Ed Horstman designed TRIMARAN and CATAMARAN plans are drawn for the first time builder. Plans are concise and clearly drawn so the builder can easily follow each building step. Designs are continuously updated with your input and new ideas. Plans include full size patterns to 63'. The larger TRI's and CAT's have full radius hulls.With no lofting you build right away. The DESIGNER'S book TRIMARAN and CATAMARAN CONSTRUCTION is part of the plans (over 21') and covers all phases of construction. Plans are leased to build ONE boat, NO time limit. Tri-Star designs are proven designs, sailing the seven seas since 1964. Free consultation is provided to the original non-professional builder till he or she is sailing the seven seas. All boats may be built with flared hulls, with the exception of the TRI 25, TRI 26MT, CAT 27PC and the CAT 27. A DESIGN FEE for customer modifications to stock plans.

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TRI-STAR CAT 19 Plans $ Trailerable, Fast Catamaran Design with berthing areas



TRI-STAR CAT 27 PC Study Plans $
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A comfortable micro-cruising catamaran.



TRI-STAR CAT 27 Study Plans $
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CAT 34, designed as a mid-size comfortable, quick sailing catamaran with comfortable accomodations, a spacious bridge deck lounge area that has 6ft of headroom.


TRI-STAR CAT 34 Plans $ CAT 36 designed as a spacious, fast enjoyable sailing cataramarn with accomodations found only on much larger yachts.

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CAT 38 designed as a spacious, fast enjoyable sailing cataramarn with accomodations found only on much larger yachts.

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CAT 41 designed as a spacious, fast enjoyable sailing cataramarn with accomodations found only on much larger yachts.

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CAT 51 is an elegant cruising or charter catamaran, designed for the owner desiring a spacious, enjoyable sailing catamaran.

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CAT 55 is an elegant cruising or charter catamaran, designed for the owner desiring a spacious, enjoyable sailing catamaran.



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I TRI’D – A Self-Designed 18-foot DIY Trimaran

by Small Tri Guy | Oct 4, 2013 | Self-built Small Trimarans , Small Tri Info - All , Small Trimaran Videos | 4 comments

I TRI’D is a self-designed 18-foot DIY trimaran by sailor Mick Milne. He built this sailboat himself after researching lots of small tris and then using using “HULLS” software to produce dimensions for the panels.

The building technique is “stitch and glue” plywood — with the main hull oversheathed with two layers of fiberglass and epoxy. And the outriggers slide in on aluminum beams to allow trailering . It looks pretty good.

Mick learned all this stuff as he went along. But the best part is that he thinks it sails just fine.

Mick said the build took about 16 months in his spare time. This time frame was mainly driven by the weather, however, as the building took place outdoors in the UK, which, according to Mick, had one of wettest winters in years.

The first launch of Mick’s DIY trimaran was last October. What a day that must have been for him.

Great job Mick …. terrific! Thanks so much for sharing the story of your project (and photos) with us here. ( PS – Love the name of your boat too :-)

………………………….

I TRI’D – 18-foot DIY Trimaran by Mick Milne I have sailed for many years, mainly dinghies and small cats, though also a limited amount of coastal sailing in UK and around Denmark. I have never really lived on the coast so sailing as regularly as I would wish has always been a challenge.

Drawing plan for the I TRID Trimaran

A bit more research led me to view that a Tri fitted all the requirements I was looking for:

  • Sailing reasonably flat
  • Shallow draft
  • Reasonable pace
  • Trailerable – as long as it folds somehow

The more I looked, the more I got hooked, and I am one of those guys who once something gets under my skin I have to do it.

I spent a lot of time looking at designs and think there are some great Tri’s out there, but I like the problem solving aspect of designing something. I bought and read your book, “ More Small Trimarans, ” and noted the variety of different approaches, ranging from fully qualified and experienced designers to those who “just learnt as they went along”; that was enough inspiration for me to start my own.

First ama hull being built

The only real frustration was the weather. All the build was outside and I spend too much time removing and recovering the boat. If I build another (I suspect I will) it will definitely be under cover.

Main trimaran hull with crossbeam fittings

The small trimaran begins taking shape

First sail fitting with mainsail and jib from a Fireball Dinghy

I definitely expect to do some more modifications in the future. I am not a boat designer and there are things that are not right first time. The seating areas slide in, which I thought would help with the trailing width, but it all increases the setup time. I am going to raise them by about 1 inch , which will allow the outriggers to slide underneath without unlocking various pins etc. Also, I never really designed in an adequate system for mounting an outboard, currently fitted to the sliders it is secure but poorly positioned. I will change this when I amend the seats.

