Browse our selection of canoe plans. we have ultra-light pack canoes, classic double-paddle canoes, and beautiful lapstrake canoes. choose from strip-planked or. Welcome to spira international home-built boat plans. spira international offers a wide variety of different power, rowing, and sailing skiffs, dories, and other boat. The wood duck 12 hybrid substitutes cedar strips for the standard plywood deck, while the stitch-and-glue hull and underbody is identical to the standard version..