some downsides to monohulls as well. Due to their single-hull design, they can be less stable in high winds or rough seas. They also tend to have less living space below deck compared to their bigger brothers. But if you’re looking for a classic, reliable, and versatile sailboat, a monohull might just be the vessel for you.

What are catamarans?

Now let’s talk about the other contender in this seafaring showdown – catamarans. These boats are a bit like the cool kids in high school – they’re sleek, modern, and always turning heads.

So, what exactly are catamarans? Well, to put it simply, they’re boats with twin hulls that are connected by a platform. But don’t let their basic design fool you – these boats are anything but ordinary. Catamarans come in a range of sizes, from small day boats to luxurious yachts, and offer a unique sailing experience that’s hard to beat.

One of the biggest advantages of catamarans is their stability. With two hulls instead of one, they’re less likely to tip over or roll in rough waters. This makes them a popular choice for families or those who prefer a smoother sailing experience. They also have more living space above and below deck compared to monohulls, with spacious cabins, lounges, and kitchens that are perfect for extended trips.

But let’s not forget about performance – catamarans are no slouches when it comes to speed and agility. Their twin hulls create less drag in the water, allowing them to glide through the waves with ease. And with their sleek, aerodynamic designs, they can often outpace traditional monohull boats.

Of course, catamarans do have their downsides as well. They can be more complicated to handle compared to monohulls, and require more space to in marinas or docks. They also tend to be more expensive than other types of sailboats, but hey, you can’t put a price on luxury.

Hull design

Per definition, the hull design is the biggest differences between monohulls and catamarans.

Let’s start with monohulls. These boats typically have a single hull that’s shaped like a long, narrow tube. This design allows them to slice through the water with ease, making them great for speed and agility. The hull is usually rounded or V-shaped at the bow, which helps to cut through waves and reduce drag. At the stern, the hull flares out to create a wider, more stable base.

Now, onto catamarans. These boats have two hulls that are connected by a platform, giving them a unique look and feel. The hulls are usually wider and flatter than those of monohulls, which provides a greater amount of stability. This can be especially beneficial for those who are prone to seasickness or prefer a smoother sailing experience. The flat shape of the hulls also creates less drag in the water, allowing for higher speeds and better maneuverability.

When it comes to sailboats, stability is crucial for a comfortable and safe journey on the high seas. So, which type of boat – monohulls or catamarans – reigns supreme in this category?

Well, let’s start with monohulls. These boats have a single hull, which means that their stability comes from the shape and weight distribution of the hull. Generally speaking, monohulls tend to be less stable than catamarans, especially in rough waters. This is because the single hull has to work harder to maintain balance, and can be more prone to tipping or rolling.

With two hulls connected by a platform, catamarans are the kings and queens of stability. The twin hulls provide a wider base and more buoyancy, making them less likely to tip over or roll in rough conditions. This can be especially beneficial for those who are new to sailing or prone to seasickness.

Maneuverability

Let’s talk about maneuverability – the art of smoothly navigating your vessel through the choppy waters. When it comes to monohulls vs. catamarans, the level of maneuverability can vary depending on the design and size of the boat.

Starting with monohulls, these boats are typically designed for speed and agility, which can translate to better maneuverability in certain situations. Their narrow hulls and single keels allow them to slice through the water and make quick turns, which can be useful in tight spots or when navigating through busy marinas.

Now, onto catamarans. With two hulls and a wider beam, these boats can be more challenging to maneuver in tight spaces. However, they do have some tricks up their sleeves. For example, many catamarans have engines that can rotate 360 degrees, allowing for greater control and maneuverability in tight spots.

Of course, when it comes to maneuverability, the skill and experience of the captain also plays a big role. A skilled sailor can make even the most unwieldy vessel dance through the water with ease, while a novice may struggle with even the most nimble of boats.

So, whether you’re piloting a monohull or a catamaran, it’s important to keep your wits about you and stay alert to your surroundings. And if all else fails, just remember the time-honored sailor’s adage – “When in doubt, let it out!”

Accommodations

Starting with monohulls, these boats typically have a more compact interior layout, with limited headroom and sleeping quarters. However, this can be a trade-off for a sleeker and more agile vessel that can slice through the waves with ease. Plus, with some creative packing and organization, a monohull can provide all the basic amenities you need for a comfortable voyage.

With their wider beam and spacious design, catamarans offer more room for living and sleeping quarters, as well as additional amenities like a galley kitchen and a bathroom. This can make for a more luxurious and comfortable sailing experience, especially for longer voyages. In addition, the two-hull design offers more space on deck for dinner parties or sunbathing in the trampolines

Of course, when it comes to accommodations, everyone’s preferences are different. Some sailors may prefer the cozy intimacy of a monohull, while others crave the roominess and luxury of a catamaran. It all depends on your personal style and needs as a sailor.

Performance

Let’s delve into the topic of performance, which is a critical factor when selecting a sailing vessel. Each sailor may have a different perspective on what constitutes optimal performance, but generally speaking, it comes down to speed and efficiency.

When it comes to speed, catamarans have an advantage in downwind performance. Their wider beam and twin hulls give them more sail area and a greater ability to surf down waves, resulting in faster speeds. However, monohulls are often faster when sailing upwind, as their pointed hull allows them to sail closer to the wind.

The upwind angle is an important consideration for sailors, as it affects how close to the wind they can sail. sloop rigged monohulls are known for their ability to sail at a higher angle upwind, which can be a major advantage when sailing in areas with narrow passages or limited space to maneuver. Catamarans, on the other hand, may need to tack more frequently in order to reach their destination when sailing upwind.

Maintenance

When it comes to sailing, we all know that proper maintenance is key to keeping your vessel in tip-top shape. So, when it comes to choosing between a monohull vs. a catamaran, it’s important to consider the maintenance requirements for each type of vessel.

Monohulls generally have simpler systems and structures, which can make maintenance a bit easier and more straightforward. However, the tradeoff is that they may require more frequent maintenance and repairs due to their smaller size and simpler design.

Catamarans, on the other hand, can be more complex and may require more maintenance in terms of their twin hulls, rigging, and systems. However many important systems like engines, bathrooms, or water tanks are in both hulls which give you redundancy and options. Also, their larger size can make accessing and maintaining these components a bit easier.

Regardless of which type of vessel you choose, regular maintenance is a must. From checking and maintaining the sails and rigging to ensuring the engines and electrical systems are in good working order, taking care of your vessel will ensure that you’re able to sail safely and confidently.

When it comes to the cost of a sailing vessel, there are many factors to consider. Let’s take a closer look at how monohulls vs. catamarans stack up.

First off, monohulls are generally considered to be more affordable than catamarans, both in terms of the initial purchase price and ongoing maintenance costs. This is due in part to their simpler design and smaller size, which requires less materials and labor to build and maintain.

On the other hand, catamarans can be quite costly to purchase and maintain, especially if you opt for a larger or more luxurious model. The wider beam and heavier construction of a catamaran can also mean higher slip fees and storage costs at marinas. But don’t let that deter you! If you have the means and the desire for a more spacious and comfortable sailing experience, a catamaran might be worth the investment.

Of course, the cost of a sailing vessel is just one piece of the puzzle. You’ll also need to consider other expenses like fuel, insurance, and ongoing maintenance and repairs. And let’s not forget the most important cost of all: the cost of living your best life on the open sea!

So weigh your options carefully, and remember that the true value of a sailing vessel goes far beyond the price tag. May the winds of fortune guide you to the vessel of your dreams, and may you sail with joy and a full wallet!

Resale value

Resale value is an important consideration when it comes to buying any type of vessel, and monohulls and catamarans are no exception. Generally speaking, catamarans tend to hold their value better than monohulls due to their popularity among sailors and their reputation for being spacious and comfortable. However, resale value can also depend on the specific make and model of the boat, as well as its age, condition, and location.

Of course, there are always exceptions to the rule. Some monohulls may have a cult following and fetch a higher price on the resale market, while some older catamarans may not hold their value as well as their newer counterparts. Additionally, factors such as maintenance, upgrades, and customization can also affect resale value.

In conclusion, when it comes to monohulls vs catamarans, there is no one-size-fits-all answer. Each boat has its own advantages and disadvantages, and the decision ultimately depends on your personal preferences, needs, and sailing goals. If you have the money, looking for a faster ride downwind and don’t mind sacrificing a bit of upwind performance, a catamaran might be the way to go.

Resale Value

On the other hand, if you want something cheaper, prioritize sailing close to the wind and want a boat that is more easily handled in a variety of conditions, a sloop rigged monohull might be the better choice. Of course, other factors such as accommodations, and maintenance also play a crucial role in the decision-making process.

So whether you prefer the sleekness of a monohull or the stability of a catamaran, make sure to consider all the options and weigh the pros and cons carefully before making your final choice. And as with any big decision, it never hurts to consult with experienced sailors, boat dealers, or brokers to get their expert opinions. Happy sailing!

How Much Does Biofouling Slows Down your Boat?

Are you wondering how much biofouling can impact the performance of your sailboat? The amount of how much biofouling slows down a sailboat depends on various factors, such as the type of boat, its size, and the severity of the biofouling. On average, a sailboat with a heavily fouled hull can experience a reduction in…

What is a Ketch Sailboat?

Ketch boats are frequently seen in certain regions and offer various advantages in terms of handling. However, what is a ketch and how does it stand out? A ketch is a sailboat with two masts. The mainmast is shorter than the mast on a sloop, and the mizzenmast aft is shorter than the mainmast. Ketches…

What is a Sloop? Definition, Types and History

A sloop is a type of sailboat that has a single mast and a fore-and-aft rig. Sloops are a type of sailboat that has been around for centuries. They are known for their versatility and ease of handling, making them popular among sailors of all skill levels. Sloops have a single mast and a fore-and-aft…

Basic Sailing Terminology: Sailboat Parts Explained

Sailing is a timeless activity that has captivated the hearts of adventurous souls for centuries. But, let’s face it, for beginners, sailing can be as intimidating as trying to navigate through a dark, labyrinthine maze with a blindfold on. The vast array of sailing terminology, sailboat parts and jargon can seem like a foreign language…

Whats the Difference between Standing Rigging and Running Rigging?

Running rigging refers to the movable lines and ropes used to control the position and shape of the sails on a sailboat. Standing rigging, on the other hand, refers to the fixed wires and cables that support the mast and keep it upright. As the sun rises on another day, we find ourselves immersed in…

What is a Keel?: The Backbone of a Ship

As ships sail through tumultuous seas, their stability and maneuverability are tested to the fullest extent. The intricate design and engineering that go into a ship’s construction ensure that it can withstand the forces of nature and navigate through any challenging conditions. One of the most critical components of a ship’s design is the keel,…

Articles and Guides

Catamaran vs Monohull: The Great Sailboat Debate

16th jun 2023 by john burnham.

Do you love the natural sounds of water sliding past the boat’s hull and a breeze blowing across your rigging and sails while gliding ahead powered only by the force of the wind? If yes, you are well-suited to spending plenty of time on a sailboat, like so many generations of boat people before you.

But do you take your lead from the Egyptians who rigged sails on their boats built of reeds along the Nile River or follow the path of the Polynesians, who used an outrigger for extra stability and sailed from one Pacific island to the next in the earliest catamarans?

The question of which is better for sailing, one hull or two, has been a matter of debate over thousands of years. Today, let’s explore these two basic types of sailboat, and while we may not settle the argument once and for all, hopefully in the process you will begin to discover which option is better for you.

What Are the Differences Between Catamaran and Monohull Boats?

The monohull and the catamaran (often referred to as “cat”) are the two most common categories of sailboats, and of the two, the monohull far outnumbers the catamaran in popularity due to its simplicity and sturdiness. Advocates of the catamaran, however, are typically even more convinced than monohull sailors that their boats are best due to performance potential and overall spaciousness.

What are catamaran-style boats?

Catamarans are easily identified by their two-hull design. Two hulls sit side by side with an interconnecting deck or structural beams across the bap in the middle. Catamarans have been around since Pacific Islanders and other Austronesian people sailed them centuries ago, and they continue to gain popularity in a wide range of designs both as high-performance racing boats and ocean-cruising designs.

Although not part of this debate, a third sailboat type comparable to a catamaran is a trimaran. Trimaran sailboats are constructed similarly to catamarans but have three parallel hulls rather than two. Collectively, catamarans and trimarans are referred to as multihulls, and sailors of both types often refer lightheartedly to monohulls as “monomarans.”

What are monohull-style boats?

Monohull sailboats are the most common boat type because they feature a single hull, typically with a single mast and two sails. Rather than maintaining stability with a second hull creating a wider beam, monohull boats usually carry lead or other heavy ballast in their keel, or are stabilized by human weight as their crews lean out to counter the force of the wind. Monohulls can also be excellent racers and cruisers, depending on their size, volume, sail area, and displacement or weight.

Where Catamarans and Monohulls Excel

Each type of boat has its advantages, depending on what the owner wants in a boat. Here are the main advantages of each type.

Catamaran advantages

• More space . Catamarans have greater beam for a given length, which provides more space for the crew on a daysailer and larger living quarters on cruising designs, which are often laid out with berths in each hull and living quarters across the bridgedeck between hulls.

• Faster hull . If they are light enough, the sleeker shape and reduced wetted surface of two narrow, shallow hulls can produce quicker straight-line sailing speed than a single, deeper and wider hull.

• Comfort and stability . Two hulls provide better initial stability and generally heel less than monohulls, especially in light- or medium-strength winds and waves.

Monohull advantages

• Upwind sailing . When sailing against the wind, monohulls often sail at a closer angle to the wind and arrive more quickly at their destination.

• Easier motion . Heavier monohulls often have a slower, gentler motion in waves than a lighter catamaran.

• Load carrying capability . A monohull’s performance is reduced less than a catamaran’s when the boat is loaded heavily with cargo or crew.

• Righting characteristics . Larger monohulls have weighted keels that provide increased resistance to a capsize when the boat is heeled far over by wind or a wave and if capsized will return the boat to an upright position.

Catamaran vs. Monohull Sailing Speed

There are several reasons why a catamaran is often faster than a monohull boat. These include the fact that most catamaran hulls have less water resistance than monohulls, they are often lighter, and they can be more easily driven by a relatively small sailplan. At similar lengths, a catamaran can be dramatically faster than a monohull under similar sea conditions. However, weight is the enemy of a catamaran’s speed; a heavy or heavily loaded catamaran may be much slower than a lightweight monohull.

Catamaran vs. monohull power

A monohull under auxiliary power may be faster than a catamaran in certain conditions, like powering against a strong wind. In other wind and wave conditions, the catamaran is often faster. Also, with an engines on each hull, the cat is often much more maneuverable in close quarters or at the marina. While it may seem counter-intuitive, turning and controlling the boat is often less challenging than when sailing a monohull boat with the typical single engine. Monohull boats require more finesse when in tight quarters like berthing in a marina.

Catamaran vs. Monohull Efficiency

A sleek monohull may sail against the wind super efficiently, pointing close to the wind and making an excellent speed. However, the power-to-weight ratio of the catamaran allows it to make good use of whatever wind it has. Some fast, light catamarans can travel at speeds equal to or faster than the wind, something very few monohulls can achieve. When the wave action increases and you start sailing into the wind, the catamaran may lose its advantage, and in strong winds, the greater windage of the wide catamaran may have a pronounced slow-down effect compared to the sleeker monohull.

Catamaran vs. Monohull Stability

Despite not having a weighted keel, a catamaran design is able to avoid heeling over in strong winds or bad weather due to its greater width or beam. As a result, the multihull also tends to be more stable at anchor and any time in calmer seas. However, if the winds are strong and the waves are large, a monohull, with its keel weight and ability to sail against the wind while controlling the sails, is sometimes the steadier of the two types. While a monohull with weighted keel can be knocked down by strong gusts of wind, it will only capsize in extremely large waves. Likewise, a cruising catamaran can only capsize in large ocean waves, unless it is a fast, lightweight catamaran, that can more easily tip over in gusty winds and waves.

Catamaran vs. Monohull Safety

Power catamarans and power monohulls are relatively comparable in terms of safety. But depending on the size of the mast and sails, the weight of the boat, and the wind and wave conditions experienced, many sailors believe that a monohull configuration is safer than a catamaran for a sailboat. That’s mainly because while a monohull will initially heel over further in a strong gust of wind, the weight of its keel provides increasing stability as described above and if completely capsized, the keel typically helps the boat self rescue.

It should be clarified that many sailing catamaran designs are conservatively configured and difficult to capsize except in extreme ocean wave conditions—and the same can be said for larger power catamarans.

In terms of ultimate safety in the event of a capsize, however, the catamaran is considered safer because even should it turn once upside down, even if damaged, the catamaran with its two hulls and minimal ballast typically remains buoyant and provides a safer configuration in which to await rescue. By contrast, if a monohull’s hatches and port windows suffer damage in a knockdown, the boat can more quickly take on water and, weighed down by its keel or other ballast, be more difficult to keep afloat in extreme conditions.

Photo credit: Fountaine Pajot

Monohull vs. Catamaran Maintenance

Depending on size, age, and type of hull construction, maintenance costs will vary, but when comparing two fiberglass sailboats of similar length, the catamaran typically costs more to maintain. That’s because there are two hulls to care for, two engines, connecting structures that align the two hulls, and an overall larger boat due to the catamaran’s greater beam. Hauling and launching a catamaran can be more expensive at many boatyards, as well.

However, smaller catamarans of about 20 feet in length or less are often more comparable and sometimes cheaper to maintain than a similar length monohull. That’s because cats are often lighter and suitable for keeping on a trailer rather than in a slip or on a mooring.

Catamaran vs. Monohull Cost

Compared to similar length monohulls, a catamaran will likely cost more than a monohull boat. That’s mainly because when you purchase a 40-foot catamaran, you are buying two hulls and two engines, but you are also buying a bigger boat that typically has much more volume. In the case of a 40-footer, you end up with a boat that has a large saloon and three or four private cabins, whereas in the monohull, the saloon is smaller and you’ll have three smaller sleeping cabins. Annual maintenance will also be greater, as described above.

Among smaller catamarans and monohulls, pricing will vary, and a lightweight beach cat may be less expensive than a heavier monohull keelboat of similar length.

Catamaran vs. Monohull, Pros and Cons

Depending on a variety of factors, there are plenty of catamaran and monohull pros and cons. These are some to keep in mind when comparing the two boat types.

Catamaran pros

• Comfort . On a cruising designed catamaran, two hulls with a wide beam create a stable and comfortable living environment with open spaces and plenty of standing room.

• Speed . Smaller, lighter catamarans are speed champions, especially in a moderate wind and modest waves. Cruising cats are often fast when sailing at reaching angles.

• Maneuverability . When equipped with two engines, a catamaran is highly maneuverable under power.

Monohull pros

• Upwind sailing . Although catamarans are often faster when sailing in a straight line, monohulls typically perform better against the wind.

• Self-righting . Except for unballasted monohulls that rely on crew weight for stability, the ballasted keel of a monohull prevents capsizing in most circumstances and the keel makes the boat self-righting.

• Maneuvering under sail . Monohulls turn more easily due to their shape, maneuvering in close quarters or tacking when sailing against the wind.

Catamaran cons

• Lack of feel when steering . Except in lighter, more performance-oriented catamarans, the broad platform with two rudders and two hulls sometimes isolates the sailor and provides little feedback through the helm when under sail.

• Sailing against the wind . Upwind sailing is generally not a catamaran’s best point of sail, but its straight-line speed can be such that it may arrive quickly at its destination, even though you will have traveled much farther than in a monohull.

• Pricing . Catamarans are typically more expensive than monohull boats due to their two hulls and other required build components and complexity.

• Not self-righting . Thanks to its wide beam and two-hull design, a catamaran is more difficult to flip, but it is not designed to right itself except for small beach cats where the crew can use their weight to re-right the boat.

Monohull cons

• Weight . Most monohulls have thousands of pounds of weight in the keel for ballast that is vital to its stability but can degrade performance.

• Wave motions . Monohull boats are much more susceptible to rolling wave motions.

• Cabin . With the monohull cruising design, you'll typically find a darker interior with smaller port windows and fewer space options.

• Heeling effect . Monohulls will heel over in a moderate wind, which is normal but often uncomfortable for newer sailors.