Blue deck paint on this small tri

Launch Day!

Sailing Cardiff Bay

To date, I’ve primarily sailed I TRI’D mainly around Cardiff in Wales. There were also a couple of trips into the Bristol Channel when conditions were favourable. The boat was planned for relatively calm coastal waters, with the expectation that in a few years we will move to the South Coast of England, near Poole, which has a very large natural harbour, with lots only accessible with a shallow draft, and easy access to get further along the coast.

Under sail with her tramps

Smaller trimaran moored with the big boats

Update 10-07-13: Mick sent me the following YouTube video featuring I TRI’D …

___________________________________________________________

Fantastic job Mick!

I’d love to see some more photos, or video of you sailing. I’m also fascinated by the reasons for people’s design choices. Why did you decide to design your own? Why 18 foot? Do you stand on the hull, or is there a floor? What sort of lee-board did you build? Is there a photo? What’s wrong with the outboard position? How long does it take to rig and launch?

Robin, thanks for your interest.

I have a video but am having problems uploading it, not my area of expertise but I will persevere, hopefully I will have that complete in the next couple of days, I will also provide more photos.

Why my own design – I think I covered that partially in the notes but in essence I think I just like to understand how things work and also I like doing things to see if they do work, and I suppose experience has shown me you can do most things if you try.

Why 18ft – I certainly wanted something I sat in rather than sat on, but had also read in many places the advice not to build a boat bigger than you need. Once I started designing 18ft provided enough space to seat two easily, four at a push, and provided enough displacement. I did sketch out some 16ft designs but they just seemed to be too small.

There is a floor, simply 18mm plywood , raised about 4-6 in from the hull base, this seemed to make sense rather than walking on the hull. Surprisingly there are no pictures but I will take some and post them.

The leeboard is simply plywood sheet shaped, but is already showing signs of stress. I am busy reinforcing a hardwood centreboard (with epoxy and fibreglass)which I will use to replace the plywood. I got most of the ideas for the leeboard from Frank Smoot’s excellent website which has featured several times on this blog. His explanations and points, such as that shifting a leeboard to change the CLR, really helped. There are some photos showing the leeboard which I will post.

The issue with the outboard position is the mounting bracket, not the outboard itself. As the slider mountings are round, and close together, I have had to modify the outboard bracket, the bracket obscures access to the slider locking pin and also applies enough pressure to the mounts to restrict free movement of the sliders. This means I am continually slackening or tightening the bracket , or removing it. It is just not a good piece of work. If I was designing the same boat again I would fix a wooden square bar 4-6 inches behind the slider mounts to provide easy location of a standard outboard bracket.

Rigging and launch takes around an hour though part of that is due to the launch site I use. Good launch sites are rare in UK and it is a busy site. I have to rig the mast, the jib , outboard, and seats at a trailer area, and then having reversed onto the ramp extend the outriggers and tighten the tramps, then launch. I then normally rig the main on the water. Part of the work to modify seats, outboard mount and a few other small tweaks is to reduce this time, though I do think rigging the boat is part of the experience so I would not want to have no rigging to undertake.

I hope all that that helps answer your queries and I will put together some more photographs showing some of the detail, and hopefully that video.

Love it, Mick. I’m always excited when any bold venture sets out to, not only build, but design their own trimaran. I’m on maybe my 10th “home brew” tri now, and each one has been not only a blast to build and sail, but a real education as well. My latest (a 19-footer) is probably my best so far. Set-up time was always an issue for me, too, which is why I ended up with a folding design and an unstayed mast with the 128 sf sail furled around it. My designs are shaped by the places I sail (shallow) and by the fact that I always beach launch. 18′ is probably the perfect length for a tri you can launch, rig, and sail alone. Your boat looks great, and I’m delighted that my leeboard info was helpful. Couple of questions, if I may: What does she weigh in at, all up? How much sail are you carrying? Have you had a chance to speed test with a GPS yet? All my boats have hit 14 mph (white knuckling it, for sure!), but I haven’t hit 15 yet. I think I will, though, with my new vertical batten sail. I’d be happy to email you some photos, if you like. Also, I now use solid lumber for my rudder and leeboards, covered in 4 oz glass. They last much better that way (I got tired of having to constantly repair them). Again, excellent job! And I liked the video as well – mainly because you kept the camera moving and we got to see most all of the boat. Cheers, “Trimaran” Frank

Hello Mick,

Congratulations for your boat ! I’m very interested in your 18 ft trimaran because i have the same project. I have some questions : Is there any drift ? where it is ? The seats are fixed under the tubes, that ‘s it ? is it a self draining background in the cockpit or not ? Did you purchase specific sails or you pick up them from an other boat, witch one ? what is the the mainsail area ? what is the weight of your boat ? You designed your boat with what software ?

