This is an enlarged version of the flat skiff 11′ 6". she requires two more sheets of plywood but is still very easy and fast to build. if you ever thought of buying. Using one of these boat plans, you will be able to build the boat you have dreamed of for years. these boat plans come in many variations and there are powerboats. Free plans: absolutely free plans (links to free online boat plans) ariawood boat works (plywood punts, jonboats and one-sheet boats) architectura navalis mercatoria.