Easy to build plywood and wooden boats with an emphasis on lightness and excellent performance. our plans teach you all the methods needed. you become a knowledgeable boatbuilder while building your own boat!. Arch davis design – offering boat plans, kits, videos and dvds for the amateur boat builder including sail boats, row boats and power boats.. Specmar inc (previously specialty marine contractors) is an aluminum boat design, lofting, and kt company. we have a large product line including aluminum drift boats, aluminum landing craft, aluminum monohull boats, aluminum catamarans, aluminum special purpose boats, and aluminum ribs (rigid inflatable boat)..