Thank you for your reply Best regards x.lemaire

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Never too young to enjoy a nice sunset.

 Looloo (left) and Lucky McGee enjoying the cruising lifestyle aboard Chincogan 52 Moonraker  anchored at the mouth of the estuary at the south end of Ko Phra Thong after spending a couple of weeks at Ko Phayam.

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Then and now

The seafront of Cartagena in Colombia is the backdrop for two sailing vessels of different epochs and sharply contrasting character.

Against the sea wall  Galeon Bucanero , a replica of a Spanish galleon of the seventeenth century is totally at home against the fortifications of this historically significant Spanish port city.

In the foreground Chincogan 52  Sole currently circumnavigating the globe stops over en route to Panama and the Society Islands.

Over the years I've received many wonderful photos of our boats from around the world. This one is an absolute classic. Many thanks to Mike and Sarah Mason for the shot.

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The new "Mini Trimaran" as it is being called (for now) is an evolution of our work in small multihulls over the years. It combines elements of the successful  Expedition Sailing Canoe  and the " kayak trimaran " named 'Spongebob' into a new vessel. Hull #1 was cut out as a CNC kit in July 2020 and is now in the process of going through sea trials. Click here for Construction  Photos of hull #1   You can get a sneak peak of the builders guide here .

Features of hull #1 included a roller furling mainsail and headsail for easy reefing and a boom for superior sail control. For Hull #2 we went back to a non rotating mast with slab reefing and single line reefing instead. The amas retract into the center crossbeams to reduce the overall beam for trailering without having to demount the amas. A stern cockpit with a large kayak style cockpit coaming can be used with a spray skirt. Steering is accomplished with foot pedal controls or a tiller. The boat can also be sailed from the center cockpit and there is optional space to install a hobie mirage drive in the center cockpit. Ample storage for a full expedition load. The center cockpit is flanked by a pair of "wing decks" which are large enough for sleeping aboard with a bivy or cockpit tent. A leeboard is controlled with lines running to the aft cockpit. The hull incorporates an integral spray chine above the water line to increase cockpit comfort while maintaining a narrow waterline beam of 19 1/2" 

Length: 18’ 6” Sailing Beam: 11’ Trailering Beam: 6’ 8-3/4” Working Sail: 100 sqft Optional Spinnaker: 80 sqft Empty weight: ~290lbs Gear/water capacity: 150lbs Full Load Displacement: 620lbs (solo) PPI: 117lbs (pounds per 1” immersion Ama buoyancy: 275lbs 

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Above: Hull #1 freshly painted. April 2021

Latest News: Plans and a CNC kit for this design are coming soon. Hull #1 and 2 are currently in testing and prototyping phases and we look forward to improving the design of the rigging and kit for future builders. 

Video from first Sea Trials in Jan. 2021. We were very pleased with the performance and look forward to further testing the rigging and design in preparation for releasing plans and kits for this design. You can note in the video that the boat is being sailed totally empty so the bow rides a bit high. 

Hull #1 made the trip to the 2021 B&B Messabout and we had a chance to test here out. 

Hull #2 was completed and launched in January 2022. Changes to the design include adding some legroom to the aft cabin, and including space for a hobie mirage drive well in the center cockpit. Hull #2 does not have a roller furling mainsail but instead more traditional slab reefing. A Core Sound 17 mainsail is now the primary working sail and a furling code zero is again used for light air and an off the wind boost. 

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DIY Cruising Catamaran: Complete Building Guide

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A brand-new cruising catamaran can set you back a hefty amount of money. However, a DIY cruising catamaran provides a more affordable way to own your own boat. While building a large boat can be an extremely challenging and time-consuming experience, nothing beats the pleasure of bringing your own boat to life. 

To build a DIY cruising catamaran, buy good design plans, determine your budget and find a working space. Next, choose your hull material, buy supplies and start building the mast beam. Build and sheathe the hull, install bulkheads, the interior, and finally, launch the catamaran boat.

In this article, you will find a complete guide to building your own catamaran. You will also find detailed information on why you may want to consider building your catamaran and approximately how much this project would cost. Finally, we will explore the advantages and disadvantages of building a catamaran from scratch.

Why You Might Want To Build Your Own Catamaran

Most people might think that purchasing a used boat to repair and fix it up would be cheaper than a DIY cruising catamaran. But while building your own catamaran could be an enormous undertaking, it also comes with many advantages over buying something used. 

