Stitch and glue is a simple boat building method which uses plywood panels stitched together, usually with copper wire, and glued together with epoxy resin.this type of construction can eliminate much of the need for frames or ribs.. Welcome to spira international home-built boat plans. spira international offers a wide variety of different power, rowing, and sailing skiffs, dories, and other boat designs that are simple to build, rugged and seaworthy.. Proven boat designs, and how-to information for boat building. boat plans are for beginners and have been built by thousands since 1953..