Written By: John Burnham

John Burnham is a marine editor and writer with decades of journalism experience as Chief Editor of boats.com, Sailing World, Cruising World, and other boating websites. As a competitive sailor, he has led teams to world and national titles in the International One-Design, Shields, and other classes. Based in Newport, Rhode Island, John is a PCC leadership coach, a member of the America’s Cup Hall of Fame Selection Committee, and a past board member of Sail America and US Sailing. For more, see johnsburnham.com .

Best Wakesurf Boat Brands

4th Mar 2024

The Best Flats Boats Brands, Special Boats for Skinny Waters

21st Feb 2024

Best Lake Boat Brands for Fishing, Cruising, and Watersports

15th Feb 2024

Best Aluminum Fishing Boat Brands: Tougher, Lighter and More Affordable

Explore Rightboat
Boats for Sale
Boating Articles
Buyers Guide
About RightBoat
Sell Your Boat
Boat Selling Advice

Enter your email to keep up to date with the latest news

Join for free

Sign up now for free and discover how easy it is to keep up to date with THE latest boats for sale. Find your right boat, and tailor your voyage to finding your next boat.

Benefits of becoming a member:

Set up tailored alerts
Personalise your experience
Download full specifications and broker details
Keep tabs on your favourite boats

Are you a broker? Join as a Broker

Rightboat - join for free.

Do you have an account already? Login

Save this search

Save your search and receive new boats in your email..

You can unsubscribe from your alerts whenever you like. By pressing the button you accept the Legal Terms and conditions

Catamaran vs. Monohull: We Changed, Should You?

There are two schools of thought when it comes to monohull versus catamaran. We have done extensive cruising and lived aboard two monohulls and four catamarans over the past 25+ years . We experienced the good and the bad for both single hull and multihulls first hand. Quite honestly, the pluses for catamarans far outweigh the minuses. There are multiple benefits of catamarans. They are faster, more stable and spacious, and have shallower drafts allowing safer anchorage closer to shore. Being on a stable platform with no heeling cuts down on crew fatigue and seasickness leaving the crew more alert and in control of the vessel. Even novice sailors feel more confident on catamarans.

When we built our monohull Royal Salute in the early 90s, catamarans were not established and were looked upon with extreme suspicion by most cruisers, including ourselves. “Safety and the capsize” issue were always the first things to come up against sailing catamarans. It is a fact that monohulls can get rolled in heavy seas but will right themselves because of the heavy lead keel, and while crew and vessel will be battered, the roll is survivable.

However a catamaran once capsized, will remain upside down (jokingly referring to this state of the catamaran as “reaching its most stable position when upside down”). The inability of a catamaran to self-right was and still is a major bone of contention. However, what is not often discussed is that a monohull has about a 5,000 pound keel of lead that is constantly trying to drag the boat to the bottom of the ocean versus a catamaran that has no ballast and is in most cases with modern catamarans, unsinkable.

So the options are to either sail the world on a boat that, if it springs a leak, will sink like a stone or a vessel that cannot self-right in the event of a capsize but will not sink no matter what. So from a practical point of view, here are our observations over the last 25+ years of living aboard, on the advantages and disadvantages of a catamaran.

ADVANTAGES OF A CATAMARAN

1. speed equals safety.

The speed of a catamaran makes it possible to outrun bad weather. While catamarans do not point as high into the wind as a monohull (or if it does, it makes more leeway or slides sideways), it is about 20% faster than a monohull. This means that even if you sail upwind at a slightly wider angle to the wind than a monohull and have to cover more distance, you will still arrive at your destination long before a monohull.

A modern performance catamaran with daggerboards and good quality sails will point as high as a similar sized monohull. It will point the same as a comparable monohull and sail much faster and therefore arrive at an upwind position much sooner than a the monohull. It is important to note that most of the production catamarans on the market are under-powered and are equipped with standard smaller sails. In lighter breezes many of these designs perform poorly unless fitted with bigger headsails, a Code Zero and a square-top mainsail.

While we believe that more comfortable and safer in rough weather , we have to concede that when the weather gets really bad (60 knots of wind or more) we would personally prefer to be on a monohull from the standpoint of surviving. I would say that a monohull is preferable for serious offshore single-handed sailing because you can more easily hove-to in a monohull. We have been in some extreme weather on a number of catamarans and never really felt that we were in danger, although it takes some nifty seamanship.

A monohull could capsize in extreme weather or even roll in a storm, but they generally come back upright. A catamaran on the other hand, will not right itself. But the cat will generally stay afloat, offering a good place to survive while you wait out the storm or until help comes along. Well-designed modern catamarans are very hard to capsize though.

Having said all that, most catamarans can do 200 to 250 miles a day and with modern technology allowing one to pull down weather at will, there is no good reason why you should get caught in extreme weather. A faster boat is a safer boat as it will in many cases be able to outrun bad weather. With good weather routing information a catamaran can avoid most serious weather and, at worst, place itself in the most favorable position to avoid the brunt of a storm.

2. A Catamaran is a Stable, Safe Platform Underway

Catamarans have no ballast in the keels like monohulls do and therefor it relies on beam and buoyancy for stability. Typically cruising catamarans will have a beam to length ratio of roughly 50%, although many designs nowadays exceed the 50% rule of thumb. So, a 45-ft long catamaran will be about 22-ft wide, providing a very stable platform when sailing. Unlike catamarans, monohulls cannot overcome the rolling and pitching with their narrow beam and the lead ballast for stability.

This rolling and pitching makes the deck on a monohull very unsafe whereas on walking around on the deck of a catamaran while underway is far easier since the boat is much more stable, and it doesn’t heel. This makes sail changes and reefing much easier and a lot safer for the crew. Without the rolling and pitching motion, the danger of falling overboard on a catamaran is considerably less than on a monohull.

3. Crew Fatigue Reduces on a Catamaran

Because a catamaran does not heel over like a monohull, it offers far more comfort underway because the motion is mostly fore and aft pitching and very little beam-to-beam rolling. On all points of sail, a catamaran tracks upright and significantly reduces crew fatigue and seasickness. Seasickness is usually caused by things like anxiety, fatigue, hunger and cold, which all add to a sense of disorientation. This leads the crew to making bad decisions and seamanship errors that could be fatal to the crew and vessel. The more stable platform of the catamaran will hugely keep those issues at bay, making the crew more alert and energized.

Every action and chore including cooking is much easier on a catamaran when underway. It is much more pleasant to be on the deck level looking out rather than being stuck “down below.” It is also much nicer to sleep on a boat that doesn’t heel. I remember nights at sea in our monohull when I was rolling around in my bunk unless I was properly wedge in a little corner. That is simply not the case on catamarans.

All these factors ensure that your crew will not expend unnecessary energy to simply try and stay upright, onboard and safe on a long passage. Your crew on a catamaran will be well rested and alert and will be able to function well if a stressful situation arises.

4. Comfort at Anchor

Catamarans provide a wide platform and therefore offer lovely spaces to relax at anchor without the rolling motion that monohulls have a tendency to do in a swell. During our 15 years of cruising on a monohull, we have often had to leave anchorages that we really were not finished exploring because of a rolly, uncomfortable anchorage. Big rollers or swells coming into an anchorage can make conditions in an anchorage very uncomfortable and unsafe.

We were anchored off Funchal on the island of Madeira in our monohull Royal Salute once, when we were forced to leave our anchorage. The rolling became so bad, we were rolling from gunnel to gunnel. The anchorage became untenable to remain anchored, forcing us to go out to sea in foul weather in the middle of the night. This is an extreme case but believe me, we have left many an idyllic anchorage because of a rolling swell into the anchorage. Catamarans, on the other hand, do not roll from like monohulls have a tendency to do and are far more comfortable at anchor.

5. Anchor Bridal Setup

Catamarans are fitted with a bridle, attached to both bows and down to the anchor chain, resulting in a very stable position at anchor. What we found with our monohull was that because the bow acts as a sail (because of the high freeboard), the boat tended to sail at anchor in high winds. It sailed in one direction until the chain snatched and tacked over and sailed in the other direction, feeling like it might dislodge the anchor altogether. The catamaran on the other hand sits at anchor a lot more stable and doesn’t sail around as much.

6. Ease of Boarding on a Catamaran

Thank goodness we were much younger and more agile during our monohull days. Royal Salute and most monohulls of her generation or older, have high free-boards, making it quite a feat to get onto the boat from the dinghy. It was one of the most challenging things to do because unlike the more modern monohulls that have a scoop at the back, we had to climb up on the side of the boat to get on and off. We, of course rigged steps, etc. but it was always a hassle compared to the ease of getting on and off a catamaran from a dingy or from the water.

7. Shallow Draft Equals Better Anchorages

Catamarans have significantly shallower drafts than monohulls, allowing for safer anchorages closer to shore. Most catamarans in the 40-ft to 50-ft range draw between 3-ft to 4.5-ft, so they can anchor in places that a monohulls can not even consider. In the shallow waters of the Bahamas for example, the catamarans have a big advantage. We often anchor our own catamaran just a few feet away from a beach. It definitely allows one to be able to explore areas where the water is shallow without the fear of running aground.

The shallow draft also allows for emergency repairs in shallow water and even doing the bottom job when the tide goes out as we have done in places like Mtwapa Creek in Kenya, East Africa. The catamaran easily rests on her keels on the sand without help making it a breeze to do the “annual haul out” even in remote locations.

8. Dinghy Davits & Dinghy Size

All catamarans have a set of davits that make it very easy to raise and lower the dingy. Our monohull and most cruising monohulls do not have an efficient or easily accessible set of davits. This makes raising and lowering the dingy an elaborate production. Catamarans on the other hand, has davits systems easily accessible and some even have platforms to rest the dinghy on.

The lack of beam and difficulty of lifting the dinghy also limits the size and type of dingy that one can reasonably carry on a monohull. As we all know, the dingy is your transport to and from shore and diving or fishing spots, so the bigger and faster the dingy, the better off you are. A catamaran can carry both a heavier and bigger dinghy which makes the popular center consul dinghy so much more possible.

9. Interior Space and Comfort on a Catamaran

We sailed 32,000 NM on our 45-ft monohull, happy as clams, not realizing that sailing does not have to be done lying on your ear 24/7 while on passage or sitting knee-to-knee in the cockpit at anchor with your two other guests at the dinner table! One can liken sitting in a monohull cockpit to sitting in an empty Jacuzzi, you are always nice and close to the other folks.

Now that we are on our fourth catamaran, there are a few things that have become more evident to us than the incredible space and comfort of a catamaran, not only at anchor but also underway. The cockpit and living space in general are huge compared to a monohull, making for very comfortable and spacious living conditions. It feels more like you are at home, rather than just on a camping trip.

Knowing that one spends at least 90% of one’s cruising life at anchor, it’s important to have good open living space, which most modern cats nowadays offer. A lot of cats have walk around beds, lots of storage, every modern appliance including washer/dryer, etc. However, one has to fight the urge to fill the space if you want to keep the cat light and fast.

Sailing with guests onboard for extended periods of time, in close quarters can become claustrophobic but on a catamaran people are spread out and separated. With guests sleeping in one hull and the owners in another, catamarans offer much more privacy and separation. Some cats even have privacy doors that will close off the entire hull and has a separate entrance onto the deck, which really separates you from the guests completely.

There is very little heeling on a catamaran, so there is no need for hand grips and safety harnesses inside the boat. There is nothing better (and safer) than being able to walk from the cockpit into the living room (saloon) on one level or one step down at most. In a monohull, when heeling at a severe angle, you would have to claw your way from the companionway steps down to the living area, while fighting to stay upright, significantly tapping your energy.

Unless you hit extreme conditions, everything stays put on a catamaran reducing the anxiety before doing passages of having to stow and secure everything. This very issue makes a lot of cruisers reluctant to weigh anchor and explore more often. It is just too much effort to pack away all your stuff once comfortable in an anchorage!

One thing you will notice is that the stove on catamarans are not gimbaled like it is on monohulls and this should tell the story in itself. The stability and comfort on a catamaran is far superior. Cooking is easy and safer. I often open a nice cold beer, put it down to do something and forget about it only to find a warm beer later in the same place I left it. This is not something that happens on a monohull.

10. Redundancy on a Catamaran

Unlike monohulls, catamarans have a lot of critical redundancies. That of course means two hulls to clean and anti-foul, double the engine maintenance, etc. but having two of the critical equipment like engines for instance, outweighs the downside.

With two engines, if one fails you still have adequate propulsion to go anywhere. If by some fluke the second engine also fails, you have a full set of spares to fix at least one of them. Our friends once hit a sleeping whale off Tanzania, and when it dove, it hit the prop, bending it. They limped into the narrow channel on the one engine but at least they could make it to a safe harbor where we surveyed and repaired their damage.

We often only use one engine when motoring while making passage in order to conserve our fuel. The one engine is totally capable of moving the boat along at a good speed unless you are in heavy seas and you may need more power. Other than that we only use two engines to dock or maneuver the boat in close quarters.

Because there are two engines there are also two independent charging systems via the alternator on each engine. If one alternator goes out, there is still another complete charging system. There are two rudders and if one fails or falls off (as has happened to our friends on a monohull off Columbia, where they almost lost their boat) you have a second rudder that is completely capable of steering the boat by itself indefinitely. That holds true for several things on a catamaran!

11. Maneuverability

The engines are spaced far apart on a catamaran and it makes maneuvering much easier and more precise than monohulls, unless the monohull has a bow thruster. We did not have a bow thruster (not many monohulls do) and had to rely on prop-walk and using prop wash on the rudder. A modern catamaran can do a 360 turn on her own axis. A monohull cannot do this and have a bigger turning circle. However, a monohull under sail is much more maneuverable and certainly will tack a lot faster than a catamaran. The ease in maneuverability under engine on a catamaran in close quarters specifically, is vastly superior comparatively.

12. Rigging

Because of the beam on a catamaran the spinnaker pole has become unnecessary equipment. Hallelujah, I say. That pole on our monohull was a pain the behind and I always hated having to use it. On a catamaran, one can fly an asymmetrical cruising chute or spinnaker, using the bows to tack the clew or run a guy through a block so it is very much simplified, easier and safer.We also sail wing-on-wing with twin headsails when we sail downwind. We use our furling jib and furling Code Zero. It is as easy as one, two, three.

DISADVANTAGES OF A CATAMARAN

1. bridgedeck slamming.

One advantage most monohulls do have when underway is that they don’t slam. Catamarans with a low bridgedeck clearance can experience significant slamming in confused seas sailing upwind. This slamming can be quite disconcerting when you first experience it as we did on a Shuttleworth 44 design, our first ever catamaran experience, 20+ years ago. At times, it felt as though the boat was falling apart. Of course the boat was fine but nevertheless, the stress on the crew from the constant noise and discomfort was significant.

Monohulls don’t have a bridgedeck which means no slamming and are therefore a bit more comfortable than l ow bridgedeck catamarans when beating into severe confused conditions or “washing machine” conditions as we call it. Modern catamarans mostly have better bridgedeck clearance and the slamming is significantly less. However, not all cats have a good clear tunnel under the bridgedeck. Some manufacturers build beds into the bridge deck in order to make more space in the chest of the catamaran where the slamming occurs. These protuberances into the bridgedeck tunnel will likely increase slamming. So be mindful of that when selecting a catamaran. We currently own a Bali 5.4 and the bridgedeck clearance on this boat is more than adequate and the tunnel is clear. We therefor experience very little slamming compared to our Prout 45 that we previously owned (picture of sister ship below) with a much lower bridgedeck.

We Explain Bridgedeck Clearance

In the pictures below, the Bali 5.4 has very good clearance from the water to the bridgedeck and has a nice clean tunnel versus the very low bridgedeck of the Sunreef 50.

2. Sailing Downwind

Monohull spreaders are set at 90 degrees to the mast whereas a catamaran has to have backswept spreaders. The reason is that, on a monohull, there is a backstay and using this, plus the intermediates you can get a nice pre-bend in the mast (the pre-bend is to flatten out the main sail and allow for better performance).

On a catamaran with no back stay, you need to use the back swept spreaders and the diamonds to pre-bend the mast. The reason I point this out is because on a catamaran, if you want to broad reach or run, the mainsail cannot be let out all the way because the backswept spreader tips could punch holes in the fabric.

On a monohull, the spreaders are at 90 degrees so you can let the main and the boom out much further which is, of course, much more effective. This is one of the reasons it is better to broad reach and tack downwind on a catamaran.

Whether a monohull or multihull, sailing dead downwind doesn’t usually make great VMG. Therefor a regular cruising cat, much like a monohull, needs a lot of sail area and has to sail deep downwind if it is to achieve a decent speed made good (VMG). This video demonstrates how we achieve this by sailing wing-on-wing downwind.

It is more difficult to find a dock either as a transient or a permanent slip for a catamaran in general because of the wide beam. But this is changing fast and will soon not be too much of an issue. In the USA dockage is charged by the length of the boat in feet, so there is no disadvantage there but, in some places, (the Mediterranean for example), dockage is charged at length times one and a half because of the additional beam.

Since the catamaran is stable at anchor, we mostly anchor out. We have more privacy, a better breeze and usually a stunning view.We have a nice dinghy with a good outboard engine and is big and comfortable enough to get to shore fast and together with the modern conveniences like the generator, watermaker and washer/dryer, docking becomes a non-issue.

It is definitely more difficult to find a travel lift with enough beam for a catamaran for a haulout, while, for a monohull, there are absolutely no problems anywhere. The wide beam of cats also greatly limits the number of shipyards that can haul them out. Most catamarans over 40-ft must be hauled out with a 50-ton travel lift. This not only increases the cost of the haulout, but greatly limits the choice of the shipyards for repairs and maintenance. With limited choice, prices are high for shipyard services.

Catamarans do tend to have a lot more windage than monohulls. This can be an issue especially when maneuvering in close quarters with a strong wind. But I have found that, provided the engines are powerful enough for the size of catamaran, that twin engines negate this problem. Also, many modern large catamarans now have a bow thruster fitted. It is super easy to dock.

The cost of getting into a catamaran is much higher than that of monohulls. That could put a serious dent in your cruising kitty or require you to put your dream on hold a little longer. Pre-owned monohulls on the other hand are very cheap to buy comparatively, because the supply presently far outweighs the demand.

Catamarans are in high demand and they typically hold their value much better and longer and the trend is now heavily in favor of the catamaran market. When prospective buyers contact us for catamarans under $250,000 the choices are very limited and catamarans under $100,000 is near impossible to buy. In this case, your best bet is to go with a monohull unless you go with much older boats like the Prouts or the less expensive Geminis.

Our Own Catamarans & Monohulls

FYI: Royal Salute , a Bruce Roberts 45 monohull, was the first boat we owned and sailed approx. 30,000NM on. Mythral, a Seafarer 30, was our “toy boat” while we were waiting for our catamaran to be built. Even though this classic little monohull sailed around the world, it didn’t have much in modern conveniences like running water. Siyaya was an Island Spirit 40 catamaran that we sailed from Cape Town to Florida on and then taught live-aboard sailing classes for several years. Zuri I was a Prout 45, a beautifully crafted catamaran but by today’s standards is considered old technology. Our Lagoon 450 SporTop ( Zuri II ) is a fantastic live-aboard catamaran. We lived and taught aboard her for three years but sold her last year and we currently own a Bali 5.4 ( Zuri III or Z3 as we call her now). Read about our various boats .

CONCLUSION: CATAMARAN vs MONOHULL

We were dyed in the wool monohull sailors for 15+ years. We loved the pretty lines of monohulls, the sailing ability and what we believed at the time to be much safer vessels. However, now that we have been avid catamaran enthusiasts, we simply can never go back to monohulls. Catamarans have come of age and with modern technology have overcome most objections that sailors of old had against them. They are well designed and built, are safe, and we simply love that they sail fast and upright. There is not a whole lot to dislike about a catamaran when you live aboard. We have weighed all the pros and cons of catamarans and found that the pros far exceed the cons. We made the change to a catamaran and do not regret it one bit!

We hope that this article will clear things up for all the prospective catamaran owners out there.

Contact us if you have any questions regarding catamarans, Fractional Yacht Ownership or our Charter Management Programs .

Estelle Cockcroft

Join our community.

Get the latest on catamaran news, sailing events, buying and selling tips, community happenings, webinars & seminars, and much more!

