We have power boat building designs of all types such as power cats, cruisers, and more. view jon boat deck plans & boat cabin plans for more details.. Proven boat designs, and how-to information for boat building. boat plans are for beginners and have been built by thousands since 1953.. 25′ cabin cruiser . build your own floating paradise. outboard motor cart . move your outboard around and store easily with this cart. flat bottom jon boat.