Fast-g stitch and glue plywood this quick and easy boatbuilding method consists of plywood planking panels cut to shape from full-size patterns which are. We carry a wide selection of materials used in the composites industry. this often times can make sifting through our offerings difficult, for this reason we have put. Welcome to spira international home-built boat plans. spira international offers a wide variety of different power, rowing, and sailing skiffs, dories, and other boat.