Welcome to our marine plywood online store! why marine plywood? small boats: while small stitch and glue boats can be successfully built with inexpensive. Other than "how much does it cost?" and "how long will it take?", most questions we receive concern wood and plywood. we will be adding the. Outboard runabouts, hydroplanes, and speedboat plans and kits for a variety of construction methods designed for the home boat builder..