Stitch-and-glue boat building, along with the development of epoxy and modern mahogany marine plywood, has revolutionized and revitalized wooden boat building.. Hi milos, plywood used for kayak on pictures and videos is a regular one. this same non waterproof plywood is used in doubletrouble too. and for more then a 3 years. Tuition: $800. note: this is a five-day course ending friday afternoon. the “stitch-and-glue” construction method is the easiest way to build a boat, as tens of.