Free pontoon boat plans. well look what we have cooking here: free plans to make your own pontoon boat! length: 12′ (3.7 m). Wooden boat plans for amateur boatbuilders – excellent performance, simple construction, step by step instructions australia, usa, uk, hungary, s. africa. The task was simple: design a fun, family boat that’s easy to drive through the water and yet is as stable as a flat-bottomed row boat. the result is this stylish.