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.. This jon boat buyers guide in a frequently asked questions format is for jon boat sized eight to fifteen feet. are jon boat ratings or jon boat reviews worth reading?. How fast does it go? for estimating the speed for small outboard planing boats see planing speed boat chart. this chart should be used for general estimates only..