Development of project documentation (floats, etc.)
For more than 10 years we have been building ships  for life on the water . Using our experience and analyzing what others are building, we have noticed a number of major mistakes in the construction of floats, which lead to unnecessary spending of money or to the failure of the entire project.
Most often, people build floats on their own because the market for this product, both in our country and around the world, is very small. The choice is small. As a rule, it is narrowly focused, and serves to solve only one problem. For example, for travel (in the US and Australia) or for living on the water (in the Netherlands and France).
The second reason why people are not on the easy path of homemakers - the lack of sufficient funds to buy a ready-made float.
As you know, it is cheaper to learn from the mistakes of others, so just by reading this article, you can save your blood, which then come up with a better destination.
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In addition, as a rule, nothing is eternal, and everything you set up will remain with your heirs or you will want to sell it. Have you tried to sell your own car after throwing out the documents? A very unprofitable deal will work out for you.
I'm not saying that if you are going to operate your houseboat on navigable bodies of water. In this case, you will have to show documents to him often, even if he is always in one place.
You probably already understand what we mean by such a long introduction? So! We believe that the biggest mistake is not to pay due attention to the  legalization of your home .
In our country, if your intended houseboat is not longer than 20 meters, it will be registered by the regional department of the Register of Shipping of Ukraine (RSU). And before you buy boards and nails, you should go to this organization, preferably pre-drawn with a pencil on a torn from a notebook sheet in a cell outline of your future palace.
It is much easier to change the layout, the height of the board, the center of gravity and stability, a pencil on a piece of paper, than then a saw and a chisel on a hard-built float. And you will still have to change, because each RSU inspector has his own idea of ​​the rules of safe navigation on the water. In addition, the job of this inspector is to check the very safety of your vessel, and thus to identify errors and shortcomings made by you. Otherwise, what a "job".
Therefore, as it would be desirable, but it is necessary to go to RSU (and it is better in the winter when there are no turns) or to address in our company. Of course, we will not be able to register your float and issue a boat ticket, but we will help you to follow the most rational path for your specific case.
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The choice of  housing material is the most important and difficult task.
How long your house will stand depends on what foundation you put it on. This is equally important for "land" houses, and for floating.
The reliability of the underwater body of the float is the main design problem. Almost everything is afloat, and people build houseboats from a variety of materials, from empty plastic bottles to multi-ton concrete pontoons. The only question is, for how long are you building your houseboat? If for one fishing, bottles may be suitable, but if the plans are long-term, you need more reliable materials.
The next step from the bottom on the unreliability of the body of the float in  wood , plywood and their derivatives. Of course, ships used to be built only of wood and they served for decades, but these builders had no other options. And we have. And you can hardly count on long-term, maintenance-free operation of the house on a wooden base. Although there are exceptions.
The other extreme is  concrete . The material, of course, is durable, but moving it on water is not easy. So problems with parking and registration. And at regular freezing of a concrete pontoon in ice its service life is small.
Now a great fashion for  plastics . Pontoons are built of fiberglass, polyethylene, polypropylene and other composite materials. And if in some cases in the construction of boats and yachts it is justified, then in a houseboat is not. Fiberglass is good for giving the body complex shapes and contours. The houseboat is not obligatory, on gliding it will never leave. Only reliability, durability and maintainability are important. And plastics do not have all this. Unlike a boat or a yacht, where its hull is the main part of the cost of the vessel, the boathouses have the main money in the living quarters, and not in the foundation, which is "buried" under water.
Of course, if you are going to transport your float on a trailer behind the car, you can use plastic, but only a house only 2.5 meters wide, faster than a boat, and we are talking about houses for living and recreation on the water.
In the USA serial floats are built from  AMG . And this, of course, is very good. Durable, lightweight, durable and reliable material. BUT !! Very expensive! And the technology of welding, preparation of seams, cutting of sheets, requirements to a building site, are more suitable for the serious enterprise, than for independent construction. And you will win at application of aluminum only weight which is not the most important in the houseboat. After all, a small motor to push the house forward at a speed of 10 km / h. it does not matter, the house will weigh 5 tons or 7.  
Steel  is the material from which the hulls of the vast majority of modern ships are made. It is durable, inexpensive, easy to weld and process. Steel housings are not deformed in ice and are able to carry loads dozens of times their own weight.
Don't think that we are trying to advertise steel. We do not sell it, we just have already filled the "bumps" on our own forehead, trying to build floats from all these materials. Believe me, it is very expensive to correct your mistakes later. After all, the new foundation has to be brought under the finished house, and so that the house does not sink during the permutation.
The only case when it is worth thinking about the use of steel for pontoons - is the construction of a floating house for sea water. But for these cases we have other developments.
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The cost of building a beautiful house and ugly is almost the same. Even if you really like what you draw on a notebook, it does not mean that the finished house will look great. If your profession is not an architect, and you do not earn a living by designing house projects, you need to turn to professionals, so that the water does not appear another freak.
If it is not possible to attract an architect, just look on the Internet for a ready-made project or at least a picture of a beautiful land house. It is very difficult to come up with the house of your dreams. Of the hundreds of photos, you will like one, two. That's what it needs to be built.
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A house on the water, in contrast to the "land", is always prone to shaking, as in an  earthquake . This phenomenon destroys large and strong houses on the ground, but our house should not fall apart. And here are the two main misconceptions. Some take a ready-made "land" project, without thinking about   seismic resistance , and the house is gradually covered with cracks. Others build a shed out of planks that will not fall apart, but may skew.
Floating houses have their own specific design features that must be taken into account during construction.
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On luxury cruise liners or luxury yachts, the  size of the cabins is  significantly smaller than the rooms in apartments or mansions. And from this ships do not become less comfortable. Just the feeling of interior space on the ship and in the building is different.
Plavdacha is something in between a yacht and a cottage. Therefore, when designing the area of ​​rooms and ceilings, it is necessary to take into account this specificity. The floating house, built according to the "land" GOST, looks bulky and awkward.  
We will be happy if our mistakes allow someone to avoid them.
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