Ranging in length from 7 to 40 feet-so pert and purposeful they seem to have been born on the waves-Devlin’s boats belie the fact that they are built from sheet plywood using wire stitches and epoxy glue. In other words, anyone can build them, and many have. Devlin developed this guide to building boats-his or any other designer’s-from the building instructions he supplies with his plans. It is a mature, shop- and ocean-tested manual, covering everything from sharpening tools to launching the finished boat. Sam Devlin.