Other than the unique opportunity to create beautiful memories and experiences while cruising, sailing, and exploring beautiful coastlines, there are a number of benefits that come along with the DIY approach.  

Knowing Your Boat

Building your own catamaran provides you with intimate knowledge of your boat. You will know every corner, including where to find every bolt, wire, bulkhead, rib, hose, and support as you installed them yourself. This knowledge will enhance your confidence while at sea since you will have entrusted your life to a boat whose history you are aware of and deeply connected to.

Pride of Ownership

The satisfaction you get from crafting something with your own hands is immense. As a result, the knowledge that you built your boat from scratch will fill you with absolute pride and an immense sense of achievement. Furthermore, as an owner-builder, you get to keep and enjoy the boat for as many years as you wish.

Substantial Cost Savings

Building your catamaran will work out cheaper than buying a new or even gently used boat. Though you will likely require some additional labor since doing some things will require an extra pair of hands, if you are particularly good at DIY, you will save a significant amount of money on labor costs as a whole. 

Freedom To Create Your Own Designs

If you decide to buy a catamaran boat, it might not be easy to find one that meets your unique needs. However, instead of choosing from production boats that bear traditional and outdated designs, you can come up with an ultra-modern design or style for your catamaran. You also get to pick your layout, size, and equipment based on your taste and budget.

Great Learning Experience

Building your own boat will help you pick up numerous skills that will come in handy later when sailing your boat. As much as you might still require an expert to help you with specialized skills like carpentry or wiring, your new skills will serve you well. This will also be beneficial when it comes to your boat’s maintenance and fixing things for yourself. 

What To Look For in Catamaran Boat Designs

When deciding on the type of catamaran boat to build, you may want to choose a design that’s simple and easy to build. This is because doing so will allow you to spend a shorter time building the boat. 

You also need to have a set of requirements to guide you in choosing your design or what you might call an ideal cruising catamaran wish list. This is essential because, ultimately, you want to build a boat that offers outstanding qualities such as:

  • Delivers good speed
  • Affordable to own and operate
  • Agile, strong, and easy to maintain
  • Has a high resistance to capsizing
  • Great for sailing and cruising
  • Delivers a comfortable and easy motion underway
  • Good handling ability and high performance under sail
  • User-friendly embarking and disembarking
  • Provides ample living and accommodation space 
  • Presents a reasonable resale value

It’s worth noting that, in general, catamaran boats tend to offer a fair resale value mainly because of scarcity and the high price accorded to production models. So, if you build a well-constructed catamaran, you are bound to get a return that’s much higher than the cost of materials upon resale.

It’s also good to consider whether the design you settle on is from an established designer. This is significant because documentation of the building process is just as valuable when it comes to selling the boat.

How Much Would It Cost To Build Your Own Catamaran?

The cost of building your cruising catamaran will depend heavily on the size of the boat you plan to build and the skills you bring to the table. To give you an idea of probable costs, a professionally built 40 foot (12.1 m) long cruising catamaran could go for up to $300,000. 

Though building it yourself will undoubtedly be cheaper, most DIY boatbuilders tend to underestimate the expected costs. Your final costs should cover not only the cost of material and equipment but also the labor and time it would take to come up with the final product. 

If you were to build a 40-foot (12.1-meter) catamaran, your cost of materials would range between 20-30% of the total cost. Therefore, for $300,000 total, the boat’s materials would range between $60,000 and $90,000. The hull tends to range between 15-35% of the total build. Again, this depends on the finish and furniture.

But before you even start working on the DIY project, you will need to figure out where to do the work. If your home has ample space, then you can opt for a backyard building. But if you live in a small apartment, then you might want to consider renting a small garage at first and then move on to a boatyard later. This is one of the significant costs involved in building your multi-haul.  

What You Will Need

To get a clearer picture of how much the entire project would cost, let’s have a look at what else you will need to purchase.

  • Good design plans
  • Working space
  • Ground tackle
  • Matting and roving
  • Equipment such as the engine, windows, rudders, deck fittings, mast, and rigging

In addition to the above, you also need to install plumbing and electricals. You may also want to consider going electric rather than using diesel. Not only will this drastically reduce your maintenance costs, but you get to use the regenerated power for all of your housing needs while sailing. 

Some catamaran boat designs help you save costs by advocating the use of less expensive corpus materials. Most of the material goes directly into making the boat, which means there is hardly any wastage on vacuum bagging . With this method, there are few molds and temporal building forms and fewer fillers to grind off as waste. All these factors reduce the time and cost it takes to build your catamaran boat.

