Top: all kayak plans packages are accompanied by a comprehensive and heavily illustrated stitch & glue manual that covers every aspect of plywood. Free kayak plans. we’re offering a free version of our laker kayak. these plans are designed to be simple to assemble but perform well on. Stitch-and-glue construction, along with the development of epoxy and modern mahogany marine plywood, has revolutionized and revitalized wooden boat building. this.