4 thoughts on “Catamaran vs. Monohull: We Changed, Should You?”

I read that the engineering on the catamarans were improved over the years. Whats the oldest year would you recommend designwise?

Scott, my apologies for the late reply. We’ve been traveling in Africa. Anyway, catamarans have come a long way and improvements in technology is happening at lightning speed. I reckon that even the older model catamarans are good. It depends on what your needs are. If you want something a little better performance wise, I would go for something no older than 15 years.

After buying a catamaran what is the difference in expense of a catamaran vs a monohull. Many articles state that not only the initial cost of a catamaran is more it the operating cost as well.

Hi Todd, it is more expensive. The annual dockage and haul out as well as maintenance will be more expensive. You obviously have two engines to maintain and various other pieces of equipment to service in both hulls. While there is more equipment there is also more redundancy and of course you have the comfort factor. So, depending on your situation, it’s probably worth it.

BALI Catamarans Unveils The New Bali 5.8 Flagship

CATANA GROUP launches its 14th BALI CATAMARAN model, the BALI 5.8, for the brand’s

Love Stories At Sea…because it’s valentine’s day

Because it’s Valentine’s day, we wanted to celebrate all the couples that we helped

Your Go-To Resource for all your Catamaran Needs!

Check out our brochure to learn about all we have to offer and why

For more than 30 years, we have been a part of the catamaran community and created Catamaran Guru™ to encourage and educate all the aspiring sailing out there. We understand the dream of traveling the world by catamaran and created a one-stop-shop to make that dream a reality for you.

Stephen & Estelle
Testimonials

Get Started

Yacht Sales
Used Yachts
Charter Management
Boat as Business Programs
Seminars & Events

Course Checklist
Important Information
How to Get to Us
Our Instructors

Catamarans vs. Monohulls

Which is better, a monohull or a catamaran.

This question gets asked a lot in sailing. Especially if you are looking to take your friends or family out for the week: which will be better, a catamaran (aka cat) or monohull (aka mono)? The short answer is it depends what sort of experience you are looking for. Let's explore this further.

Tell me more about monohulls and catamarans.

Monohulls are boats that have one hull. They are the classic sailing yachts that you see old black & white photos of, racing off Newport or Cowes.

Catamarans on the other hand have two hulls. They tend to be newer, and are said to be less traditional, although some of the earliest sailing boats ever developed may well have been catamarans.

Image: monohull (left) and catamaran (right)

Things to consider

Now that we understand the difference between catamarans and monohulls, let's look at attributes that are important in sailing. Once we have explained these, we can look at how each boat-type deals with them:

For obvious reasons, you want to have a stable boat. Monohulls are a bit like a roly-poly doll, where when pushed over, they tend to right themselves. That is unless they reach what is termed the "angle of vanishing stability" or AVS. Catamarans deal with stability in a different way.

Catamarans tend to be much more stable in most conditions, but should they capsize, they quickly become stable, albeit upside down.

Nevertheless capsizing is such a rare occurrence that "stability" here really means comfort when sailing.

Angle of Vanishing Stability (AVS) graph, image thanks RYA: rya.org.uk

Living area

Your boat needs to strike a balance between sailing well and being comfortable to spend time in. The layout of the boat is important in this regard: what level it is on, how large it is, and how square the space is.

Lagoon 450 Living Area. Image thanks vivisail.com

The draft of a boat is how far in the water it goes. "How much does she draw" means "what is the minimum depth of water that this boat needs so she doesn't go aground". Monohulls by definition require a keel, a heavy piece of iron or lead that goes deep into the water. Catamarans do not require this, and therefore tend to have a "shallower draft".

Draft and Freeboard explained. Image thanks thecampfirecollective.com

Maneuverability

Being able to easily maneuver your boat is clearly an advantage in tight situations, such as when docking in a crowded marina. Both monohulls and catamarans have their pros and cons here, which will be explained further below.

Maneuverability, image thanks Cruising World (cruisingworld.com)

The speed of a sailboat is not as simple as for a motorboat. The angle of the wind has a large effect on the speed of a sailboat. Some boats can sail faster when close to the wind - monohulls normally fall into this category - while others can sail very fast when the wind is on their side (aka a beam reach) - catamarans usually like this sort of "reaching" sailing.

F50 catamaran in the fastest sailing competition in the world. Image thanks SailGP and James Wierzbowski

Having natural light and a decent view can make the living space much more comfortable. With monohulls, most of the living space is "down below" whereas for catamarans, most of the living area happens "up" in the saloon which is located between and above the two hulls. This creates two different environments. One person's "cozy" is another person's "claustrophobic". Just the same, one person's "light and open atmosphere" is another person's "soulless". So there is a fair degree of taste to this particular aspect.

Interior of the incredible Nautor Swan 48, image thanks Nautor Swan

"Feeling Sailing"

By this we mean the feel of the boat responding to the wind as she slices through the water. Some people sail for this feeling, while others simply sail as an ecological, efficient way to move from A to B. Monohulls and catamarans offer very different visceral experiences here.

WallyCento Tango sails off Monaco, image thanks Gilles Martin-Raget/Wally Yachts

In breaking down the pros and cons of monohulls and catamarans, we found that a pro for one was a con for another. With that in mind, we think it is more helpful to list the pros of each, so you only read it once. Here goes:

8 Pros to Catamarans

1. catamarans are inherently stable..

Two hulls provides a wide base, which means in most sea states, less "bobbing". Every now and then, when the space between wave tops is a certain distance, the cat can lurch. But this is more the exception than the rule.

Great illustration of reduced rolling on a catamaran, image thanks aeroyacht.com

Here are some more pros of stability:

Stability is a big factor for families with young children or seniors. It suits "non-sailors" in the group;
Stability is very helpful for those prone to sea sickness (although scopolamine patches are probably still required if someone is very susceptible to getting sea sick);
Stability means things are more comfortable at anchor, and for cooking;
Because cats don’t heel over nearly as much, storage and stowing of provisions and household items is much easier.

Apologies for resolution, a brilliant graph on catamaran stability, thanks sailingcatamarans.com

2. Catamarans have more space.

Catamarans generally have much more living space in the main salon, galley and cockpit, and in the cabins. This can allow for greater privacy when chartering with friends or children, as the two sleeping areas (one in each hull) are separated by the living area. Here are some more pros of space:

More space on a catamaran for preparing food, which means the cooking experience tends to be less a balancing act, and more like the kitchen at home;
More space on a catamaran for storing things, which means people are not tripping over them throughout the trip.
The space on a catamaran is square-shaped, akin to an apartment, as opposed to a monohull which tends to be more rectangular.

Interior of a Lagoon 620, image thanks Indigo Bay Yacht Charters

3. Catamaran living space is above the water line.

On a monohull, almost all living space on a is at least partially below the water line, which limits light and view, and can lead to claustrophobia in some. Catamarans on the other hand, sit above the water line. In addition:

Ventilation in the main saloon area on catamarans is generally excellent, given their above-water design.
Most of the living quarters are also above the water line, which allows for more light and a better view, as well as better circulation of air.

4. Catamarans can venture into shallower areas.

The lack of keel on a catamaran results in a shallower draft, allowing to anchor in shallower water, which is especially valuable around reefs in the tropics.

Shallow draft of a catamaran, image thanks aeroyacht.com

5. Catamarans can turn on a dime.

Because catamarans have two engines and two rudders, maneuverability in tight spaces is improved, with most cats being able to turn 360º within the length of the boat.

6. Catamarans (usually) sail faster.

Without the need for a heavy keel, catamarans are lighter than an equivalent monohull. That, plus the fact that they keep their sails perpendicular to the wind, means they sail faster than monohulls, especially on a run or broad reach.

The magnificent HH66 catamaran, image thanks Sail Magazine

7. Catamarans are harder to sink.

Without the need for a lead-weighted keel, catamarans are not just lighter and faster, they are also harder to sink. Monohulls have been known to "lose their keel", by hitting something such as a semi-submerged container or even a whale. When this happens, the boat will tend to sink within minutes. Catamarans do not have a keel to lose, which means in this (admittedly very rare, blue-water) event, catamarans come out trumps.

8. Catamarans allow spooning.

Most catamarans have a trampoline or net at the front. This allows for spacious and comfortable cuddling under the stars - not to be underrated.

Monohull Pros

1. monohulls look great..

You can’t beat a monohull sailboat for good looks. Classic, sleek, beautiful, there is a timeless beauty to monohull sailboats.

Catamarans on the other hand have a “non-traditional” aesthetic that some consider to be a little harsher on the eyes. Let's face it, many are downright ugly.

DJI_0021-SailingVirgins-TisaSencur-BVI-2019-Edit

2. Monohulls are a romantic, evolving tradition.

Do you love the old photos of well-dressed people sailing their immaculate wooden monohulls in beautiful surroundings? If you answer yes to this question, take a good look at monohulls. That romance and tradition is still there.

3. Monohulls give you more options.

Due to the sheer volume of monohulls made over the last century, there are many more options for a boat that meets your individual lifestyle, personal aesthetic, or budget.

4. Monohulls carry a lower cost.

Monohulls take up half the space at a marina than catamarans, and therefore generally cost you half as much.
Monohulls are more readily available used in good shape, and cost less to charter for equal sleeping capacity.

5. Monohulls sail better upwind.

Due to their keel, monohulls can sail higher into the wind than most catamarans. Some of the more exotic catamarans have daggerboards which serve the same purpose as a keel, and therefore improve windward performance substantially. However 95% of cruising cats (ie. those you can charter) do not have daggerboards. Furthermore:

A monohull will be far easier than a catamaran to tack.
Monohulls slice through the water effortlessly. On some catamarans you get an irritating slapping of water on the bridge decks in rougher seas.
A monohull is generally faster to respond to the helm (in other words, they turn faster). This is because most cruising cats have little "spade rudders", with their depth dictated by the need to have a shallow draft. Whereas with a keel, a monohull can have a far deeper (read: more responsive) rudder for its draft.

Monohull sailing upwind, image thanks Sail Magazine

6. Monohulls give you more feedback when sailing.

This factor (and lower cost) is why most sail training happens on monohulls. If you have too much sail out for the wind, your overpowered monohull will heel over and become a pain to sail, before anything breaks.

On a catamaran you get less feedback at the wheel, which if you are not being very attentive can get you into trouble in big winds.

Then there is the visceral joy of "feeling sailing". A monohull will heel (meaning it is designed to tip over anywhere from 10º to say 50º) whereas a catamaran won't. While their increased heeling can be a performance disadvantage, it can also be an advantage as it is a lot of fun.

7. Tacking is easier on a monohull.

While they can accelerate faster, catamarans also decelerate much quicker, and as such can have a harder time maintaining momentum through a tack. It depends what sort of sailing you are after. If it is about enjoying being outside, and not so much about the sailing itself, then a catamaran is fine. But if you are out there sailing for sailing's sake, then you will probably find more enjoyment on a monohull.

8. Monohulls tend to swing less at anchor.

While they may rock more in a side to side motion than their equivalent catamaran, monohulls tend to swing less at anchor.

Libertas on a mooring ball. Monohulls exhibit less "sailing on their anchor" when moored.

Conclusions

The above shows that there are no clear winners to the Catamaran vs. Monohull debate. At Sailing Virgins we teach and cruise on both monohulls and catamarans. If you have to make a decision yourself it really comes down to:

How much hard-core sailing you (and your crew) intend to do;
What your budget is;
How much space you need;
How shallow the bays are that you would like to visit.

We hope that helps your decision making. If you would ever like to know more, if you become a Sailing Virgins Patron, you can take part in any of our once-per-month live Q&A sessions, where absolutely any sailing-related question if yours can be asked and answered. Patron support starts from as little as $3 per episode. Click here for more information.

Essential Gear for Your First Sailing Adventure (2023)

Embarking on your first sailing adventure: must-have gear and essential tips.

If the call of the...

Unveiling La Paz, Mexico: An Unforgettable Sailing Destination

Welcome to la paz, an irresistible paradise for adventurers.

Ahoy, adventure-seekers! If you're...

How To Avoid Seasickness: 10 Tips For A Smooth Ride

Seasickness, or motion sickness, is a common problem that can ruin your sailing adventure. It’s...

Catamaran vs. monohull: Navigating the waters in style and comfort

Catamaran vs. Monohull: Navigating the waters in style and comfort

Embarking on a journey across the open waters has long captured the human spirit of adventure. The realm of sailing offers a plethora of options, each delivering its own unique experience. Among these, catamaran sailing stands out as a modern and luxurious way to navigate the seas. In this article, we delve into the world of catamaran sailboats, compare them to monohull counterparts, and help you discover the ideal choice for your maritime dreams.

Unveiling catamaran sailboats

Catamarans, known for their twin hulls and spacious decks, have redefined the sailing experience. These impressive vessels offer stability, ample space, and a comfortable layout, making them a favorite among sailing enthusiasts. Whether you're a seasoned sailor or a beginner, a catamaran promises a remarkable adventure on the water.

The thrill of sailing a catamaran

Sailing a catamaran brings a new level of excitement. The feeling of gliding through the water with minimal heeling is exhilarating. The wide deck areas provide plenty of space for relaxation, sunbathing, and socializing. Catamarans are also well-equipped with modern amenities, ensuring a comfortable journey.

Read our top notch articles on topics such as sailing, sailing tips and destinations in our Magazine .

Monohull sailboats: A classic choice

Monohull sailboats, with their single hull design, embody tradition and elegance. These boats are known for their responsiveness to wind and waves, offering an authentic sailing experience. While they may have less space compared to catamarans, their sleek design and maneuverability make them a beloved choice for purist sailors.

Choosing between catamaran and monohull

Deciding between a catamaran and a monohull often boils down to personal preferences. Catamarans excel in stability and space, making them suitable for larger groups and extended trips. Monohulls, on the other hand, offer a classic sailing feel and perform well in various weather conditions. Consider your priorities and the type of adventure you seek.

Sailing catamaran: A luxurious experience

Catamarans offer more than just a sailing experience; they provide a luxurious way to explore the waters. With spacious cabins, well-appointed kitchens, and modern bathrooms, catamarans feel like floating vacation homes. The comfort and opulence they offer have elevated the world of maritime leisure.

Navigating choppy waters: Monohull vs. catamaran

In rough seas, the design of a catamaran shines through. Its twin hulls provide excellent stability, reducing the rocking motion common on monohulls. If comfort during challenging weather is a priority, catamarans have a clear advantage.

Sailboat catamaran: Best of both worlds

For those who desire a mix of tradition and modernity, sailboat catamarans offer the best of both worlds. These vessels combine the classic aesthetics of monohulls with some of the space advantages of catamarans. Sailboat catamarans cater to sailors who value both performance and comfort.

Setting sail: Monohull yacht adventures

Monohull yachts, especially those designed for racing, offer a thrilling experience on the water. The feeling of harnessing the wind's power to glide through the waves is unparalleled. Monohull yachts are favored by competitive sailors and those who relish the art of traditional sailing.

Exploring the multihull sailboat

Beyond catamarans, the realm of multihull sailboats includes trimarans, which have three hulls. Trimarans offer a unique combination of stability and speed, making them suitable for both leisurely cruises and exhilarating races. They are perfect for those seeking a balance between comfort and performance.

Catamaran sailing yachts: Unmatched elegance

Sailing yachts built on the catamaran platform exude elegance and sophistication. These vessels are designed to provide a lavish experience, with spacious cabins, gourmet kitchens, and lavish lounging areas. Catamaran sailing yachts redefine luxury living on the open sea.

Catamaran landing near Anse Severe on La Digue Island, Seychelles

Monohull vs. multihull: Making the right choice

Choosing between a monohull and a multihull depends on your preferences and intended use. Multihulls, including catamarans and trimarans, offer stability and space. Monohulls provide a classic sailing feel and are favored by those who appreciate tradition. Consider your priorities and aspirations to make an informed decision.

Catamaran sailing safety and tips

Safety is paramount when sailing, regardless of the vessel type. Catamarans' stability reduces the risk of capsizing, but it's essential to follow safety guidelines and weather forecasts. Proper training, regular maintenance, and responsible navigation contribute to a safe and enjoyable sailing experience.

Catamaran sailing offers a blend of luxury, comfort, and adventure on the open waters. Monohulls continue to captivate with their classic charm and sailing prowess. Both options cater to different tastes and aspirations, ensuring that the world of sailing remains diverse and inviting.

So what are you waiting for? Take a look at our range of charter boats and head to some of our favourite sailing destinations .

FAQs about catamaran vs. monohull

Call Us (561) 445-5664

Catamaran vs. Monohulls: Pros and Cons

small boat swinging in the left during the morning

Published Aug 30, 2021

Going on a trip but don’t know what boat to use? If you have been eyeing Catamaran and Monohull boats, you are in the right place. If you can’t choose between the two, knowing their pros and cons should help you decide. In this article, we will be battling catamaran vs. monohulls to determine which one is more suitable for you.

What is Catamaran?

A catamaran is a sailboat with multihulls that features two parallel hulls of equal size. This type of boat has been popular ever since because of its stability and size. In addition, vacationers tend to sail with catamaran boats because of their space above and below.

What are Monohulls?

Unlike catamaran boats, a monohull is a boat that comes with only one hull. Monohull boats are the most widely used form of waterborne vessel. Sailing in a monohull may satisfy a person’s inner sailor self and give them the whole sailing experience. In addition, this type of boat is cheaper than other boats since it only caters to one hull.

Since catamaran and monohulls are completely different boats, we should compare and contrast their characteristics.

Spaciousness

The multihulls of catamarans give the boat additional space for the galley, cockpit, and more rooms when it comes to space. Catamaran boats also feature shallower draft, smaller displacement, and less hull volume than monohull boats. Therefore, this boat is more spacious than a monohull boat. It should be what you’re looking for if you’re sailing with family or friends.

On the other hand, monohull boats provide limited space, and most spaces are below the waterline. This might be concerning, especially for non-sailors, like vacationers. However, long-time sailors are most likely used to this situation. In addition, a monohull is smaller than most catamarans since it only consists of one hull.

Stability and Comfort

Another advantage of having multi-hulls is inheriting more stability than a one-hull boat. Catamarans are less prone to rocking and heeling, which makes them an ideal boat for family vacations. Large families usually include kids or seniors that get out of balance easily. Sailing in a catamaran boat would surely be more comfortable for you. Catamaran also features a separated skipper cabin that separates the crew and boat guests. Some larger skipper cabins provide full equipment like an isolated shower, sink, and toilet. In catamaran boats, you can sunbathe, lounge, or even jump on a trampoline while onboard.

Monohull boats are obviously less stable than multi-hull catamarans. From the word “mono,” monohulls only have one hull, which makes it prone to being rocky than a multihull boat. A rocking boat might not be an ideal vacation boat for families.

Here are the advantages and disadvantages of sailing for both boats:

Catamaran boats are often faster than monohulls when sailing downwind, reaches, and broad. Moreover, they have low bridge decks likely to slap on the undercarriage when the boat is sailing upwind. That is what slows the speed of the catamaran boats.

Monohulls sail through water without any slapping or pounding that may slow down the boat. They tend to be faster than catamaran boats when going upwind since the slapping slows down the multihull.

Pounding and slapping

Multihulls are made so that guests and sailors can get the most out of their vacation. That is why producers of catamarans try their best to add as much platform in the boat as the low bridge deck. Unfortunately, the low bridge deck of a catamaran tends to pound and slap the undercarriage of the boat, especially when sailing upwind. Some people find the pounding and slapping sound annoying.

Monohulls don’t have a low bridge deck, so sailing comes smoothly for monohull boats. Monohull guests wouldn’t have a problem with the noise at all.

Maneuvering and docking

Multihulls are powered by two engines. Having two engines can be extremely helpful when it comes to an emergency. These engines make it possible for the boat to rotate to a full 360 degrees. Catamarans also have two rudders which makes it easier to dock the boat.

Monohulls are easier to maneuver because of their size. However, the monohull only consists of one engine for the whole boat. The engine of the monohull can be combined with a front bow thruster so the yacht/boat can move sideways, which is helpful for tight spaces. This function makes it easier for the sailor to dock the boat.

