Welcome to spira international home-built boat plans. 13′ western style drift boat; 14′ stitch and glue kayak; 18′ carolina style dory; 14′ midwestern style drift. Stitch and glue kits are a must for building our stitch and glue boats. boat plans catalog. Stitch and glue boat building: definition: a stitch and glue boat hull is made of plywood panels assembled with fiberglass tape. contrary to traditional boat building.