That said, building a boat of any kind is a huge financial undertaking. As such, you still need to have the financial ability to keep building; otherwise, your project will stall or take much longer than anticipated. Instead of enjoying yourself and making memories cruising to faraway lands, you might end up spending all your time building a seemingly never-ending boat.

To reiterate, this project is more of a labor of love, given that it involves a tremendous amount of manual work. Calculating an hourly rate on the time spent building the boat and adding this cost to that of materials may make it seem a very pricey exercise. However, it is vital to understand that your time matters, and every hour you spend working for “free” should be included. 

With that in mind, you need to ensure that you are fully devoted to the boat construction project and are sure you want to do it before you begin. Stopping halfway because it seems like too much work would be incredibly costly.

How To Build a Catamaran

When it comes to building a cruising catamaran, you have 3 main options:

  • You can buy an old boat and refurbish it.
  • Purchase a bare hull plus deck molding for a home-boat building.
  • Start from scratch and build everything, including the hull, on your own. 

As mentioned above, renovating an existing boat may end up being more costly than starting from scratch. To build a catamaran boat from scratch, follow the below step-by-step guide.

Prepare the Essentials

Before you jump into such a large project, there are several important aspects to consider:

  • Buy your plans from an established catamaran designer. You can also get inexpensive, easy-to-build catamaran designs online.
  • Get access to a large working space or build a shed . Depending on your climate, you may need to opt for climate control to avoid an excess of moisture in humid areas. 
  • Decide on your choice of hull material. This could be fiberglass, aluminum, steel, wood, or ferroconcrete. 
  • Start working on a bill of materials estimate. Include everything that you think you need to get a better idea of the initial costs.

Build the Mast Beam

Using wood and epoxy, cut and glue together the pieces of wood that will form the mast beam. Most of the work at this stage can occur in a garage since it involves building small parts. Still, the work could take up to 4 months, so be prepared to put in long hours.

Build the Boat Hull

Now, it’s time to build the boat’s hull. A catamaran comprises two hulls which are connected with a deck. Below is a short video showing how to build a hull mold:

This work requires a larger facility, so you might need to move out of the garage and into a boatyard. If you don’t have access to a larger workshop, consider building a shed where you can work as you do the construction. Make sure there’s enough room to fit the boat and also allow you to work comfortably. To cover the shed, you can use opaque white tarps. 

Sheathe the Hull

Get all the materials you require for this stage in the construction, such as lots of resin, fiberglass, and foam for use in the hull cores. You’ll also require matting and glass roving to sheath the hull . 

Sheathing helps to make the hull impervious to water and other marine borers. But first, you need to prepare the hull using a rotary sander. To make it as smooth as possible, use light, sweeping strokes. This is a very dusty task so be prepared to wear a facemask and safety goggles. 

Install the Bulkheads

Next is installing the plywood bulkheads . You might need to call in friends to help turn the hulls or use a crane. In this step, you will need to laminate the hull sides on the molded hull panels and bond them above the bulkheads. Ensure the bulkheads are snug and sealed in place.

Construct the Interior Structure

Over the next couple of months, the boat work will involve joining the hulls together with the beams that you had made back in the garage. Then, install the cuddy cabin, decks , and the cockpit . Soon the boat will start to take the shape of a catamaran.

Next, proceed to construct the major structural components such as stairs, hatches, mini-keels, and the interior. Then comes the work of fairing the boat, which is quite labor-intensive. 

Finally, it’s time to apply primer on the catamaran boat and start the paintwork. Before painting the boat, you will need to do additional sanding to finish off the two layers of primer as well as fill all the pinholes. Since it’s a large boat, the catamaran has lots of surface area; thus, the sanding could get extremely exhausting—mentally and physically—at this point.

The painting can take a while, too. The hulls are the easiest to paint, but the topsides, non-skid, as well as masking and prepping could seem never-ending. 

The final stretch involves working on the center bridge deck cabin and other final touches like installing the engines, electricals, and plumbing. This is also the time to fix the rudders, rigging, mast, windows, and deck fittings.

Launch Your Cruising Catamaran

After many months or years of hard work, your cruising catamaran is finally ready to test the waters. After lowering the boat into the water, check carefully in case there are leaks. If none, you can set up the sails and take your catamaran out for your first cruise. 

Below is a short video that takes you through the entire boat-building process:

If you don’t have deep pockets, don’t despair. It’s also possible to build an inexpensive catamaran boat, as shown in this post from the coastal passage .

