Plywood boat plans and wooden canoe plans. sailing dinghy . power . row . paddle . overnight. our plywood boat plans and wooden canoe plans are extremely detailed. click on an image for the page or brief details below. Flat bottomed swamp boats: three boats of ancient design. free boat plans and building instructions. published september 12. 2008 last updated september 24. 2008. Clark craft offers hundreds of boat plans, design patterns, and a full line of boat building supplies and accessories for the amateur boatbuilder..