Catamaran boats are more expensive than most monohulls because of their features. They are known as a high-quality boat that reassures sailor’s guests that it’s safer than most boats and costs a lot of building materials as catamaran boats are more spacious. Catamaran boats may cost more because it’s a high demand boat. The cost for docking for this type of boat also costs double the price of a monohull since it’s bigger.

Monohulls usually cost cheaper than most catamaran boats because of the monohull’s building materials. Multihull boats typically need to double the building materials required for a catamaran. Therefore, monohull boats with the same sleeping capacity and equipment as the catamaran may cost cheaper than buying a catamaran.

Catamaran vs. Monohulls: What to Choose?

Catamarans are more expensive, but it’s a family vacation-friendly boat that offers a lot of advantages. On the other hand, monohull boats are cheaper, simpler, and perfect for aspiring sailors. In the end, it all comes down to the person’s preference, budget, and what suits their needs. So I will ask you, catamaran vs. monohulls? (Related: What to Know Before Renting a Catamaran Charter )

Experience Yacht Charters With Seafari In Boca Raton Florida

Looking for a great time on the water in Boca Raton Florida? Seafari Yacht Charters is number choice for yacht rentals in Boca Raton . Book our yachts for parties , exciting day trips to the Bahamas, romantic yacht dinner cruises , and much more. Come experience all South Florida has to offer with us.

Fact Checked By Experts

Our team of internal experts has conducted rigorous fact-checking on this content. Explore the editorial standard for our website to dive deeper into our commitment to excellence.

About The Author

Krizzia Paolyn has a bachelors degree in Psychology and a passion for yachting in South Florida. She has a desire to be heard and to encourage others to make their voices heard as well.

A lady on a yacht enjoying the yachting benefits.

Yachting Benefits You Might Not Know

Set sail on an extraordinary journey from Miami's vibrant energy to the allure of Key West, the southernmost gem of the United States.

How To Charter A Boat From Miami To Key West

A Catamaran charter in the middle of the sea.

What To Know Before Renting A Catamaran Charter

Find us on social media.

View Our Privacy Policy

Website design by Correct Digital

About Sailonline

The One Source For Yacht Charters And Charter Yacht Ownership

What is boat chartering
Choose your best charter type
Choose your charter company
Choose a cruising area
Choose the right boat
Booking your charter
Your sailing resume
Yacht Charter Destinations Chart
Catamarans vs. monohulls
Bareboat Destination Skills
Sailing Area Table
Caribbean weather info
What to pack for your charter
Charter boat checklist
Internet access on charter
Briefing your charter crew
Saving money on charter
All boat charter tips in 1 file
Budget Charter Fleets
Provisioning a charter boat
Booking directly with a boat owner
The charter days you really get
Managing your boat on charter
Boat charter with kids
Seasickness tips
Starting a charter from the USVI
If you damage a charter boat
Flotilla charters
Charter with a handicapped child
Crewed yacht charter myths
Organize a crewed charter
Crewed charter tips
Browse The Database
Submit your Boat Listing
Yacht Management Contract
Buying a boat with a partner
Bareboat vs. crewed yacht
Charter Yacht Phase-out
Phase-out punch list
Yacht & Marine Surveyors
Charter Boat Owners forum
Yacht financial management tools
2nd tier fleets financial comparo
Active ownership FAQ
Layman guide to charter boat ownership
Is Buying A Charter Boat For You?
Buying a used charter boat
Yacht buyer representation
Bareboat vs. crewed yacht ownership
Active Yacht Ownership
Customers' Testimonials
Cruising Logs
Captain licenses
'Heaving to' maneuver: A must
Charter Boat Seamanship Manual
Yacht Crew Certification: All answers
Snorkeling & kayaking safely
Rules of the Road
MOB Crash-Stop Maneuver
5 Knots you must know
Flag Etiquette
Emergencies on charter
Distress calls at sea
Navigation on a yacht charter
Navigation aids sheets
Estimate distances at sea
Heavy weather basics
Caribbean weather information
VHF use: The basics
Raising Main Sail | UnPC
Anchoring technique & hand signals
Catamaran sailing tips
Docking: Avoid the embarrassment!
Mooring technique
Med-mooring technique
Dinghy handling: make the best of it!
Reefing a Catamaran

Remember Me

Forgot your password?
Forgot your username?
Create an account

Catamarans - Monohulls: Pros and Cons

With catamarans vastly popular in the charter industry, and showing no sign of abating, let's compare the pros and cons of monohull and catamaran strictly on the charter work point of view . The reason why this distinction is important – and I write this as a monohull fanatic myself - is because for charter companies, catamarans are in huge demand due to the overwhelming number of advantages they offer. Out of charter use, there is no question for me that, when the offshore going gets tough, I would much rather be on a solid monohull than on a catamaran - although the catamaran builders have come a long way to strengthen comstruction. But this is just a matter of opinion!

Catamaran Pros

On deck The cockpit, highlight of catamarans, is usually huge, since it spans over both hulls. The cockpit and the salon are on the same level, which enhances the feeling of light and spaciousness, along with the typical huge panoramic windows. The foredeck area is very large as well and sports a big pair of nets between the hulls, the notorious trampolines, which make a great sun bathing area. In any case, it is a great observation spot and a kids' favorite. As a result of this roominess, a catamaran rarely feels crowded, as it is relatively easy to get some seclusion and quietness from other members of the party. Most cats are equipped with dinghy-davits at the transom, which is absolutely great: no more towing the dinghy, thus no more drag on the boat speed.

Down below The catamaran will provide you with considerably more room than a monohull almost everywhere on the boat: in the cabins and in the salon. Besides, there is ample headroom everywhere. A typical 43/47 ft. cat will have 4 large staterooms, with rectangular queen-size beds – no more of those pointy beds! - each with en-suite bathroom. A 38 to 42ft. will have 3/4 staterooms and 2/3 bathrooms. Most cats have an enormous salon/cockpit combination capable to entertain about 20 people in style! Because of the cats’ layout configuration, there is full privacy in every cabin and one does not hear anything from one cabin to the other.

Stability The key fact is that catamarans have a phenomenal stability: they do not heel under way and do not roll at anchor. This usually makes seasickness a non-event. Incidentally, it makes it somewhat safer for kids running around. Whether at anchor or under way, a catamaran is always much more stable than a monohull. Stability is also a good factor for elderly people and/or first time sailors. As a matter of fact, a catamaran will give the latter an excellent impression for their first cruise, instead of memories of being seasick!

Speed & maneuverability There is no question that catamarans are faster under power or sail. Whatever your cruising goals are, catamarans will usually move you about more quickly than a monohull. Catamarans have shallow drafts. This means catamarans can get into places monohulls yachts often cannot reach, and that they can also anchor closer to shore. However, more and more charter cats now have small "sacrificial" keels to improve close-hauled performance. Lastly, I personally enjoy the phenomenal maneuverability of the cats. With 2 engines spread apart, you can pivot a cat of any size literally around the boat's central axis – and without the help of the rudders. The autopilot works particularly well on cats, on a tracking standpoint.

Catamaran Cons

A hard-core monohull sailor once said: "When I sail a cat, it feels like I am driving my living room!" He meant that a cat does not convey the "real" feeling of sailing, with the "rail in the water" as sailors say. That is precisely because a cat does not heel, whereas a monohull does, and sometimes a lot. So if you are in for hard, pure sailing, you will not get that felling on a cat. Only a monohull will give you the full experience!

A cat does not typically sail well upwind and needs a different technique for tacking and anchoring. ( See tips for cat handling ).

It is often said that anchoring a catamaran can be more difficult. This is due to the fact that catamarans have more “windage” than monohulls, and, without keel and ballast, they have a tendency to “bob” on the water when a gust hits. ( See tips for cat anchoring )

Obviously, catamarans take up twice as much docking space as monohulls. This can be a bit of a problem in chartering areas where spending nights in marinas is a necessity.

If you are bringing with you a party of first-time sailors, or older people, or people who could feel apprehensive at sea, you probably will better off with a cat.

PREMIUM FILES
Pre-Owned Yachts
Charter Boat Owners/Buyers Forum
Favorite Links

Catamaran Or Monohull? 27 Important Facts (Explained)

Catamarans and monohull boats are two very different kinds of vessels. Each craft offers distinct advantages and disadvantages that you’ll want to consider before choosing between the two.

In this post, we’ll go over some of the important things to consider when choosing between catamarans and monohull boats:

Table of Contents

Cost & Availability

Both catamarans and monohull boats come in small recreational sailing versions, larger motorboat versions, and larger sailing models. In all cases, the catamarans will cost more and will be harder to find.

The reason catamarans are harder to find because there are not as many of them, and they’re mostly made overseas.

Also, there aren’t as many catamaran manufacturers, so sailors have fewer options when buying them.

On top of this, catamarans have only recently become popular in the United States and other areas of the developed world. This means the used market for boats doesn’t have as many catamarans on it. You might find that you have fewer options when making a used catamaran purchase, which could bring costs up to a premium.

Two Times The Fun with Catamarans

Another reason that catamarans are more expensive than monohulls is the fact that catamaran buyers have to purchase two hulls, two engines, and two of all of the components that help make an engine work.

Traditional sailboats and large powerboats with one engine don’t have this cost issue.

On top of this, a catamaran is much wider than a monohull, and thus you have more space to build and equip.

On the other hand, once you’ve purchased the boat, you do get to enjoy the benefits of having two of everything. We’ll talk about the advantages of this further down in this post.

Maintenance Cost Makes A Difference

The maintenance on a catamaran is also more expensive than the maintenance on a monohull boat. This goes back to the fact that there is twice as much of everything to maintain.

Catamaran owners will need to do preventative maintenance on two different engines, and they’ll have two hulls and a large deck area to clean and maintain as well. If they’re getting the bottom of the boat treated, they’ll have to do this twice (once for each hull).

Even the interior components can usually be found twice.

Each cabin will usually have a head in it, so you’ll have at least two toilets and sinks to maintain, which obviously has its plusses and minuses.

One positive aspect of this is that catamaran owners do have the option of deferring some of their maintenance. For example, if one head is no longer functioning properly, you always have the second one that you can use.

It also adds a bit of safety as well.

This is because while the catamaran does have two engines to maintain, the owner does have power even if one of the engines happens to go down.

Some catamaran owners also like to point out that maintenance may not have to be done as frequently. This is because the engines don’t have to work quite as hard, and other items like additional bathrooms and sinks might only be used half as much.

How Much Space Do You Need?

A catamaran has more space than a monohull. This is because the boat is wider, and it has a much larger deck area. It also has twice as many hulls, so you have more overall space between the two of them.

The additional space is great for people looking to throw parties on their boats.

Most boat owners would agree that the catamaran is usually the party boat of choice at the docks.

Even if you aren’t into throwing parties, the extra space can still be nice for relaxing on the deck or getting a suntan. The wide-open space also makes it easy to use the boat as a fishing platform.

Additionally, you have more space for stuff like surfboards, rafts, and other items that can easily clutter up the deck of a monohull. Even fishing can be easier from a catamaran as the deck provides plenty of space between different anglers.

Catamaran owners also have additional space for carrying fresh water and adding generators and solar panels.

Interior space is generally more plentiful on a catamaran, and luxury catamarans have an easier time fitting large items like washers and dryers inside of them. You can have these on larger monohulls as well, but it will be harder to make them fit than it is in a catamaran.

On the other hand, all of the additional space means the catamaran owner has more space to maintain and clean. Also, all of the additional items that can be brought onto the boat will make it heavier. A heavier boat will use more fuel, and it will travel more slowly.

Living Quarters Vary Between The Two

The living quarters on a catamaran are much different than they are on a monohull. Most people would agree that the berths in a monohull are much more spacious than in a catamaran.

A monohull offers people the opportunity to have a large bed with space on either side to walk around it. This is great for couples who want to get out of bed without waking up their partner.

Catamarans, on the other hand, have the advantage of being able to offer large above-deck salon areas. The galleys, the dining areas, and the living areas can all be above-deck, while the two hulls can provide heads and berths.

Some boat owners say that living in a monohull is akin to living in a basement apartment . Other boat owners prefer the monohull because it brings them closer to the water and gives them the feeling of being at sea.

Privacy Can Be Prioritized On Catamarans

A catamaran offers up many different living areas that people can take advantage of. For example, each hull will typically have its own bathroom and bedroom.

This gives each sleeping area complete privacy from the other.

The living quarters are usually up on the deck, so early risers can wake up and move to these quarters without waking up the others.

The same holds for night owls. A night owl can stay up late without bothering the people who want to retire to their beds earlier.

With two hulls, large catamaran owners can hire a crew and give them their own hull to live in so that there is separation between the cruisers and the crew. This is a wonderful advantage for honeymooners looking to have their own space.

The downside to all of this, of course, is that sometimes a family may not want the additional privacy. For example, a family with small children might not want their children in a different hull than they are.

Additionally, the extra privacy can make it hard for people on the boat to communicate. This could become a big problem in the event of an emergency.

For this reason, it is often recommended that each hull have a radio in it so that the occupants can quickly communicate with each other. Remember, even in inland areas, cell phone reception may not be very good inside the boat hulls.

Recreation In a Monohull vs. a Catamaran

Most sailors agree that sailing a monohull boat is much more exhilarating than sailing a catamaran. Traditional sailboats heel, and sailors get instant feedback while they’re sailing. For the most part, catamarans stay stable, and you don’t get the same feeling with the movement of the wind and the water.

When it comes to monohull powerboats, you have the advantage of being able to pull water skiers, kneeboarders, and tubers with ease, as long as the boat has the power and a planing hull. A power catamaran usually doesn’t have the speed or maneuverability to pull off these recreational opportunities because they are displacement hull designs.

Catamarans excel in more leisurely recreational activities. A catamaran makes a great party deck as well as a great cruising deck. Catamaran owners can comfortably walk around a catamaran without having to worry that the boat might knock them over the next time it decides to heel. This allows boaters to sit and talk with one another comfortably.

A catamaran can also be used as a beaching vessel. This makes it a great platform for people looking to go swimming or fishing around sand bars and other shallow water areas. It also makes it a great boat for sailors looking to sail a larger boat on a river or lake known for having shallow areas.

Swimming and Diving

Swimming and diving off of a catamaran are usually much easier than doing the same from a monohull. The wide stance of the two hulls offers boat designers the option to put in staircases at the back of both hulls.

In between these staircases, some boats will have an additional diving platform and/or a dedicated frame for pieces of equipment and dinghy storage. This makes catamarans great for swimmers, snorkelers, and divers.

On the other hand, modern monohull sailboats can also have good transom stairs for easy access to the dinghy and swimming. Both types of boats can easily travel far out to sea, giving boaters the option of diving in areas that can’t be accessed from beaches and developed areas.

Boat Draft In Shallow Waters

For the uninitiated, the boat’s draft refers to how deep the boat’s hull sits within the water.

A monohull typically sits deep within the water, while a catamaran sits much higher on the water. This is why we stated that a catamaran is good for shallow waters.

The advantage of having a boat that can go into shallow waters isn’t restricted to just recreational activities like swimming and fishing. A boat that can go into shallow water is safer to operate in areas where a boat with a deeper draft might become damaged.

Additionally, a catamaran has more stability on calm waters. This helps make a catamaran more comfortable to relax or sleep on while at anchor or the dock.

The deeper draft of a monohull boat has its advantages as well. A deeper draft provides more stability in rough waters and allows a boat to go further into the sea.

For this reason, many coastal cruisers will prefer catamarans, while many ocean voyagers will prefer monohull boats. In fact, some areas of the Caribbean and the Florida Keys can be off-limits to boats with deep drafts as it simply isn’t safe for the boat to navigate these waters.

This isn’t to say that you can’t navigate these waters in a monohull boat, but you will have to be cautious depending on how deep your monohull’s boat draft is. You wouldn’t have this issue in a catamaran.

Stability On The Sea

A catamaran offers a lot more stability in shallow waters, in calm waters, at the dock, and anchorage. This makes the boat great for cruising and for relaxing in port.

A monohull offers a lot more stability in rough waters.

This makes this boat great for heading out to sea and for navigating vast distances.

Safety Issues To Consider

Both catamarans and monohulls can be built to navigate the waters they were made for safely. This will be determined more by the boat’s category designation rather than the type of boat.

However, each boat deals with unsafe situations in different ways. For instance, a monohull boat is likely to right itself if it is capsized.

This means that even in rough seas, you’re unlikely to find yourself permanently capsized.

The downside to this is that should you become completely swamped from a capsize in a monohull boat, you are much more likely to sink. In fact, if there is a hull breach on a monohull boat, your boat could sink.

Catamarans are said to be unsinkable. This isn’t completely true, but it is very unlikely that a catamaran will sink. Even if a hull is breached, you still have a second hull to keep the catamaran afloat.

However, a catamaran can’t right itself. If you capsize your catamaran, it will stay capsized.

One other safety concern to consider is that a monohull sailboat will heel while a catamaran will not. This increases the chances that someone could fall off the boat or onto the deck in a monohull boat.

Catamarans Are Faster Than Monohull Boats

A catamaran is faster than the average monohull boat.

This is because they face less water resistance, and their narrow hulls don’t have to deal with their own bow waves as a monohull does.

Of course, catamarans aren’t always faster. Old cruising catamarans may not go faster than 8 knots, and modern monohulls can exceed 10 knots.

Monohull boats tend to sail downwind and in choppy seas better than catamarans. This gives them a speed advantage during ocean voyages.

We have a separate post with complete average speeds per type of catemaran . It’s a must read if you are at all concerned about speed!

Fuel Consumption Considerations

Catamarans have two engines to burn fuel, which can drive up fuel costs.

However, a catamaran is lighter on the water, so it usually takes less energy to move a catamaran. This means you’ll end up using less fuel in a catamaran than you would in a monohull.

On top of this, catamarans can decide to use just one engine in low wind areas. This further decreases the amount of fuel that a catamaran consumes.

These rules only apply to calm waters.

A monohull navigates waters with high waves and strong winds much more efficiently than a catamaran. In this case, you’ll use less fuel in a monohull than you would in a catamaran.

Sailing Differences To Notice

Sailing a monohull boat can be exhilarating. These boats can glide through choppy waters, and you get to feel the motion of the boat as the sea rushes by the cockpit and the wind causes you to heel.

This type of sailing also provides instant feedback as you’ll know what you need to do with the sails as you’ll feel what is going on through the boat’s motion.

Sailors all over the world have been using monohull sailboats for years, and you’ll find plenty of outlets for recreational sailing with a monohull sailboat.

Sailing catamarans do not heel like a monohull sailboat.

These boats, therefore, do not provide the sailor with instant feedback. Also, if you incorrectly sail a catamaran, you do risk capsizing the boat more easily.

Training Can Be Quite Hard

Sailing a catamaran and sailing a monohull boat are two different experiences. People looking to sail either should probably get professional training.

Obtaining this training will always be easier with a monohull boat.

This is because monohulls are more popular, so you’ll have more instructors available to you.

Do You (Or Your Friends) Get Seasick?

People who are prone to getting seasick easily might want to consider a catamaran. A catamaran provides much more stability in calm waters, and you get a lot less movement.

On the other hand, people who are not prone to getting seasick might prefer a monohull in choppy waters.

This is because a monohull will deal with deep and choppy waters with high waves much better than a catamaran will.

As a result, a catamarans movement can seem extreme under these types of conditions. People who have never gotten seasick before can end up sick under these conditions.

Here’s a separate article we wrote with everything you should know about seasickness on Catamarans . There are some things you can do and some things you should know!

Docking Is (Usually) Easier With A Monohull Boat

Docking a catamaran can be a difficult endeavor.

This is because catamarans are often too wide to be docked within the slips located in central areas of a marina.

Because of this, they need to be docked at the end of the dock. This leaves them with fewer spots to dock. It also makes docking more expensive.

Catamaran owners traveling through areas that are unlikely to have many catamarans in them may find it difficult to find a dock at all. This is true in areas of the northern Atlantic where monohulls are much more popular than catamarans.

Storage Issues To Consider

Even storing a catamaran can be more difficult. This is because storage facilities often do not have the equipment to get a catamaran out of the water.

The wide width of these boats requires special lifts, and not all boat marinas will have them.

Storage facilities that do get the catamaran out of the water will often charge more money for it. They’ll charge additional fees for taking the catamaran out of the water, and they’ll charge additional fees for the actual storage of the boat as well.