The Pros of Building a Catamaran

Though it will be a costly endeavor, there are so many things to look forward to should you decide to build your own catamaran:

  • It can be lots of fun.
  • You get to have a new boat.
  • It’s an excellent hobby for DIY enthusiasts.
  • The effort is rewarding.
  • It offers a great learning experience.
  • You get the exact kind of boat you want.
  • You can alter building plans and tailor the boat to suit your specific needs.
  • It might be cheaper than buying a new boat.

The Cons of Building a Catamaran

Though there are a number of positive aspects to a DIY build, it is just as important to keep in mind that it won’t always be easy:

  • Maintenance costs can be quite high.
  • It’s both mentally and physically exhausting.
  • It might require some technical know-how.
  • It can take many months or even years to complete.
  • It requires a lot of commitment to finish the DIY project.
  • It might be challenging as well as expensive to get insurance.  
  • You will spend almost all your free time building the boat. 

DIY Cruising Catamaran Tips and Tricks

If you are new to boat building, it would be a good idea to build a small boat first. This would give you a good indication as to whether you’d enjoy tackling a more extensive project like building a catamaran. Again, if you are the handy type, fixing your own electronics could also save you a significant amount of money. 

Here are more tips and tricks to get the most out of your DIY cruising catamaran:

  • Lower your costs. Bring down your costs even further by sourcing for parts and supplies at marine surplus outlets, Craigslist, eBay, or wholesale suppliers. 
  • Enhance your resale value. Most home-built boats are not easy to sell since they tend to be too customized. To enhance your resale value, it’s advisable to work with a standard design from a well-established naval architect.
  • Follow the design instructions. Make sure to follow the designer’s instructions regarding the type of materials and tools to use during the build to avoid making costly mistakes.
  • Maintain your original budget. Avoid any additional customizations once you have started building the boat. Using good plans and sticking to them ensures that your budget doesn’t spiral out of control.

Final Thoughts

Building a catamaran is about more than saving money. It’s fun, exciting, fulfilling, and can be a great learning experience. While it might take many months of back-breaking work, comparative shopping and sourcing for materials will help you save a lot of money. Still, at the end of it all, you’ll have a beautiful catamaran boat, all ready for your first cruising adventure.

However, if you have neither the time nor the energy to build your own catamaran from scratch, refurbishing an existing hull might prove faster and easier. It also works out much cheaper than buying a new boat.

Owner of CatamaranFreedom.com. A minimalist that has lived in a caravan in Sweden, 35ft Monohull in the Bahamas, and right now in his self-built Van. He just started the next adventure, to circumnavigate the world on a Catamaran!

One thought on “ DIY Cruising Catamaran: Complete Building Guide ”

Hello, I am a French Quebecer who is original, imaginative, creative and who finds that all boats and catamarans have a huge flaw and a very big lack of logic. I would have a brand new concept…. I am sending this message to any catamaran creator – designer to make those who have the opportunity and the intelligence to want to know about my innovative idea which will finally upset the market much richer. An idea that will totally change the concept of sailing, navigation and save so much worry!! All I would ask for is a small percentage of each sale of the new product. To be able to make me produce one when I have enough!! It is certain that like that, you just want to tell me: come on Mr. Lessard give us your idea but do not take your word to help me in return! But, if you are the kind of man to have only one word and maybe have a proof of your good faith if the realization of the project would make it… I will be very happy!! Giving it to everyone wouldn’t bother me either…. all I would like is to be able to find flax fiber (too expensive carbon) to be able to try to make my catamaran myself. Because not rich! Have a nice day and looking forward to having a message!!

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Madness Pacific proa fast sailing boat

Madness Pacific Proa

A lightweight Pacific proa for fast cruising or daysailing.

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Southwester Dory sailing boat

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Lightweight Goat Island Skiff sailing boat with modern performance

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Family home made sailing boat in a marsh

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Take-apart Passagemaker sailing boat

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Pixie beach catamaran by Richard Woods

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Looking for Bluewater Trimaran plans 40-50 feet

Discussion in ' Boat Design ' started by Schoolbus , Feb 17, 2019 .

Schoolbus

Schoolbus Junior Member

There seems to be a real gap of trimaran plans out there in the 40- 50 foot range- I am only finding trailerable tris, or very old Piver type designs, or the 54 foot Chris White Hammerhead..... Anyone out there know of any bluewater 40-50 foot Trimaran plans? (Neel 45 is one of the few production ones, and it is more of a catamaran style.......) Sincerely, Schoolbus  

Angélique

Angélique aka Angel (only by name)

