Boat plans in book form. concise step by step instructions to build a 20 to 24 foot plywood / epoxy stitch and glue skiff. 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. plywood panels are cut to shape and stitched together to form an accurate hull shape without the need for forms or special tools.. Spira international wooden boat plans. following are the stock plans available for the various types of boats, separated into the different categories..