Our general work boat plans for the 21-inch hull features detailed work boat design plans of the g21 boat series. get wooden boat plans free at bateau!. Atkin & co boat plans, boat designs, boat building, william atkin, john atkin, billy atkin, small boats, good boats. Boat plans catalog – 300 boats you can build! boatbuilding supplies & epoxy; inboard hardware; new – electrical design plans; books, dvd’s & audio.