Schoolbus said: ↑ Anyone out there know of any bluewater 40-50 foot Trimaran plans? Click to expand...
In WoodenBoat Magazine #265 * ( Nov . /Dec . 2018 ) was a design concept for a LOA 39' 4" ( 12 m ) wind - solar - electric trimaran motorsailer by Laurie McGowan . * Table of Contents PDF ​ ​ ( the flickering in the above animation, below the bottom in center view, is the lines of the bow centerboard and the mid centerboard and the rudder interfering with each other while being raised and lowered ) — two Elco EP-14s electric motors, one up and one down in this aft view — ​  
F-39 Farrier is close but a bit short and the retractable amas put it into the trailerable slot, I am really looking for a dedicated bluewater cruiser tri....... Something about the WoodenBoat's tri seems a bit off.....cant put my finger on it- a bit like a Popular Mechanic quality of execution..... Schoolbus  

rwatson

rwatson Senior Member

There are Grainger Tri's - about four models TR52 Performance Trimaran https://www.graingerdesigns.net/trimaran-designs/tr52-trimaran/  
Philippe Briand has designed the Exception 52 Tri, several were built by Techni Yachts Pinta in the 1980's , here's one for sale , don't know if Philippe sells plans for it though, but if meant for single handed self build then such projects are gonna be to big I think.  
rwatson said: ↑ There are Grainger Tri's - about four models TR52 Performance Trimaran https://www.graingerdesigns.net/trimaran-designs/tr52-trimaran/ Click to expand...

Tad

Tad Boat Designer

Searunner Multihulls - CC 44 Tri http://www.searunner.com/index.php/cc-44-tri Traveler Class Trimaran by Dick Newick http://dicknewickboats.com/traveler.html Kurt Hughes Multihull Design - Catamarans and Trimarans for Cruising and Charter - 52' Trimaran http://www.multihulldesigns.com/designs_stock/52tri.html  

Richard Woods

Richard Woods Woods Designs

Add Roger Simpson, John Marples to the list if you can still get plans (not sure) RW  
Here's a thread about a Roger Simpson 43 ' Liahona stalled build project, it shows it's important to make a realistic plan how to finish such a project before starting it. To see some pics of a completed Liahona, there's a fixer upper for sale * , she's located on Walter Greene' s yard in Yarmouth ME. ( * see post #20 - #25 - #27 in the above linked thread )  
↑ 2 × the in 1999 Greene built 38' Scout , designed by Walter Greene. ↑ P2 - 52' Newick/Lambert/Greene design, in 2005 built by Greene. See also Dick Newick designs. ( one of them is already linked by Tad in post #8 )  

Squidly-Diddly

Squidly-Diddly Senior Member

here is a good one.  
At 60' she's out of range, she's an tarted up for hollywood older version of an ORMA 60 ... Same type , the old ORMA 60 Brossard , she was wrecked in 2009 in Oman , and has been there like pictured for quite a number of years .  
I always thought that the big harpoon in the front would have been super useful. Would have added a lot to the marina charges though.  
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That's why they've parked Brossard's bow on the boulders in Oman, as they were only charged for the part in the water there . . from Brossard's better days . . . ​ ​  

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Small double canoe catamaran on the beach

Hitia 17 is the perfect beach catamaran, but also capable for use as a micro Coastal Trekker. Her wingsail sprit rig with low centre of effort gives good drive and great stability. The sail can be reefed and hence the boat can always be sailed safely without the risk of capsize, which most other beach cats are prone to. She has skegs and rudders that do not project below the V-eed hull, hence she can be sailed straight off the beach without lifting rudders or daggerboards.

She has stowage space within the hulls and the two self draining 'cockpits' are big enough to sit in, or stow camping gear for a longer Trek. The boat can carry four adults. The deck is designed to take a standard two-man dome or pop-up tent, or you can make your own decktent to drawing supplied. Can be carried on the car roof of a bigger car or is easily trailed. A lovely minimalist coastal explorer.

Building Method: Ply/Glass/Epoxy Stitch & Glue
Length Overall: 17' 5.18 m
Beam Overall: 10' 1" 3.07 m
Draft: 11' 0.30 m
Weight: 295 lbs 134 kg
Loading capacity: 550 lbs 250 kg
Sail area: 160 sqft 14.9 sqm
Building Time Estimate: 250 hrs

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Flatiron, Mequity to Convert 152 West 36th Street Office Building Into Self-Storage

By isabelle durso september 18, 2024 4:01 pm.

Many developers might be gunning for office-to-residential conversions in New York City, but Flatiron Equities and Mequity Companies are taking a different approach.

The two developers plan to convert their recently purchased office building at 152 West 36th Street into a self-storage facility, a spokesperson for Mequity told Commercial Observer. Flatiron and Mequity bought the building for $23.8 million from Falcon Properties , with the deal closing early last week, the spokesperson said.

