Week-end skiff 12 – row boat for plywood stitch and glue, tack and tape or foam sandwich. this diy plywood boat can be built in one long week-end.. Find great deals on ebay for plywood boat plans and wooden boat plans. shop with confidence.. A new lightweight 12ft plywood dinghy under development. this prototype by canadian rick landreville. it won’t have a cloud of sail area,but will be light.