This is your woodworking search result for free plywood boat plans woodworking plans and information at woodworkersworkshop®. How to make the most out of your one sheet boat. the ultimate one sheet boat, prism: discussion on maximising the displacement. free boat plans and building instructions.. 11’6" eider duck punt: the eider is a simple plywood duck punt suitable for river and canal rowing and some quiet fishing. we have given her a small transom stern to.