Build a flat bottom jon boat plans . these plans are to build a flat bottom fishing jon boat. fisherman who like to work the shallow backwaters and weed. 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.. A small v hull boat is known for it’s ability to cut through the water and provide a smooth drier ride. however, if you sit in front or overload it with weight, at a.