Flatiron and Mequity hope to convert the eight-story office building into a 16-story self-storage facility operated by Manhattan Mini Storage , and bought additional air rights for the project, according to Colliers (CIGI) ’ Zach Redding , who brokered the sale for Falcon along with Dylan Kane . The listed architect on the project is JMN Architecture PC , records show .

“The extremely heavy floor-load capacity, the permitted zoning on this block, the available development rights obtained from the neighboring building, and the ability to double-stack units due to ceiling heights make this office property the perfect candidate for a conversion to self-storage use,” Kane told CO.

The new storage site is set to open in the spring of 2026, with construction funded by a $50 million loan provided by Elsee Partners , according to the Real Deal , which first reported the news. The financing was also brokered by Colliers.

B6 Real Estate Advisors ’ Alex Woodlief , who also worked on the sale, did not immediately respond to a request for comment.

The Class C office building currently at the Garment District site on West 36th Street between Seventh Avenue and Broadway spans 51,853 square feet, according to PropertyShark . Once Flatiron and Mequity’s project is complete, the building will hold 1,500 climate-controlled storage units across 75,000 square feet, according to Colliers.

This isn’t the first time Atlanta-based Mequity has tried out a self-storage development. Last year, it converted a parking garage at 41-47 East 21st Street into a self-storage facility, Colliers said.

Mequity and Flatiron’s latest venture comes amid a post-pandemic trend of investing in the self-storage industry. Compared to other commercial real estate asset classes, self-storage was resilient during COVID-19, when students sent their dorm belongings to storage and offices had to clear out furniture and supplies.

While the pandemic may be past its peak, the popularity of self-storage sites remains. n May, developer Yacov Smouha landed $21.5 million in financing for the acquisition and conversion of a former office and factory building in Tribeca into a self-storage facility, as CO previously reported .

That property at 78 Walker Street is set to be converted into a 30,540-square-foot storage site operated by Public Storage , with completion expected in early 2025, CO reported.

Isabelle Durso can be reached at [email protected] .

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Ayush Kapahi, signer for SKF Development, and an aerial photo of the Bronx.

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alo co-founder Danny Harris and an alo Store.

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Michael Hackman, founder and CEO of Hackman Capital Partners, and a future development at Hayden Tract.

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self build trimaran plans

COMMENTS

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    Building Catamarans and Trimarans; Share Your Experience, Learn From Others. In partnership with The Coastal Passage. This site will feature building projects from as great a variety of materials and build methods as possible. If it's a multihull or any project that relates or enlightens we want to feature it here.

  20. Sailing Boat Plans

    Sailing Boat Plans. A lightweight Pacific proa for fast cruising or daysailing. A traditional-looking 10-foot clinker dinghy for rowing, sailing and motoring that is stable, handsome and easy to build. A pretty, light, tough, roomy and easy to build 7 foot 9 inch pram dinghy that can be rowed or sailed.

  21. Our Catamaran Build Kits

    Having this head start is invaluable and could save almost 1000 hours on your build. (Wilderness 1100 design shown.) STEP 4. The fairing is now complete, this is done using a filler compound mixed with our West System epoxy resin and applied to the surface of the hull. This process is to ensure that when painted the boat will have a smooth and ...

  22. Looking for Bluewater Trimaran plans 40-50 feet

    Angélique aka Angel (only by name) Philippe Briand has designed the Exception 52 Tri, several were built by Techni Yachts Pinta in the 1980's, here's one for sale, don't know if Philippe sells plans for it though, but if meant for single handed self build then such projects are gonna be to big I think.

  23. Hitia 17 Self-Build Boat Plans

    160 sqft. 14.9 sqm. Building Time Estimate: 250 hrs. Hitia 17 is the perfect beach catamaran, but also capable for use as a micro Coastal Trekker. Her wingsail sprit rig with low centre of effort gives good drive and great stability. The sail can be reefed and hence the boat can always be sailed safely without the risk of capsize, which most ...

  24. Hezbollah devices: How did they explode and who is responsible?

    Hezbollah has relied heavily on pagers as a low-tech means of communications to try to evade location-tracking by Israel. Pagers are wireless telecommunications devices that receive and display ...

  25. Flatiron, Mequity to Convert 152 West 36th Street Office Building

    Many developers might be gunning for office-to-residential conversions in New York City, but Flatiron Equities and Mequity Companies are taking a different approach.. The two developers plan to convert their recently purchased office building at 152 West 36th Street into a self-storage facility, a spokesperson for Mequity told Commercial Observer. . Flatiron and Mequity bought the building for ...