Redundancy And Backup Equipment

We touched upon this earlier, but it is worth repeating that catamarans have many redundancy built into them. This can be a big advantage when it comes to safety.

For example, if one rudder becomes inoperable, the boat can still be steered with the other one. If one engine becomes inoperable, the boat can still be driven with the other one.

In extreme cases, a hull could become damaged, and you could still stay afloat because the other hull will keep the boat safely above water. These safety advantages can save lives and keep people from becoming stranded out at sea.

The primary downside is the maintenance issue that we mentioned earlier. All of these redundant components will need to be maintained. As a result, maintenance costs will be close to twice as expensive in a catamaran.

Cooking Is Easier On Catamarans

Cooking on a catamaran is usually easier than it is on a monohull. The main reason for this is that a catamaran doesn’t heel like a monohull, so you don’t have to worry as much about things falling over.

This not only makes cooking easier, but it makes cooking safer as well.

Additionally, catamaran galleys tend to have more space in them to move around. Also, they are often up on the deck, so you don’t have to climb in and out of the hull with your dinner in hand.

Dinghy Storage

Monohulls and catamarans can both hold dinghies. The larger the boat, the larger the dinghy can be.

However, catamarans have a wide area at the rear of the boat that is perfect for holding dinghies.

This makes getting in and out of the dinghy easier. Also, people can often have larger dinghies on their catamarans because the boat’s stern is so accommodating.

Power Generation Is Easy On A Catamaran

A catamaran has a lot of space for solar panels and wind turbines. Rigid panels can be placed in areas that won’t be walked on, like overtop of the bimini, and flexible panels can be placed in areas where the panels might end up getting stepped on.

The width of a catamaran even gives them more opportunities to put hydro generators into the water.

This means catamarans can generate more power than the average monohull boat can generate.

On the other hand, a monohull usually has less powered items to worry about. Monohulls need less power to operate at full capacity, so you may not need all of the additional space for generating power.

Ventilation Issues To Think About

Some people feel that monohull boats don’t offer enough ventilation. This is especially true in warmer areas of the world.

Catamarans also lack ventilation within their hulls, but fortunately for them, much of the living space is located up on deck. This gives catamarans an edge when it comes to cruising in warm weather.

On the other hand, monohull owners aren’t exposed to the cold winds that you might find up on deck in harsher climates.

This lack of airflow may actually be of benefit in this instance.

Some people find monohulls to be better looking than catamarans and vice versa.

This all comes down to personal preference, so you’ll have to decide for yourself which type of boat has the advantage in this case.

Some people think catamarans are the most elegant thing in the world while others prefer monohull boats as they look more classic.

Resale Value Is An Important Factor

If you read our extensive guide to boat depreciation per boat type , you know that no matter what boat you buy, it will always go down in value. This is just a sad fact of boat ownership that people need to consider before buying a boat.

Many factors go into how much you’ll be able to get for your boat when you resell it. These factors are the condition of the boat, the age of the boat, and the economy in general. For example, people are less likely to want to buy boats during a recession. This is especially true when it comes to smaller boats.

However, one additional factor that catamaran owners need to consider when thinking about resale value is the value of the dollar.

People from the United States don’t have many American catamarans to choose from and will usually need to buy these overseas.

This means that a catamaran will be less expensive to buy when the dollar is strong compared to the Euro and more expensive to buy when the dollar is weaker in comparison. This will affect the used market as well because higher values on new catamarans can help to bring up the value on the used market.

With a monohull boat, you may not have to consider situations like this as there are makers of monohull boats all over the world.

Don’t Let The Length Trick You!

One thought to keep in mind when comparing monohull boats and catamarans is that their different shapes account for different space advantages.

For example, a 40-foot long catamaran will have much more cubic space than a 40-foot long monohull.

Because of this, when comparing boats, you should look at the cubic space rather than the length. In this case, you may be comparing a 48-foot long monohull with a 40-foot long catamaran.

When you compare the two types of boats in this manner, the price differences aren’t quite as large, and the comparison is fairer. It also may make the operating and maintenance costs more similar.

This is an important distinction to make because the length of the boats can trick you!

Consider Trying Both (Before Buying)

Boats can be an expensive purchase, so it makes sense to try them out before you decide to make your purchase.

Rent each type of boat and use it on the types of waters that you intend to cruise on the most.

Try the boat out in different weather conditions as well, and don’t be afraid to do multiple rentals before you make your final choice. The time and money invested into making sure you get the boat you really want will be more than worth it in the end.

Click to share...

My Cruiser Life Magazine

Monohulls or Catamarans – Which is Best for the Cruising Sailor?

The debate between catamarans vs monohulls still rages, and most boaters are firmly on one side or the other. The truth is, either a catamaran or a monohull can provide a wonderful way to enjoy sailing, traveling, and being on the water.

Both have advantages and disadvantages, and both have large and loud fan clubs. The choice between a catamaran and a monohull depends on your budget, lifestyle, and personal preferences.

My wife and I have owned both types of vessels over the years. After five years of cruising on a Lagoon catamaran, we decided to go old school and bought our current boat—a heavy, full-keel monohull. The catamaran was fun, for sure—but it wasn’t for us in the end. Here’s a look at all of the differences we learned about during our journey.

Life at anchor, life at a dock, life underway, living space, storage space, ride comfort and motion at sea, maintenance time and costs, docking and maneuvering, capsize risk, hull breach scenarios.

Rigging Safety

Rigging Strength and Configuration

Monohull vs catamaran speed, thoughts on catamaran vs monohull for circumnavigation, deciding monohull vs catamaran, faqs – catamarans vs monohulls.

Life on Sailing Catamarans vs Life on a Monohull Vessel

At anchor, a catamaran provides superb comfort and living space. The “upstairs” cockpit and salon mean that boaters can enjoy non-stop wrap-around views. Monohull boaters are stuck in their caves and must peek out of their small portlights or climb into their cockpits to view the world.

A modern catamaran will also have swim steps that make it easy to get on and off the boat and provide easy access to dinghies and water toys.

If there’s an uncomfortable roll or swell in the anchorage, the catamaran’s stability will make the roll a bit less noticeable. Monohull boaters are more likely to be adversely impacted in a rolly anchorage. This does not mean that the cat owners are getting a perfect night’s sleep every evening, however. Catamarans just have a different motion in rocky anchorages, not a lack of motion.

Life at a dock gets a little more tricky for catamarans. Most marinas were built long before the catamaran trend and feature traditional slip sizes meant for monohulls. Marinas have to put catamarans on t-heads or make other accommodations. Therefore, it can be harder and more expensive to find a catamaran-friendly dock.

Once at a dock, the massive space of a catamaran can be harder to heat and cool efficiently. Catamarans usually need several air conditioners or heaters installed, whereas a monohull can get by with only one or two. That also means that cats might need more power (50 or 100 amp service instead of 30 amp) than some marinas can provide.

Monohulls will have fewer issues finding marinas that can accommodate them, and they pay standard rates.

When sailing in protected waters, catamarans usually speed past their monohull friends. A catamaran provides a flat ride and sailors can move around their boats easily to make sail changes as needed. Walking on a catamaran’s deck is undemanding.

Catamaran sailors also have many options to rest comfortably underway. Because catamarans don’t heel over, catamaran sailors can sleep in their usual cabins. They can move about the interior of the boat with ease. Cooking in the galley doesn’t usually look any different underway.

In similar conditions, a monohull will heel over. Some sailors love the feeling of being heeled over and feeling the wind in their hair. Some don’t. It can be more challenging to walk the decks and work sails on a monohull vs a catamaran. While in the cockpit, monohull sailors will want to sit on one side and may even need to brace themselves to stay comfortable. For long trips, there is no doubt that living while heeled over for days at a time is exhausting.

Moving around the interior of a monohull boat at sea is also more challenging. Monohull sailors usually sleep in sea-berths with lee cloths instead of their usual quarters. It would be very uncomfortable to sleep in a v-berth underway, as the bow may be continuously pitching in seas. The lee-cloth in the sea-berth helps keep a resting sailor in their berth instead of falling onto the floor.

Monohull boats have gimbaled stoves. Even while the boat is heeled over, the galley stove will remain level. However, cooking in a monohull while underway is still more challenging than cooking in a catamaran since the cook needs to constantly brace themselves against the heel and rolling motion.

At the same time, none of this is to say that catamaran sailors have it easier at sea. In reality, catamarans may be more level, but they feel every wave in the ocean twice. The result is a choppy, bumpy ride with no rhythm. It can be just as tiring as being heeled over in a monohull.

Catamaran vs Monohull Sailing Compared

Here are just a few ways that catamarans differentiate themselves from monohulls as platforms for living aboard.

Living space—quantity and quality
Storage space and weight
Budget—purchase and routine maintenance
Maintenance
Catamaran vs Monohull for Circumnavigation
Docking and close-quarters maneuvering

Catamarans have significantly larger and often more attractive living spaces. On the other hand, the living space on a monohull is usually small and can be dark due to small windows.

A monohull’s cockpit tends to be small and focused on safety. Families are more likely to feel in each other’s way, and moving around while others are seated can be awkward. On a catamaran, the cockpit is likely to be large and social. Catamaran cockpits have large tables and lots of lounging space in the cockpit.

Catamarans have large trampolines forward, which provides another comfortable, social lounging space that monohulls lack. Many catamarans also feature additional lounge space via the large cockpit roof.

The salon on a monohull is located in the main cabin. A monohull’s salon will be smaller than a similarly-sized catamaran. Often there is a small table, room for several people to sit, and a single sleeping berth.

Catamarans feature a wide bridge deck that crosses both hulls. This large living area features great visibility, ventilation, and natural light. On some catamarans, the galley is located on the bridge deck (called “galley up”), and on others, the galley is located in one of the hulls (called “galley down”).

Monohulls have sleeping quarters in the bow and stern of the boat. On smaller monohulls, the main sleeping area is usually a v-berth. Older, smaller monohulls usually have just one head.

On a catamaran, the sleeping quarters are located in each hull. These cabins often feature regular-sized boat beds and large en-suite heads. Cabins on a catamaran usually offer more privacy than monohulls.

Catamarans are popular with charter companies because large families or groups of friends can enjoy living on a boat together in style and comfort. Each will have a private cabin and a private head. In addition, if you want to find space to exercise, do yoga, or watersports, you’ll find these activities much easier and more comfortable on a catamaran.

Catamarans have more space in general and certainly have more storage space. The additional deck space catamaran designs offer lends to easy storage for larger items, such as paddleboards and kayaks. Catamarans can often hoist and store larger dinghies than monohulls can. Large compartments make storage easy.

However, many catamaran owners are very cautious about storing too much. Additional weight can slow down a catamaran’s performance speeds. With so much space to put things in, it’s remarkably easy to overload a cruising catamaran. Many owners complain about the performance of smaller cats, when in reality they are often just badly overloaded.

Monohulls have less space and less storage. Finding space for big items like water toys can be challenging. But monohullers worry less about weight and freely carry around their cast iron skillet collections—because weight doesn’t impact performance on a monohull nearly as much.

This is a consideration when cruisers consider adding additional equipment. For example, a catamaran owner will have to consider the added weight of a generator and its detriment to sailing speed. In contrast, a monohull owner will have to consider finding space for the new generator.

Some prefer the motion of a monohull while sailing. Monohulls heel over but are steady, and sailors usually get used to the heeling motion. On a catamaran, if conditions are good, the boat won’t heel and will provide a comfortable ride.

When sailing upwind, some catamarans experience bridge deck slamming. Waves get caught between the two hulls and create a slamming motion and sound. It’s hard to predict the timing and strength of each slamming motion, so some catamaran sailors can find it tiresome.

The amount of bridge deck slam varies from boat to boat. Catamarans with higher bridge decks will experience less slamming, while boats with bridge decks closer to the water experience more.

Beyond that often-discussed issue, there is also the issue of the boat’s motion. It’s very difficult to imagine how different the motions are when compared to one another. The monohulls slice through the waves, usually with a predictable rhythm. A catamaran, built lightly to sail fast, feels more like it bounces over the tops of waves. The crew will feel each impact as each hull hits each wave. The result is a choppy, unpredictable motion—but it’s generally flat and level.

Monohulls have been around for ages. Therefore, sailors just starting out can find inexpensive, older monohulls. If you have a tight budget, you’ll probably start looking for a monohull.

Catamarans are newer to the market. Therefore, the initial purchase price of a catamaran is likely to be higher. Monohull buyers can often find a used, well-equipped, comfortable monohull for less than $100,000. Catamaran buyers usually spend upwards of $250,000 for a used cruising catamaran.

Because monohulls have been produced for so long, there is much more supply. The catamaran’s more modern pedigree means that there are always fewer catamarans on the market than monohulls. As more and more customers are drawn to the attractive living space and stable sailing offered by catamarans, demand keeps going up, while supply remains low.

Besides the higher up-front costs, catamarans are more expensive to keep and maintain. A monohull usually just has one engine. A monohull might have one head (bathroom) and will generally have less equipment. Monohulls have less space and storage, after all. Catamarans have twin engines, multiple heads, more hatches—more everything.

With more equipment, catamarans have higher maintenance costs. When a monohull owner services their engine, they have just one engine. A catamaran owner will need to service twin engines. Furthermore, each hull on a catamaran usually has separate and independent systems like bilge pumps, plumbing, fuel, water tanks, holding tanks…the list goes on.

A monohull owner will paint one hull bottom and wax only one hull. A catamaran owner will do everything twice. Therefore, the effort and cost of maintenance are often doubled on a catamaran.

Not only does it cost more money, it can also be harder to accomplish maintenance on a catamaran. You see, catamaran owners have fewer options to haul out. Most older boatyards have travel lifts that only accommodate boats up to 18 or 20 feet wide. Therefore, catamarans need to find a boatyard that has a large enough travel lift or a trailer to haul them. Because there is less supply and more demand for these larger travel lifts, the cost of hauling out a catamaran is often higher.

While some monohulls have lifting or swing keels and can reduce their draft, most catamarans have a shallow draft. This allows them greater flexibility while choosing anchorages. Even if a catamaran and monohull boat choose the same anchorage, the catamaran can get closer to shore and get better wind protection.

One final big difference between these two types of vessels is their ability to maneuver in tight spaces. Monohull sailboats are notoriously difficult to maneuver around docks and marinas. They often have poor visibility from the helm and difficult handling, especially in reverse. The single-engine design often requires a bow thruster, even on smaller boats.

The contrast that catamarans offer is pretty stunning. Even though they appear massive and ungainly in comparison, their twin engines mounted far outboard enable them to spin in their own length. Catamarans can be maneuvered in pretty much any direction using only differential thrust from the engines–all without a bow thruster.

Safety Considerations — Are Cruising Catamarans Safe?

Since most people have only limited experience with these vessels, many people wonder are catamarans safe. Even though they have been making large cruising cats for decades now, most of us have only really played on Hobie cats at the beach. And if there’s one thing we know about Hobie cats, it’s that they’re a lot of fun until you flip it over!

Here’s a look at a few safety considerations and how catamarans stack up against monohulls.

Catamaran stability — capsize potential
Hull breaches and sinking risk
Rigging failures
Designing for speed
Redundancy on board

So, can you capsize a cruising catamaran? The answer is yes, no matter what the fanboys and girls say. It is technically possible but highly unlikely. Cruising cats are massive, and in all likelihood, you’re more likely to break the rigging than flip the boat. But in rough seas and extreme conditions, it does happen even on modern catamarans.

If a monohull encounters strong winds and rough weather, it will heel and roll significantly—but it will keep righting itself. In dire conditions, the vessel could suffer a knockdown. But a monohull will always right itself after a roll—it has tens of thousands of pounds of heavy keel to ensure that it does. Of course, the rig and anything on deck will sustain serious damage in the process, but the boat will be upright in the end.

In the same scenario, while unlikely, a catamaran can capsize. And the catamaran will then remain capsized, with no possibility of righting itself.

One of the scariest risks at sea is that of a serious hull breach, one that a bilge pump couldn’t keep up with. For example, a boat could be holed by an errant floating object or suffer a stuffing box or through-hull failure.

If a monohull sailboat is holed, it could sink straight to the bottom of the ocean. The crew would be left with only a liferaft and whatever they were able to recover before the sinking.

But a catamaran is filled with foam and is (more or less) unsinkable. If a catamaran experienced a hull breach or capsizes, it would take on water and may become less habitable. However, it will still float. In many cases, not much of the boat is left above the water—but it’s still at the top of the water.

Boaters may be able to perform emergency repairs and get the boat to port themselves. Or, they may have to stay with their vessel until help arrives. In either scenario, the crew maintains access to supplies and can stay with a much larger vessel, increasing the likelihood of being found and rescued.

Some catamaran sailors are so certain of their vessels floating in all scenarios that they don’t even carry a liferaft aboard. This is fool-hearty, to say the least, given the crazy and unpredictable things that can happen to any boat on the ocean. But one scenario is equally scary for the monohull or the catamaran sailor and should convince everyone that any offshore vessel should have a liferaft—the possibility of an uncontrollable fire.

Rigging Safety

When wind speed increases, a monohull will heel over. This heeling motion sheds the excess power of the wind. Monohull boaters should pay attention to the weather and reduce sail to ensure they aren’t overpowering the boat. This is why knowing how to reef a sail is so important for all sailors.

However, on a catamaran, the sails and rigging take the increased load when wind speed increases. Catamarans don’t heel, and therefore, don’t shed excess power. If the weather becomes gusty and a catamaran has too much sail up, all that extra power is transferred to the sails and rigging.

This can cause a dangerous situation. For example, there have been reports of catamarans being de-masted in sudden gusts of wind. In a worst-case scenario, a catamaran could capsize if they are over-canvassed when experiencing extreme wind conditions.

Most monohulls have strong standing rigging. The forestay is connected to a solid structure, the hull. This means that the forestay has a strong, stable platform and gives a monohull better upwind performance. Monohulls also usually have backstays, which provide rigging redundancy.

On a catamaran, the forestay is attached to a crossbeam. Because the platform is not as rigid as a monohull’s hull, the forestay is not as strong. In addition, catamarans usually don’t have backstays, and therefore have less rigging redundancy.

The configuration of the rigging is another rigging consideration. On a monohull, the spreaders and shrouds are perpendicular to the mast. Most catamarans come with fractional rigs that don’t have backstays, and their shrouds are set far back. Because of this configuration, catamaran sailors can’t let their mainsails out all the way on a downwind run because the shrouds are in the way. This leads to less efficient sail shapes when sailing downwind.

However, catamaran sailors can rig their sails to sail wing-on-wing. While monohull sailors can also use this configuration with the help of a whisker pole, catamaran sailors have a nice, wide, stable platform to fly large downwind sails.

There’s no doubt about it–catamarans sail faster. Most articles and comparisons state that catamarans are about 20% faster than a similarly sized monohull. Catamarans have a lower wetted surface area and less drag than monohulls. They’re especially nice to sail in light winds, conditions that heavy cruising monohulls tend to not do well in.

While most cruising cats can’t sail upwind as high as monohulls can, they still win the race. However, if a catamaran has daggerboards and a good sail inventory, it can point as well as a monohull.

Many boat owners believe that speed equals safety, as you might be able to outrun an impending storm. That’s a debatable strategy since weather systems often move faster than any cruising boat can move. It has a lot more to do with planning and the decisions made by the skipper, in the end.

Furthermore, more speed means a rougher ride. A heavy, full-keeled monohull might not move very fast, but the sea-kindly and forgiving ride means a more comfortable and better-rested crew. This only goes to illustrate that the “more speed” argument is far more of a personal preference than many sailors admit—especially when it comes to long-distance cruising.

A faster boat provides a skipper with more options, but it does not ultimately equal inherent safety. That will always come down to the skipper and the crew, and the choices they make. A slow boat in the hands of an experienced and careful crew will always be safer than a fast racer under the command of an inexperienced and green crew. In other words, there is no replacement for seamanship and careful planning.

"Dragonfly" heads downwind in the lead during The Prince of Wales Trophy race sponsored by The Royal Nova Scotia Yacht Squadron, the oldest yacht club in the Americas.

Catamarans have two of everything. While this does equal double the cost and maintenance, it also provides redundancy. If a monohull’s single engine dies and there is no wind, they may have to call for a tow or wait for wind. If a catamaran’s left engine dies, sailors can just continue on the right engine.

