Stitch-and-glue construction, along with the development of epoxy and modern mahogany marine plywood, has revolutionized and revitalized wooden boat building. this. 12ft length overall by 4ft beam, by 400lbs displacement, designed for stitch and glue construction using 1/4in or 3/8in 4ft by 8ft plywood if you build this boat. Links to boat plans some free boat plans, boat building information including plywood stitch and glue. full range of boat plans from sophisticated yachts to plywood.