Spira international wooden boat plans. following are the stock plans available for the various types of boats, separated into the different categories.. Boatplans.dk – online free and inexpensive boat plans for canoes, small boats, sail boats, motorboats and powerboats. download boat plans right away. – boatplans.dk – boat plans for canoes, small boats, sail boats and motor boats. Free plans: the 13′ rowing dory assay (free downlaodable plans with full-size pattern from classic wooden boat plans); absolutely free plans (links to free online boat plans).