Twenty years ago, the majority of boats completing circumnavigations were classic bluewater monohulls. Monohulls are considered safe and capable circumnavigators.

But today, catamarans are establishing themselves as the more desirable choice for many circumnavigators. Catamarans are fast, stable, and capable of crossing oceans. In addition, catamarans can carry significant supplies and offer redundancies. Plus, the extra space that catamarans provide also means that the crew will enjoy watersports like diving, paddle boarding, and surfing.

Since nearly all traditional routes are downwind “milk runs,” catamarans naturally excel along the way. If you take a look at the competing boats for the World ARC rally for the last few years, a definite trend is growing. More catamarans compete every year. Common entrants include Lagoon 450s and Antares 44s.

Shots from a boat trip to Orak Island Bay near Bodrum, Turkey. The Aegean Sea / Mediterranean

One of the most significant decision points when thinking about catamarans versus monohulls is your budget. If your budget is under $100,000, a monohull will be your best bet. If your budget is between $100,000 and $250,000, you can consider a smaller, older catamaran. Catamarans such as PDQs, Prouts, and Geminis will be in your budget. If you have a budget of over $250,000 and can afford higher dockage and maintenance costs, you can consider a catamaran.

Next, consider your comfort level. To try it out, you might want to charter both a monohull and a catamaran. Check out a sailing vacation in the BVI or with a company like Cruise Abaco. Taking classes at our local sailing school might also be helpful. https://cruiseabaco.com

Many folks are attracted to the larger, more comfortable spaces of a catamaran. However, some people feel more seasick on a catamaran and can’t get used to the motion. So a lot of your decision will come down to personal preference.

If you can’t imagine squeezing into a darker, smaller cabin in a monohull, then a catamaran might be calling your name. On the other hand, if you are a traditionalist who loves heeling and boats with a lot of teak, a monohull might be your dream boat. It’s just impossible to know how a boat will make you feel until you’ve experienced both.

Boaters often discuss the compromises involved in boat choices. Whether you choose a monohull or a catamaran, there will be some compromises involved. However, no matter which boat you choose, you can enjoy smooth sailing, beautiful anchorages, and some adventure along the way.

Worried about getting caught in severe storm conditions in your boat ? Visit our guide!

Which is better monohull or catamaran?

Both monohulls and catamarans are popular choices for cruising sailors. Which one is better depends entirely on your personal preferences and which boat is more comfortable and appealing to you. If you are on a tight budget, a monohull is your best choice. On the other hand, if you love large open living spaces, a catamaran will be the better option.

Which is safer catamaran or monohull?

When wondering are catamarans safe, always remember that the primary determinant of the safety of a vessel is its captain, not the vessel itself. Both monohull sailboats and cruising cats have important limitations that their skippers must know and abide by.

Some consider catamarans safer because they are virtually unsinkable. If it has a hull breach or capsizes, it will still float.

Others see the sea-kindly monohull to be the safer bet, as they are better designed to protect their crews from the elements in severe weather. They also cannot capsize, as their ballast provides a righting moment in all conditions. But on the other hand, if a monohull experiences a hull breach, it can sink.

Can catamarans handle rough seas?

Modern cruising catamarans are built strong enough to cross oceans and survive in all kinds of conditions. It might be an uncomfortable ride, but not an unsafe ride. In the end, it is the skipper of the boat who ensures its safety at sea. Good seamanship makes a far bigger difference in how a boat handles rough seas than the design of the boat does.

In extreme conditions, such as hurricanes or sudden gusty winds, catamarans can capsize. Once a catamaran has capsized, it won’t right itself. However, it will still float, although upside down. Heavy seas are more likely to cause maintenance and chafing issues on both catamarans and monohulls.

Matt has been boating around Florida for over 25 years in everything from small powerboats to large cruising catamarans. He currently lives aboard a 38-foot Cabo Rico sailboat with his wife Lucy and adventure dog Chelsea. Together, they cruise between winters in The Bahamas and summers in the Chesapeake Bay.

Sailboat Data Comparison: Monohulls vs. Catamarans

Published by oceanwave on august 18, 2023.

Ah, the sea—a vast body of water that beckons with freedom and adventure. As you stand at the shore, gazing at the horizon, a thrilling question arises: What vessel will carry you into the heart of this blue realm? The decision between monohulls and catamarans in the world of sailing presents an alluring conundrum. It’s a decision that intertwines design, performance, and the very essence of your sailing experience. Imagine harnessing the wind’s force, feeling the salt on your skin, and surfing the waves with grace. But hold on, let’s take a closer look at the fascinating comparison between these two sailing giants before you lift the sails.

Have you ever thought about:

What are the dimensions and stability differences between monohulls and catamarans?

What do the figures indicate about their acceleration, flexibility, and interior volume?

What secrets do the LOA, draft, beam, and SA/D ratios unveil about your chosen path?

Welcome to a voyage of discovery, where sailboat data becomes a compass guiding us through the depths of comparison. Join us as we raise the sails of knowledge and explore the complex waters of design. We will solve the puzzles surrounding the dimensions, stability, and performance of well-known monohulls and catamarans using thorough analysis and practical examples. As we embark on this journey, prepare to uncover the essence of each vessel and find the answer to the question that lingers at the heart of your sailor’s soul: Which vessel will become your gateway to boundless horizons?

Sailboat Data Comparison

Those who enjoy sailing are frequently forced to decide between monohulls and catamarans. Due to differences in design, size, and performance, each variety offers a distinctive sailing experience. In order to assist you in choosing a boat that matches your preferences, let’s check out Sailboat Data Comparison on monohulls and catamarans.

Length Overall (LOA) Comparison

Analysis: Catamarans typically have a longer overall length (LOA) than monohulls. Catamarans are a desirable option for those seeking comfort and roominess due to their additional length, which frequently translates to more interior space.

Stability Comparison

Analysis: Compared to monohulls, catamarans typically have shallower drafts and wider beams. They can sail effortlessly in shallower waters thanks to their exceptional stability, which is a result of this. In some circumstances, monohulls may perform better to the windward due to their deeper drafts.

Sail Area-to-Displacement Ratio (SA/D) Comparison

Analysis: Comparing sailboat data to monohulls, catamarans frequently have a higher Sail Area-to-Displacement Ratio (SA/D). This suggests that catamarans may be able to use the wind more effectively, leading to faster speeds. The specific design and sail plan, however, are equally important in this regard.

Comparing the Experience: Beyond the Numbers

Although Sailboat Data Comparison can provide insights, choosing between monohulls and catamarans requires more than just numerical comparisons. Due to their deep drafts, monohulls may perform and maneuver more effectively during upwind sailing. They provide a classic sailing experience by heeling in response to the wind’s force.

On the other hand, stability and space are valued more highly in catamarans. They can easily venture into remote anchorages and shallow waters thanks to the shallower draft. They are well-liked for cruising and liveaboard situations because of the spacious deck area, which provides lots of space for unwinding and socializing.

The decision between monohulls and catamarans ultimately comes down to your sailing preferences, goals, and the kind of experience you’re looking for. Understanding the data enables you to make a decision that is in line with your sailing goals, regardless of whether you place a higher priority on performance, stability, comfort, or a combination of factors.

Sailboat Data Comparison – Famous Monohulls and Catamarans

Beneteau Oceanis 45: The Beneteau Oceanis 45 exhibits a well-balanced design that places an emphasis on both performance and comfort while sailing. It balances spaciousness and maneuverability with a reasonable LOA of 45 feet. With a 6.9-foot draft, it should perform well windward and be ideal for a variety of sailing conditions. A pleasant experience is guaranteed while on board because of the 14.9-foot beam, which enables a comfortable interior design. The SA/D ratio of 18 indicates a well-balanced sail area to displacement ratio, highlighting the boat’s adaptability to changing wind conditions.

Jeanneau Sun Odyssey 419: The Jeanneau Sun Odyssey 419 is the pinnacle of contemporary design and cruising comfort. It is nevertheless very maneuverable and has a generous amount of interior space despite having a somewhat reduced LOA of 41.6 feet. 5.8 feet of draft, which strikes a compromise between stability and accessibility to shallower seas, makes the boat well-suited for coastal and offshore sailing. A more streamlined design with a narrower beam of 13.9 feet is indicated, making it perfect for people who value ease of handling. A sailboat built for leisurely cruising with a SA/D ratio of 17 is likely, as it will provide a calm and comfortable experience on the water.

Lagoon 450: The Lagoon 450 is proof of the steadiness and roominess that catamarans are renowned for. The 45-foot LOA and opulent living quarters make it popular among liveaboard enthusiasts. It has a 4.3-foot shallow draft, which makes it easy to enter remote anchorages and bays. The large 25.9-foot beam ensures outstanding stability and a roomy deck area for socializing. It has the potential for exceptional speed and performance, especially when using the wind’s energy, as indicated by the high SA/D ratio of 24.

Leopard 44: The Leopard 44 caters to both cruising enthusiasts and sailors by striking a balance between performance and comfort. It offers a pleasing balance of internal spaciousness and maneuverability with a LOA of 42 feet. A balance is struck between stability and access to shallower waters by the 4.9 feet of draft. The large beam of 23.9 feet guarantees stability while underway and at anchor, improving the onboard experience. An adaptable option for various situations, the SA/D ratio of 20 suggests its potential for a great sailing experience.

The strengths and traits of monohulls and catamarans can be clearly seen with Sailboat Data Comparison between the two types of boats. These vessels’ handling characteristics on the water are shown by the size, stability, and performance measurements shown in the charts. But keep in mind that these numbers only make up a portion of the picture; the fun of sailing is in discovering the boat that speaks to your heart and spirit, making each voyage an exciting and fulfilling excursion.

To discover more about various sailboats , yachts, and catamarans, check out this Sailboat Data page. You may discover comprehensive details on different sailboat models and their performance here, making it easy for you to pick the best boat for your requirements with Ocean Wave Sail !

How to Buy the Best Beginner Sailboat?

Sailing is an alluring activity because it offers the possibility of independence on the broad sea and the rush that comes from using the wind. You’re in for a gratifying experience if you’ve made the Read more…

OceanWaveSail updates

How to anchor a boat.

One of the key abilities you must acquire before setting sail on your boat, whether it’s for a weekend getaway or a long-distance trip, is how to anchor a boat. While you’re out on the Read more…

How Fast Does a Cruise Ship Go?

Have you ever pondered “How fast does a cruise ship go?” while standing on a cruise ship’s deck and looking out at the great ocean? Many people have this thought on their minds when they Read more…

Subscribe to our newsletter

Don’t miss new updates on your email.

Terms & Conditions – Privacy Policy – Cookie Policy

About Us – Privacy Policy

New account

Forgot your password?

Lost your password? Please enter your email address. You will receive mail with link to set new password.

Back to login

Privacy Overview

CATAMARANS VS. MONOHULLS

by sailmaui | Oct 27, 2016 | Sailing | 0 comments

What’s the difference?

There are obvious differences between catamarans and monohulls. Most notably, a monohull vessel has only one hull, or main body, whereas a catamaran has two hulls. Because of these two hulls, catamarans typically stay more level than their single-hulled counterparts. They also tend to offer more space, and arguably will go a lot faster. Lets dive in to what differentiates the two types of boats and what makes the Sail Maui vessels so great…

Smooth Sailing

A monohull sailboat, as the name implies, has only one hull, and this hull is generally centered around a heavy keel. A catamaran has two hulls, with the spar and sails in the middle ( amidships in sailor speak). The wide stance of catamarans means they don’t heel much (heeling is when the boat leans while under sail); in fact, a catamaran will rarely heel more than five to ten degrees before you need to reduce sail area. For these reasons, catamarans are especially good for families with young children or older, less agile people because the boats aren’t as susceptible to the wave action and walking around is easier on level ground. While any sailor enjoys the thrill of a monohull heeled over in perfect sail trim, enjoying a beverage on the deck or laying out a buffet lunch is certainly easier with minimum tilt! Seasickness can also be less of a problem on sailing catamarans, & if you’re concerned about feeling uneasy, be sure to read our blog on preventive tips !

Catamarans usually have more space than monohulls, both above and below deck. Though it increases windage, it is nice to have a covered salon area on deck as well as the luxury of spreading out and lounging in the cockpit. Prime seating on Paragon & Paragon II is the netted area in between the hulls called trampolines (no not the bouncy ones) which offer guests a great place to watch for whales and dolphins. This is also the wettest place, as the hulls are always on different points of a wave and sometimes they break under the boat!

Fast is fun!

There’s many benefits to both types of sailboats, and certainly everyone has their preference, but possibly the biggest factor for some in the question of catamarans vs monohulls is that performance built multi-hulled sailboats are able to reach higher speeds. This is due to limited drag and their power-to-weight ratio—in other words, there is a lot of sail power but very little weight and resistance in the water. Depending on the design, catamarans can be up to 25–30% faster than single-hulled boats of the same length. This is of course not always the case, as many of the catamarans you’ll find on Maui are built more for comfort than speed. Sail Maui is the fastest charter on Maui, and we regularly go in excess of 15 knots under sail during our charters in the tradewinds. **This isn’t always the goal, as we take our passengers enthusiasm for fast sailing into consideration before attempting to sail so aggressively!

Sail Maui catamarans sailing during whale watch

Paragon and Paragon II

With Sail Maui, you can discover the beauty of our pacific island aboard one of two gorgeous, high-performance catamarans: Paragon and Paragon II . Both boats were built with carbon fiber rotating wing masts modeled after the America’s Cup winner Stars & Stripes . With this spar technology combined with our fractional rig, we are able to increase our sail area and point higher than traditional multihulls which enables us to achieve higher speeds all the while maintaining comfort and safety.

What’s better than exploring the breathtaking coastline and waters of Maui? Getting to do so on a spacious, fast, high-performance catamaran! Contact us today to learn more about our many different tours we offer through Sail Maui! Happy Sailing!

TULIP – 88ft Sail Yacth from Pedro EA on Vimeo .

Submit a Comment

You must be logged in to post a comment.

Announcements
Maui Activities
Uncategorized
August 2023
February 2023
January 2022
October 2019
November 2018
August 2017
February 2017
December 2016
November 2016
October 2016
September 2016
January 2016
October 2015

Catamaran vs Monohull: Let’s Solve This (we Lived on Both).

This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases. When you make a purchase using one of our links, I may earn a small commission at no additional cost to you. Please read my full Privacy Policy for more information.

The ultimate question – catamaran vs monohull, which is better? This post will help solve the dilemma. It is packed-full of information, by real boaters!

We prefer catamarans, now that we have tried both. But we strongly recommend that you start with a monohull, if possible.

We cruised on a monohull for three years (two of which full-time), and then switched to a catamaran for two more years of sailing and living aboard .

We have years of boating experience and I spent lots of time making this post as helpful as possible, and fully human-generated .

All of our boat-life posts – Boat Life @ No Texting & Tacking

Top Catamaran Pros and Cons.

Here is what we loved the most and the least about our catamaran:

Catamaran Pros

Stable while cruising
Calm at rest
Easy to dock
Shallow draft

Catamaran Cons

Jerk and slam cruising
Cost to buy and maintain
No sail feel

I am covering each in greater detail in this post, so keep reading.

Top Monohull Pros and Cons

Here is what we loved the most and the least about our monohull:

Monohull Pros

Great sail feel
See the crew at all times
Best for solo sail

Monohull Cons

Roll and heel
Small space

Now that you have seen the short version of it, read below. Each of these pros and cons are discussed in much greater detail.

And I have a few more features too!

Monohull vs catamaran – are they even comparable?

Are we really comparing apples to apples ? Apart from the number of hulls, the two sailboats are, actually quite different.

A monohull is a sailboat with a single hull , while a catamaran has two – imagine Pirates of the Caribbean versus Moana (but nicer).

There is yet another kind – a trimaran – a sailboat with three hulls (which is where we might be headed next, if we venture out into the big blue again).

Since few people are sailing trimarans, I will focus on the two most common sailboats – cats and monos.

19 Things to Consider – Know Before You Compare.

Below are a few main features which will define the performance of a boat, as well as the overall cruising experience .

I am offering simple explanations and descriptions, so that anyone can understand and decide what matters most.

It is the sailor that makes mistakes, not the boat.

kids in the front of the boat while sailing in the DR

Monohulls can handle bad weather, if steered well – where each larger wave must be surfed. It really is up to the captain to make or break the journey in poor weather.

Catamarans are like small moving islands. They, too, can handle bad weather safely, but are a bit harder to yield to the wishes of the captain, as they are slower to respond.

We have made mistakes on both cats and monos and the weather was not even that bad – poor choices will affect safety far more than the number of hulls.

Both catamarans and monohulls can sail perfectly fine out in the ocean, around the world, more than once.

Boater’s Tip : The best favor you can do yourself, is to take sailing classes , practice and learn everything you can about your boat.

2. Stability

Monohulls have a heavy bottom, which constantly pulls the boat down. Catamarans are very hard to flip over.

A boy on the bow of a sailboat, with the sea horizon in front

If a monohull flips, it will right itself fairly quickly (unless it starts taking in water). If it takes in water, a monohull will sink quickly.

It is likely the mast will break, before a cat capsizes . Once they flip over, however, they stay that way and turn into a raft.

Let’s be real, though. If the boat is truly in such daring conditions that it flips over, the injuries and damage are the real danger, for those still conscious.

Boater’s Tip: Avoid bad weather in the first place – use Predict Wind App , have a guide during longer passages. Avoiding a major storm is perfectly doable.

Monohulls are far more affordable than catamarans.

Our family on the Grand Soleil sailboat in Miami

There are also a lot more of them to choose from , making it a buyer’s market in almost all cases.

It is not unheard of to offer half of what a monohull is listed for and be able to get a great deal.

Catamarans have always been more expensive , but especially in the last few years. With more people able to be location-independent , catamarans have become the first choice for a floating home, for many.

Buying a catamaran? Read this: Buying a Catamaran in 10 Steps – Complete Guide.

When we first moved on a sailboat , we still had our house and its large mortgage , and we were not sure if that boating thing was going to work at all . So, we only looked at monohulls and were able to find our 1985 Grand Soleil 39 at a very good price.

Once we decided to switch to a catamaran, low-balling went out the window . It was a hot cats’ market out there. We looked hard , made tons of calls, but most of all waited as long as it took.

Patience can pay off and is a good financial habit to adopt.

For more good financial habits: 12 Practical Ideas to Spend Less

The prices for cats have been staying high due to many people being willing to finance a boat , kind of like having a mortgage on a home.

It sort of makes sense, if the boat is to become your new home.

4. Resale value

Flipping a fixer-upper boat is a risky business. Few venture into it.

Sunset on the water while sailing the Mona Passage

Monohulls and catamarans are like cars , they lose their value over time.

Sure, one can buy a fixer-upper of a boat, update all the systems and end up with a beautiful boat, but the cost of boat upgrades and repairs is very high. Unless you do most of the work yourself, return on investment is zero.

Even catamarans do not hold their value. You have to rely on a crash in the luxury items market, or a hurricane leaving lots of boats with reparable damage, to snag a good deal on a cat.

We lost money selling our monohull, but made money on our catamaran – we did almost all the work ourselves and it was a good market, so we took advantage . It did cut our cruising short, unfortunately.

Boater’s Tip: Sell your boat “by owner” and do the listing right – here is a whole post about it: How to Sell a Boat by Owner, the Honest Way

5. Maintenance

Plan for around 10% of the boat value for annual maintenance cost.

Monohulls only have one of each to run and fix – one engine, one hull to paint, one AC unit.

Catamarans cost more to maintain and expenses add up quickly.

In addition, it costs more to haul out a catamaran , as few boatyards are equipped with a sling to accommodate the width of a catamaran.

There are even fewer options in remote island countries .

Boater’s Tip: If sailing internationally, do just the urgent repairs at the US/other developed country. Cheaper destinations offer a lot cheaper services. Buy spares, they are hard to find in remote places.

Both or our boats have been designed with speed in mind.

We have sailed at 11 knots downwind on our 42 ft Privilege catamaran. We usually reached 7-8 knots into wind, on our 39 ft Grand Soleil monohull.

That was in around 15-20 knots of wind.

