Skin on frame boatbuilding method. skin on frame refers to a method of boatbuilding that has been around for a very long time. typically a light frame often made of. Free plans from bateau.com free plans for a 14′ canoe. this boat uses only 2 sheets of plywood! the file includes a step by step tutorial on reading boat blueprints. Dragonfly model 2-man lightweight johnboat. the dragonfly is built as a skin-on-frame boat, meaning you construct the frame first, then apply the ply skin..