Free full size diy pram dinghy plans for plywood and fibreglass stitch and glue method.. Sabotina: an 8′ sail/row plywood pram. an 8′ sail/row plywood pram build in glen-l marine designs / www.glen-l.com / boat plans for the. Free plywood pram plans. the pram is built on a simple form. the bow and transom form remain to be the actual boat. i have scanned and clarified the pages with the.