Catamarans sail faster, with all other things being equal . A few factors contribute to higher speed in catamarans:

Hull design and shape – the less of the hull in the water, the less drag.
Lighter weight overall – aided by proper load distribution and boat material.
The hull material, in performance cats – carbon fiber, or an inner foam layer.
Larger sail surface area, calculated as the beam : length ratio.

A 50 foot sailing catamaran (and smaller), with proper hull and body design, can exceed 20 knots of sailing speed in 25 knots of wind.

More subjective factors that have major influence on the speed of both monohulls and catamarans:

Boat load and distribution – lots of cargo means slower speed.
Proper sails management – how much wind the sails can “grab” (I am a master of spilling wind on monohulls, because I hate going fast , call me for tips).
Crew experience – wind speed and direction changes almost constantly. Sails have to be adjusted at the same rate, if you want to go fast.
Cabin and cockpit design – the larger, higher and boxier that cabin / cockpit, the more it will slow down the boat.

Boater’s Tip: To increase boat speed during sail, buy folding propellers . Put the boat on reverse, so they don’t spin, to decrease drag. Just make sure you take the boat off reverse when starting the engine!

7. Wind feel

If you are starting new, with no sailing experience , start sailing a monohull.

A monohull allows you to be the one sailing the vessel. You can really feel the wind and gain a perfect understanding of how the wind and the sails work together.

Our monohull did not have an autopilot and even though overnight passages were hard, we became very familiar and comfortable with our boat. This is coming from a mama who never grew fond of sailing .

If going out for a day sail, for the sake of sailing, I would pick a monohull.

Catamarans are fast, but they kind of sail as they wish . It is almost impossible to feel the wind and its pull on the mast.

That is why catamarans are sailed by numbers – by reefing the sails following the manufacturer’s recommendations. With experience it becomes easier.

Boater’s Tip : Try sailing a monohull and a catamaran, to see the difference. Both will likely make you sick , so don’t let that be the determining factor.

8. Performance

I am discussing performance in terms of how the boat sails at different angles to the wind.

a boat traveling into the sunset with a child on the bow

Monohulls sail great into the wind , making it easy to start a passage when the wind is blowing almost in your face. They achieve this by heeling over (leaning to one side).

Monohulls do not sail well downwind . You can have a spinnaker up, or spread the sails to grab the most wind possible, but it is hard for light apparent wind (true wind speed reduced by your boat’s speed, when sailing downwind) to move a heavy monohull.

Catamarans do not sail into the wind . Even performance cats need a winder angle into the wind to be able to move.

Downwind, catamarans will give you the most comfortable ride ever , while flying a spinnaker. That glass of wine they are talking about not spilling aboard – it is during downwind sailing.

Both cats and monos suck when sailed into beam wind (wind coming from the side). I know, I am not terribly technical here, but it feels like choosing between two evils – rolling and puking, or being jerked and puking.

Feeling sick? This might help: Seasickness Sucks – 21 Tried and Tested Tips to Stop it.

Boater’s Tip : Wait for a better weather window. Nothing can ruin a great adventure quite like sailing, scheduled by your calendar.

9. Maneuverability

When discussing maneuverability, I am featuring here behavior under sail .

a man at the helm of a sailboat, with blue green water and a city behind him

Monohulls are very easy and responsive to tacking (changing the direction of the boat, while sailing upwind). All those movies where teams work in excellent synchronized movements to flip sails to the other side of the boat, show you examples of tacking.

Catamarans are hard to tack . They are very slow to respond , so you need lots of momentum and speed, as you prepare to tack. Once you wait a bit too long, the opportunity is gone. It is not a big deal, but in stronger winds, you can easily rip a sail when it starts flopping uncontrollably in the wind.

We are not fans of jibing on either boat (changing the direction of the boat during downwind sailing). True downwind sailing is never a good idea, because accidental jibing can hurt both the boat (done it!) and the crew , in stronger winds.

Boater’s Tip: No texting and tacking – teamwork pays off best when working together to sail against the direction of the wind 😉

10. Docking

The best part about docking is pushing off the docks. Marinas are expensive and the adventure is never, ever the same , if the boat is just tied in place.

Still, when considering docking keep in mind:

Catamarans are super easy to dock and can rotate a full circle on a very small radius. This is because catamarans have two engines and it is a breeze to control the boat, while using the engines to maneuver into tight spaces.

Monohulls are such a pain to dock ; it was our captain’s biggest nightmare. We were all threading very carefully when it was time to dock our monohull . That momentum the boat gives you while tacking, works quite against you when docking.

When we purchased our monohull back in 2017, we found the tiniest, cheapest marina on the Chesapeake Bay, and sailed on the weekends, practicing docking .

Only the marina owners laughed at us (even though they never admitted it).

Boater’s Tip : We like casting the spring line first, when docking. Some marinas have ridiculously strong currents – call ahead and make sure someone is there to help.

If you want to jump off and swim to the beach, you need a catamaran.

The draft of the boat is the distance between the waterline and the end of the keel. This defines how deep the boat can go without hitting bottom.

Catamarans are lighter and have a shallower draft , compared to monohulls. From around 3ft for a cat under 40ft, to around 6ft for larger catamarans. Our Privilege 42 drew 3.5ft.

Catamarans can go in shallower water. They can even be “beached” , meaning, you can actually take the boat all the way to the beach, then use the high tide to bring her back into the deeper water. Just ensure the access is free from any rocks and coral.

For the times you “beach” the boat accidentally, make sure you have towing help .

The photo above is from us sailing the Great Bahama Bank – an amazing shallow plateau that only a catamaran can handle.

Monohulls have a longer keel, which helps stabilize the boat . The keel must go fairly deep, in order to “hold” a monohull upright , and to counter the wind force on the sails.

The most common keel types you might see are:

full-keel – a keel looks like a natural extension of the keel. It provides great stability, but makes the boat heavier and slower.
fin keel – a keel that looks like a fin, attached to the bottom (the most common kind), for stability without sacrificing speed.
lifting keel – An adjustable keel to change the draft of the boat, if needing to navigate shallow water. They are convenient, but not as sturdy.

Our 39-foot monohull drew 6 feet – quite a lot for such a small boat. It did limit our anchoring options.

We have seen both catamarans and monohulls stuck, by running aground . It is possible to free up the boat, if you are careful with the engines and don’t end up digging yourself deeper.

We had a Boat US membership the entire time we were coastal sailing the US. They even rescued our dinghy once.

Boater’s Tip : We always set our depth instruments to show smaller than actual depth, giving us a cushion with the uneven sea floor.

12. Cruise comfort

Comfort at anchor matters most, but a miserable passage can ruin the entire adventure very quickly.

So, let’s talk about passages – seasickness, heeling, slamming, rolling, keeping watch…

Seasickness happens both on catamarans and monohulls . We found it worse on catamarans, contrary to popular belief. Anything but downwind sailing makes the catamaran turn and twist in ways that only make sense to a catamaran.

The jerking of the catamaran almost feels like riding a tractor on a very bumpy road, but without the chance to stop and rest. On top of that, waves slamming under the boat (even with higher clearance), make the entire boat shake.

Seasickness on a monohull is an absolute given in beam winds . The entire boat rolls from side to side, with every single wave and such passages are downright miserable.

Heeling is a must on a monohull, if you wish to go anywhere. While this is great for speed, it makes life at an angle uncomfortable .

Personally, healing always freaked me out . I feared a kid might fall out of the boat and chased everyone below deck (where seasickness eagerly awaited).

Sleeping on a catamaran during passages is hard, because the slamming of the waves below is too loud and disturbing. I never got used to it.

Sleeping on a monohull during passages is actually a bit better, once you fall asleep. The movement of the monohull is predictable, which can, actually, rock you to sleep .

Boater’s Tip: Buy a Reliefband ! All of us got seasick, every single passage. We tried everything . Nothing worked like Reliefbands, and they come with zero side effects.

13. Comfort at anchor

The art of anchoring must be learnt along with the art of sailing. Otherwise damage to other boats is quite possible. Anchoring is simple math and common sense .

Boat anchored at Great Harbour Cay, Bahamas

Catamarans behave much better at anchor, compared to monohulls. They are more stable and not affected as much by a wrap-around swell (when the waves are coming from the side, while the boat is facing into the wind).

Considering cruising is 99% standing still , it is not hard to understand why this single advantage can negate everything else.

Cats tend to “sail” on their anchor , meaning the boat may move about, being pushed by the wind. Just something to keep in mind in a tight anchorage.

Monohulls will roll a lot more at anchor , if the anchorage is not super calm. We have been seasick at anchor a few times, which the kids loved , because those “wind days” meant “no school aboard”.

Monohulls can counter wrap around swell by bridling – dropping a second anchor off the bow, in order to keep the boat facing into the waves, rather than into the wind.

No matter what boat you end up anchoring, keep in mind that with the changing wind, the boat position will also change.

Oh, and watch the boat behind you, please ( yes, I’m talking to you, St. Thomas guys, on that chartered boat ).

Boater’s Tip : a good rule of thumb, for normal sea conditions, is 5:1 – five feet of chain for every foot of depth.

14. Indoor space

The indoor space is a huge factor for many, when shopping for a sailboat .

It mattered a lot to us, as well. The most important things to keep in mind are:

Ceiling height

I have a popular post all about space on a boat: Why We Never Missed Space, While Living on a Sailboat.

Catamarans have more indoor, living space , compared to monohulls (for same length boats). This should come as no surprise. The salon and hulls together make the cat feel like a cute apartment on the water.

Catamarans offer a much better view and lots of light . Monohulls offer no view, but they are not dark, because the hatches act like skylights. The photos, from our boats above, prove just how bright a monohull is.

If you want more of a performance cat, then the view will be sacrificed a bit, because the cabin must be curved and relatively low, to avoid extra windage.

a 6'4" man inside a 1985 Grand Soleil 39

Only certain model catamarans and monohulls will have ceilings suitable for tall people. Joe is 6’4″ and the only catamaran under 43 feet, which would accommodate him, was the Privilege.

Catamarans offer a perfect separation of living space and private cabins. Monohulls with a center cockpit do have a nice aft cabin, but everything else is tight, or a bunk-style closet. Again, focusing on boats under 45 feet.

With three teens aboard , privacy was high on our list. We loved the separate heads (bathrooms) for each hull, although having four of them aboard is excessive (we turned one into the laundry room , and another into a shower room).

Boater’s Tip : Do consider catamarans with the galley below – I loved it! You get a ton more counter-space, and the salon above is more spacious.

15. Outdoor space

Considering most boats sail in warm climates, the outdoor space is a crucial factor, when shopping for a boat.

Catamarans offer much, much better outdoor space, compared to monohulls . The cockpit was my favorite space, on our Privilege .

Unlike the patio of a house, the outdoor space of an anchored boat provides constant breeze and zero bugs (occasional bee swarms might happen in some places).

Another point for the catamaran is the bow trampolines , which are a favorite hang-out spot. It is easy to send the kids and their friends to the front, while the adults hang out in the cockpit.

With older kids , however, we just left them all boat-alone, while the adults gathered on a different boat.

Walking on deck during passages is easier on a catamaran , because the boat does not heel.

16. Sustainability

Sustainability is all in the hands of the crew , much like safety. It is never the boat’s fault, if the crew wants to motor, instead of sail.

a sailboat with solar panels and a wind generator

Both catamarans and monohulls have plenty of surface area to attach solar panels and wind generators.

You will like this post: This Sustainable Lifestyle is the Fairest of Them All. 10 Reasons Why Living on a Sailboat Matters.

A few boating families we met swore by their solar ovens too. I bought a super cheap one and never got it to cook anything, but granola.

As far as the cats having two engines – many motor using only one of them, and the one engine aboard a heavier monohull uses plenty of diesel too.

Boater’s Tip : Forget the generator. They are super noisy and use lots of diesel. When you are at anchor, there is a constant breeze. Buy wind scoopers instead.

17. Fun and entertainment

Our kids were happy, as long as there were other boatkids . So, that should be on the top of the priorities’ list.

Lots of kids on the bow of a catamaran, in the Dominican Republic.

I have an excellent post on socializing the kids while on the water:

Sailing and Socializing Kids – 8 Ways to Find Friends on the High Seas.

Having said that, our catamaran was much more comfortable to invite company over, compared to our monohull.

Catamarans have an excellent division of space – both indoor and outdoor. Not to mention that on a hot day, a swim platform can go under the trampolines for shade!

Monohulls are best for swinging and playing catapult games , but they are not great for entertainment .

We have had family visit aboard our Privilege , and it did not feel crowded at all.

Boater’ tip : Be the party boat, at the anchorage, if you have kids, this will make them enjoy boat-life more.

18. The looks

Beauty is in the eye of the beholder. Captains are not the only beholders.

Both monohulls and catamarans can look amazing, or ridiculous. We liked both of our boats, the captain actually loved them both , which put me in a perpetual love triangle.

To be perfectly honest, Graceful was a better suited name for our Grand Soleil Monohull. We were not able to come up with a better name, and everyone knew us as the SV Graceful crew, so we kept the name for our catamaran .

There is also some romance surrounding the looks of a monohull , from paintings and movies, so I’ll give the beauty point to the monohull.

Boater’s Tip: Pick the one, which will make your wife less jealous.

19. The crew

Unless you are solo-sailing, you must consider the wishes of the crew .

kids at the bow of a catamaran, making funny faces

When we first looked at boats, catamarans were out of the question, because they were expensive, and our captain thought they were ugly .

Three years later, two of which full-time living aboard our monohull, the boatkids spoke! They wanted to continue sailing, but on a catamaran . And we listened.

Check out the full story of our crazy adventures

In the end, we are the parents and there are decisions as well as consequences, which are not OK to dump on the kids.

But the crew is a true team on the water . So, everyone’s opinion matters (which is also why we returned to land life).

What is the right boat for you ?

Now that we have talked about the differences between the two boats, let’s see which one might be right for you, at this stage of your adventure .

Sailing with family

We believe that a catamaran is the best choice for a family , especially when traveling with older kids .

Teens will love the clever separation of space with cabins, providing plenty of privacy.

Our favorite Privilege, actually has a fully enclosed cockpit, for added safety.

A monohull might be best for couples with toddlers , requiring help and constant supervision (got for one with a centyer cockpit).

When the need arises, for both people to be handling the sails, it usually requires one’s full attention and a kid on a catamaran can run out of sight quickly.

The best thing you can do, if no other factors are at play, if to hop on both sailboats, enjoy a day-sail trip, then discuss it with the crew.

Sailing as a couple

A monohull would be the better choice for a physically fit couple , sailing without kids (or with young ones).

Owning a monohull is cheaper , and a couple might have the budget to stop at marinas more often and explore places in-land.

A retired couple might find a small catamaran more comfortable . The acrobatics and strain to sail at an angle, climbing in and out of the salon, as well as climbing on deck do require agility and a healthy body.

Sailing solo

It is hard to beat a monohull, if sailing solo .

If the boat is rigged for solo-sailing, the smaller cockpit of a monohull provides great space to handle the lines. Especially, if the instruments fail.

One person can solo sail a catamaran that is no bigger than 40 feet , with a small cockpit and rigged for solo sailing. Hop in the cockpit of a desired cat and try grabbing the lines on either side, alone, from the cockpit. Can you do it?

Sailing lifestyle

If planning to do lots of cruising, then either boat would be fine , depending on your preference, considering all the things mentioned above.

a man on a sailboat wearing a long sun shirt, short and a hat, swinging on a swing

If planning to live mostly at marinas and travel to explore land, maybe a monohull is better, offering a lot more options for marinas at a lower cost.

If you need to haul out the boat frequently, during hurricane season, a monohull would be easier and cheaper.

Catamaran at a mooring field, in an expensive location , will grant you those million-dollar views , from your living room, for a small fraction of the cost that people pay ashore.

We loved Coconut Grove, Downtown Miami, USVI, from our quiet, private and affordable boat.

Speaking of waterfront living, I have a great post about living on a boat:

Can you Live on a Boat? Yes, and Now is the Right Time

Just chartering for vacation?

A catamaran will be the better chartering option , if you are just sailing out for a week, or so. Here is why:

Great views from the salon.
Better separation of space, if diving the cost with another party.
Larger space for entertaining.
Easier to get in and out of the water.
Catamarans are a lot more comfortable when anchored, than monohulls.
Motoring between anchorages can get you there faster.
You can anchor closer to the beach, because of the shallow draft on a cat.

What other boaters say.

Still uncertain? Check out the praises sung to both monohulls and catamarans below – all by our dear friends, who have sailed extensively and know what they are talking about.

Praises to the mono

SV Silent Thunder , “Mono- smoother ride as she cuts through the sea.”

SV Lady of Mettle dad, “I prefer monos. I never seen the need to go over the same wave twice. Mono’s are a more predictable swaying motion. Cats feel unpredictable and “twitchy” to me. Monohulls handle weight better than cats. If blown over, monos stand back up. Cats don’t.”

SV Lady of Mettle mama , “When we sailed a Cat with family in Key West, I didn’t like that the helm was outside and upstairs. In foul weather that would not be great along with always having to be outside to helm. In comparison we have an inside helm to get out of sun or weather. I also did not enjoy the bow, outside on the deck was not as enjoyable to watch he dolphins play, and the smallest wave splashes over, keeping you in the back while sailing.

Overall sailing, I think a Monohull, but staying still, probably a cat just because of the open galley and living room areas.

My boat has plenty space however, a cat would not hold our things. Also, cats all look the same. Also 2 hulls to clean and scrape…booo The Cat has to go overboard.”

SV Traveler, “I would like the additional living space on a cat but I really like that my husband can captain our monohull by himself and if we need dock space or a haul out it seems easier to find with a monohull.”

Praises to the cat

SV Half Dozen , “CAT allows for view and comfort at anchor.”

SV Varekai , “…I can honestly say that (monohull) it’s not as comfortable. Cockpit, salon, berths…we all feel less comfortable on the mono. I also miss being up where I can see out. The sugar scoops were nice for when docked and sailing. I’m not a fan of boarding on the side as much.”

SV Mojo , “Straight and smooth sailing no healing. I would hate having to be angled while moving. Loved the space inside and out. There’s a compromise in everything but that worked for us for a bit anyway, because then I needed more space. If you give a pig a pancake…right?!”

SV Colibri , “We love the room, light and layout of our cat. We rarely sway at anchor. It’s nimble and has enough space and privacy for a family with two teens (and a cat!). It can be single handed. The mast is 63″ so we can take the ICW. All in all, a dream boat (FP Lipari).”

SV Snowless , “Love the cat. Would definitely take the cat over a mono for most of the time. Yes the mono is great for going to to the wind aka, getting from us to Caribbean, but that is only a small portion of the travel. After that it’s mostly beam or downwind sailing. The trade off for being at anchor which is where you spend most is your time is unmatchable in my opinion.

However, when going upwind and I look ahead and see a mono healed over cutting through the waves with this mast holding steady, vs me and my mechanical bull that I am riding, I am envious.”

SV Aquafox , “I liked all the different living spaces we had on ours. I really liked the stability of it vs the movement you can get on a mono. Monos are awesome on speed and price though.”

Tours of our boats

Below are links to our boat tours, as well as episodes on Youtube, showing our boats, enjoy:

Our Catamaran Tour – 1995 Privilege 42

Our Monohull Boat Tour – 1985 Grand Soleil 39

Our 1985 Privilege 42 For Sale Video

Our first few YouTube episodes feature our monohull

In the end, I propose that Catamaran vs Monohull Battle be renamed to Sailor vs Sailor Battl e.

It really matters most what kind of cruising the sailor wants to do , and what matters most to the crew. And, just like in real battles, sides can be changed.

So, let’s focus on the crew and leave the poor cat and mono alone .

Links to what we recommend in this post

Reliefband – excellent against seasickness. Zero side effects, we loved them.
Sailing classes via the American Sailing Association
Predict Wind – to always select the best possible weather window.
Folding propellers – to help increase boat speed and protect the propeller.
Boat US Membership – for peace of mind, while sailing the US coast.
Wind scooper – for extra breeze inside the cabins – a must aboard!

Helpful posts about boating life

All of our Boat Life Posts

Buying a Catamaran in 10 Steps – Complete Guide.

Pros and Cons of Living on a Boat. By Experienced Boaters.

