Free boat plans for the backyard home builder, plywood and wooden sailboats, rowboats, dinghies motorboats. Boat plans for power, sail and small boats. free boat plans. kits and supplies plus the best boat building technical support.. Free boat plans, online boat plan sources, more than a dozen free boat building plans from the late 1930’s and early 1940’s. (added: 21-apr-2001 hits:.