The cost of living on a boat for a family

How to Sell a Boat by Owner, the Honest Way

Can you Live on a Boat? Yes, and Now is the Right Time

Mina is the creator and owner of No Texting and Tacking. She is an award-winning author, a philologist, a registered nurse and a native Bulgarian. She turned into a travel blogger in 2018, when her family of five decided to sail and travel the world.

The Ultimate Guide to Choosing Between a Sailboat or Catamaran for Your Sailing Adventures

C hoosing between a sailboat and a catamaran for your sailing adventures is a significant decision that depends on various factors, including your sailing preferences, experience level, budget, and intended use. Here's an ultimate guide to help you make an informed decision:

1. Sailing Experience:

Sailboats: Typically require more skill and experience to handle, especially in adverse weather conditions. Ideal for sailors who enjoy the traditional feel of sailing and are willing to invest time in learning and mastering the art.
Catamarans: Easier to handle, making them suitable for beginners. The dual-hull design provides stability, reducing the learning curve for those new to sailing.

2. Space and Comfort:

Sailboats: Generally have a narrower beam and less living space. However, some sailboats may offer comfortable cabins and amenities.
Catamarans: Wider beam creates more living space. Catamarans often have multiple cabins, spacious saloons, and expansive deck areas, providing a more comfortable living experience.

3. Stability:

Sailboats: Monohulls can heel (lean) while sailing, which some sailors enjoy for the thrill but can be discomforting for others.
Catamarans: Greater stability due to the dual hulls, providing a more level sailing experience. Reduced heeling makes catamarans suitable for those prone to seasickness.

4. Performance:

Sailboats: Known for their upwind performance and ability to sail close to the wind. Some sailors appreciate the challenge of optimizing sail trim for efficiency.
Catamarans: Faster on a reach and downwind due to their wide beam. However, they may not point as high into the wind as monohulls.
Sailboats: Typically have a deeper draft, limiting access to shallow anchorages and requiring deeper marina berths.
Catamarans: Shallow draft allows access to shallower waters and secluded anchorages, providing more flexibility in cruising destinations.
Sailboats: Generally more affordable upfront, with a wide range of options available to fit different budgets.
Catamarans: Often more expensive upfront due to their size and design. However, maintenance costs may be comparable or even lower in some cases.

7. Mooring and Docking:

Sailboats: Easier to find slips and moorings in marinas designed for monohulls.
Catamarans: Require wider slips and may have limited availability in certain marinas, especially in crowded anchorages.

8. Intended Use:

Sailboats: Ideal for traditional sailors who enjoy the art of sailing, racing enthusiasts, or those on a tighter budget.
Catamarans: Suited for those prioritizing comfort, stability, and spacious living areas, especially for long-term cruising and chartering.

9. Resale Value:

Sailboats: Generally have a more established resale market, with a wider range of buyers.
Catamarans: Growing in popularity, and well-maintained catamarans often retain their value.

10. Personal Preference:

Consider your personal preferences, the type of sailing you plan to do, and the kind of lifestyle you want aboard your vessel.

In conclusion, both sailboats and catamarans have their advantages and disadvantages. Your decision should be based on your individual preferences, experience level, budget, and intended use. If possible, charter both types of vessels to experience firsthand how they handle and to help make a more informed decision based on your own preferences and needs.

The post The Ultimate Guide to Choosing Between a Sailboat or Catamaran for Your Sailing Adventures appeared first on Things That Make People Go Aww .

Choosing between a sailboat and a catamaran for your sailing adventures is a significant decision that depends on various factors, including your sailing preferences, experience level, budget, and intended use. Here's an ultimate guide to help you make an informed decision: 1. Sailing Experience: 2. Space and Comfort: 3. Stability: 4. Performance: 5. Draft: 6....

Catamaran Vs Monohull Cost

Last Updated by

Daniel Wade

June 15, 2022

Catamarans and monohulls are completely different sailboats and thus sell new and used at widely different prices.

A new cruising monohull starts around $200,000 to $250,000, while a new cruising catamaran starts at $350,000 and sometimes exceeds $500,000. Used catamarans and monohulls run between $10,000 and $200,000 or more.

In this article, we’ll cover the average costs of monohulls and catamarans, along with why these sailboats differ in price. We’ll also cover average costs of used monohulls and catamarans, repair, maintenance, and docking costs, and the factors that contribute most to sailboat pricing.

We sourced the information used in this article from careful analysis of the new and used sailboat market.

Table of contents

‍ Average Monohull Cost

The average cost of a new cruising monohull in the 30-foot to 40-foot range is between $200,000 and $250,000. This is for a fully outfitted but relatively basic vessel, with few additional luxuries that don’t normally come on modern sailboats.

This is a stark increase from equivalent boats built during the 1970s and 1980s, even when they were brand new. Inflation aside, why do modern monohulls cost so much more than their ancestors?

For one, the cost of materials and labor was generally cheaper back then. Additionally, sailboats built in the 70s and 80s came with less complex systems and lower-quality outfitting.

Since the market changed and now prefers luxury and technology, a standard sailboat of today is more in line with a luxury sailboat of yesteryear. Recent technological developments have brought the prices of standard monohulls much closer to standard cruising catamarans.

Average Catamaran Cost

The average cruising catamaran costs much more than a typical cruising monohull. Additionally, popular catamarans are larger than popular monohulls—between 40 and 45 feet versus 30 to 40 feet. So why compare the prices of two different-sized boats?

We chose to compare unequal sizes because of the popularity of these vessels for the same activities. You’re likely to see couples and single-handers sailing both types of these vessels to the same locations, on the same sea routes, and for the same distance. In other words, their uses are roughly equivalent.

The average cruising catamaran costs between $350,000 and $500,000 new, depending on the size, speed, and level of interior fit-and-finish.

Catamaran Vs Monohull Repair Costs

Catamarans can cost significantly more to repair if there’s structural damage to any part of the vessel. However, normal everyday repairs (such as fixing leaks, electrical systems, and rigging) cost about the same for monohulls and catamarans.

The cost differences between upgrades are minimal as well because systems that work on monohulls also work on catamarans in most cases. All other categories, such as interior repair, hull work, and sail replacement, are usually in line with monohulls.

Catamaran Vs Monohull Maintenance Costs

Maintenance cost varies between vessels based on age, size, and hull construction material. But for typical fiberglass sailboats, catamaran maintenance usually costs a bit more than monohulls of the same overall length.

This is due to the increased strength requirements and more complex engineering. Catamarans need to have structural support between the hulls, which adds an extra system to maintain.

Inspections and repairs also cost more, as the steps involved are more intricate and time-consuming. Routine tasks such as bottom cleaning may cost less on catamarans, as multi-hull sailboats have shallower drafts and require less dive time to clean.

Cost to Dock a Catamaran

Catamarans are somewhat pricey to dock in many locations, as they’re much wider than the average monohull sailboat or powerboat. Catamaran slip fees usually cost about twice as much as other vessels of the same length, normally equating to about $10 to $30 per foot plus additional fees.

Cost to Dock a Monohull

Monohulls cost much less to dock than catamarans due to their narrower beams. In some cases, a monohull is 30 to 50% narrower than a catamaran, allowing multiple monohulls to be moored side-by-side, thus saving money on slip fees.

Monohulls usually cost somewhere between $5 and $15 per foot of length to dock, plus a flat marina fee.

New Vs Used Catamaran and Monohull Prices

You can buy a used catamaran for the price of a new monohull in many cases, as long as your creature comfort expectations aren’t through the roof. But here’s the good news—a well-equipped used catamaran is probably a much better value than an entry-level new monohull.

Based on what we know, a brand new cruising monohull in the 30 to 40-foot range costs about $200,000 to $250,000. A used 40-foot catamaran, built during the 2000s, is much larger and more seaworthy. Plus, catamaran accommodations are usually more comfortable.

Why do Catamarans Cost More?

Catamarans cost more primarily because they’re more complex. A well-performing catamaran requires stronger materials, more intricate engineering, and more careful design.

Conversely, monohulls are fundamentally simple and relatively easy to construct. A basic boatyard with fiberglass molding material and some plywood for lofting can build a full-size monohull.

Catamarans require advanced equipment, skilled labor, and careful construction due to the tolerances and strength required to join two hulls across a wide beam.

This means that there aren’t a whole lot of boatyards willing or capable of building full-size rising catamarans and even fewer located in the United States.

Many well-known catamarans are built by specialized yards in Europe, and only a limited number of hulls are produced annually.

Compare that to a company like Catalina, which built thousands of simple and mass-produced monohulls in the United States over a period of 30 years.

Are Monohulls a Better Value?

So, are monohulls a better value for cruising than catamarans? The answer depends on what you’re looking for and what you consider worthwhile.

If your primary concern is comfort and seaworthiness, then a used catamaran is the best value. This is especially true if you spend most of your time cruising, as catamarans offer superior accommodations and stability at a given length.

But if you’re an occasional sailor or budget-minded cruiser, virtually any monohull is a better value. You can buy a somewhat recent used voyage-ready monohull for less than $50,000—far below the cost of even the shoddiest late-model used cruising catamaran.

Factors that Influence Catamaran and Monohull Pricing

So, what separates a $350,000 catamaran from a $500,000 catamaran, and what benefits do these vessels have over a $250,000 monohull? These days, with build quality remaining mostly consistent across the line, it has to do with handling characteristics, speed, and the quality of the accommodations.

A $500,000+ catamaran is an automated and fully-loaded vessel with top-of-the-line interior furnishings, electrical and mechanical systems, radar, electric winches, air conditioning, and the works.

This is not always the case, but these large and fast vessels tend to be some of the best the boatbuilding industry has to offer. The level of fit and finish is over the top, and the sailing characteristics are exceptional.

A $350,000 catamaran is a solid cruiser. It’s much faster than an equivalent monohull, and it also has miraculous handling characteristics in rough weather.

These vessels have a basic but comfortable interior finish and reliable behind-the-scenes systems. They are still luxury sailboats when compared to any common 20th-century monohull cruiser.

But they’re not earth-shattering sailing yachts. They will last decades with proper maintenance and provide tens of thousands of miles of trouble-free cruising in almost all typical conditions.

The same can be said for a $250,000 monohull. A vessel like this is well-outfitted and probably not a base model. You get many of the same systems found on much pricier catamarans, such as advanced electrical systems and creature comforts.

But you won’t get the speed and rough-water comfort of a catamaran, and you’ll have less open space in the cabin for entertaining guests, living, and moving around.

Used Monohulls and Catamaran Pricing

Used cruising catamarans are still quite pricey, as their desirable sailing characteristics and spacious interiors make them highly desirable. Plus, since catamarans have only recently become popular, there are fewer to choose from on the market.

You can find a nice used catamaran for between $120,000 and $350,000, depending on the size, manufacturer, and accommodations. This varies somewhat by age as well because late-model catamarans don’t depreciate much when they’re still fairly new.

Used cruising monohulls are significantly less expensive. These vessels, which have been constructed from fiberglass and largely unchanged since the 1960s, can be found in good condition for between $10,000 and $150,000.

Monohull pricing depends mostly on the age of the vessel. Anything less than ten years old probably won’t sell much lower than $100,000—while anything 20 or more years old could fall anywhere on the spectrum. A good used cruising monohull averages around $25,000 across the board.

I've personally had thousands of questions about sailing and sailboats over the years. As I learn and experience sailing, and the community, I share the answers that work and make sense to me, here on Life of Sailing.

by this author

Financial and Budgeting

Most Recent

What Does "Sailing By The Lee" Mean?

October 3, 2023

The Best Sailing Schools And Programs: Reviews & Ratings

September 26, 2023

Important Legal Info

Lifeofsailing.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon. This site also participates in other affiliate programs and is compensated for referring traffic and business to these companies.

Best Bluewater Sailboats Under $50K

December 28, 2023

How To Choose The Right Sailing Instructor

August 16, 2023

Cost To Dock A Sailboat

May 17, 2023

Best Liveaboard Catamaran Sailboats

Can a Novice Sail Around the World?

Elizabeth O'Malley

Best Electric Outboard Motors | Life of Sailing

4 Best Electric Outboard Motors

How Long Did It Take The Vikings To Sail To England?

10 Best Sailboat Brands | Life of Sailing

10 Best Sailboat Brands (And Why)

December 20, 2023

7 Best Places To Liveaboard A Sailboat

Get the best sailing content.

Sailing In Style

Search this blog, the science of sailing: a deep dive into the physics of catamarans and monohulls.

Setting sail on the open water, powered by nothing but the wind and your knowledge of the sea, is a sensation like no other. Sailing is a practice steeped in centuries of tradition, but it's also a fascinating study of physics in action. We’ve looked at the physics of pounding or ‘smashing’ for a catamaran, let’s now look at the physics of sailing. In this post, we're taking a deeper look at the forces behind sailing, particularly focusing on the differences between sailing a catamaran and a monohull.

At the heart of sailing is the understanding of how forces interact. The primary force at play is the wind. As the wind strikes the sails, it creates a pressure difference on the opposite sides, resulting in a forward thrust that propels the boat. Simultaneously, the water exerts a resistance on the hull, known as drag, which the boat must overcome to move forward.

Monohull vs. Catamaran: Stability and Speed

Now let's delve into the specifics of monohulls and catamarans, starting with stability. Monohulls rely on a weighted keel beneath the water's surface for stability. When a gust of wind hits a monohull's sails, it heels over. This heeling action combined with the buoyancy of the hull works to keep the boat upright.

On the other hand, catamarans, with their twin hulls, have a much wider beam that gives them superior initial stability. They don't have a heavy keel like a monohull, and therefore, don't heel over significantly. This can make sailing a catamaran a completely different experience.

Weight and Performance

The weight of a vessel significantly impacts its performance. Catamarans, due to their dual-hull structure, are generally lighter than monohulls of the same length. This lighter weight, coupled with the increased hull surface area, often translates into greater speed, particularly in downwind conditions. However, the weight also impacts its momentum. Heavier monohulls carry more momentum, which can provide a smoother ride in rough sea conditions, as they tend to push through the water with more force.

Maneuverability and Draft

Maneuverability is another factor where these two types of vessels differ. Monohulls, with their single hull and deep keel, can pivot around a single point, making them nimble and agile. Catamarans, in contrast, can be more challenging to maneuver, especially in tight spaces.

In terms of draft—the depth of water that a boat requires to float—catamarans generally have a shallower draft than monohulls because of their lack of a deep keel. This means they can access areas with shallower waters, like close to shore or over reefs, that would be off-limits for most monohulls.

When it comes to safety, both catamarans and monohulls have their merits. Monohulls, due to their ballasted keel, have the inherent ability to right themselves if knocked down by a strong gust of wind or wave. Catamarans, on the other hand, don't have this self-righting feature. If a catamaran is flipped, it is highly unlikely to right itself. However, due to their dual-hull design and buoyant materials, catamarans are less likely to sink than monohulls, even when capsized. Their wide beam also provides increased stability, reducing the likelihood of a capsize in the first place.

Rigging and Sail Plans

The sail plan of a boat refers to the configuration of the sails. While the specific design can vary considerably, the core concept remains the same: to capture the wind and convert it into forward motion. Monohulls typically have a sloop rig, which consists of a single mast and two sails - a main sail and a jib. Some larger monohulls also feature a second, smaller mast toward the stern, known as a mizzen mast. Catamarans, on the other hand, commonly use a fractional sloop rig, where the forestay (to which the jib is attached) doesn't go all the way to the top of the mast. This design allows for a larger main sail, enhancing performance, especially when sailing upwind. Understanding the rigging and sail plan of your vessel is crucial for optimal sailing performance and safety.

Underwater Hull Design

The underwater hull design plays a significant role in a boat's performance and handling characteristics. Monohulls usually feature a displacement hull, meaning they move through the water by pushing it aside. They have a deep keel which provides stability and allows the boat to sail upwind efficiently. Catamarans, in contrast, have a planing hull design. Each of their two hulls is slim and elongated, designed to glide on top of the water rather than displacing it. This reduces the drag and allows catamarans to achieve higher speeds. However, the trade-off is that they often cannot point as high into the wind as a monohull.

Materials and Construction

The choice of materials in the construction of a boat impacts its weight, durability, and overall performance. Traditionally, boats were made of wood, but most modern sailboats are built from fiberglass due to its strength, durability, and low maintenance requirements. Higher performance boats might use carbon fiber, which is incredibly strong and lightweight but comes with a significantly higher cost. Some boats, particularly those designed for long-distance cruising or high latitude sailing, are constructed from aluminum for its exceptional durability and resistance to corrosion. Understanding the materials used in your vessel's construction can help in its maintenance and in understanding its performance characteristics.

Comfort and Space

Lastly, let's touch on the aspect of comfort and space, a crucial consideration for those looking to live aboard or undertake long voyages. Catamarans, with their wide beams and dual hulls, generally offer more living space than monohulls. They also tend to have less heel and movement underway, which can make for a more comfortable ride, especially in rough seas.

All in all - it's your choice

Sailing, with all its intricacies, is a confluence of physics, meteorology, design, and human expertise. Both catamarans and monohulls offer unique sailing experiences, with their distinct characteristics lending to different strengths and weaknesses. The choice between them depends largely on personal preferences and intended use. Regardless of the type of vessel you sail, understanding the underlying principles that govern their operation allows for a more informed, safe, and ultimately rewarding sailing experience.

Fair winds and following seas, until our next post!

monohulls and catamarans

IMAGES

VIDEO

COMMENTS

Catamaran vs Monohull: Pros, Cons & Main Differences

The Strengths and Pros

Catamaran advantages

Monohull advantages

Weaknesses and Cons

Catamaran Cons

Monohull Cons

Troubleshooting Pontoon Boat Battery

Best Ice Fishing Fish Finders in 2023

Best Side Imaging Fish Finders in 2023

How to Choose a Fishfinder for Your Boat: A Comprehensive Guide

5 Best Portable Fish Finder in 2023

Charging Your Trolling Motor Battery with a Solar Panel

Don't miss out

Monohulls vs. Catamarans: Which One is Best for You?

What are classic monohulls?

What are catamarans?

Hull design

Maneuverability

Accommodations

Performance

Maintenance

Resale value

Resale Value

Similar Posts

How Much Does Biofouling Slows Down your Boat?

What is a Ketch Sailboat?

What is a Sloop? Definition, Types and History

Basic Sailing Terminology: Sailboat Parts Explained

Whats the Difference between Standing Rigging and Running Rigging?

What is a Keel?: The Backbone of a Ship

Catamaran vs Monohull: The Great Sailboat Debate

What Are the Differences Between Catamaran and Monohull Boats?

What are catamaran-style boats?

What are monohull-style boats?

Where Catamarans and Monohulls Excel

Catamaran advantages

Monohull advantages

Catamaran vs. Monohull Sailing Speed

Catamaran vs. monohull power

Catamaran vs. Monohull Efficiency

Catamaran vs. Monohull Stability

Catamaran vs. Monohull Safety

Monohull vs. Catamaran Maintenance

Catamaran vs. Monohull Cost

Catamaran vs. Monohull, Pros and Cons

Catamaran pros

Monohull pros

Catamaran cons

Monohull cons

Related Articles and Guides

Best Wakesurf Boat Brands

The Best Flats Boats Brands, Special Boats for Skinny Waters

Best Lake Boat Brands for Fishing, Cruising, and Watersports

Best Aluminum Fishing Boat Brands: Tougher, Lighter and More Affordable

Join for free

Are you a broker? Join as a Broker

Save this search

Catamaran vs. Monohull: We Changed, Should You?

ADVANTAGES OF A CATAMARAN

2. A Catamaran is a Stable, Safe Platform Underway

3. Crew Fatigue Reduces on a Catamaran

4. Comfort at Anchor

5. Anchor Bridal Setup

6. Ease of Boarding on a Catamaran

7. Shallow Draft Equals Better Anchorages

8. Dinghy Davits & Dinghy Size

9. Interior Space and Comfort on a Catamaran

10. Redundancy on a Catamaran

11. Maneuverability

12. Rigging

DISADVANTAGES OF A CATAMARAN

2. Sailing Downwind

Our Own Catamarans & Monohulls

CONCLUSION: CATAMARAN vs MONOHULL

Estelle Cockcroft

4 thoughts on “Catamaran vs. Monohull: We Changed, Should You?”

Leave a Comment Cancel Reply

Recent Posts

BALI Catamarans Unveils The New Bali 5.8 Flagship