Http://spirainternational.com/ ever think about building a boat or kayak? the spira international website sells plans to build boats from 7′ to over 30′ of. Links to boat plans some free boat plans, boat building information including plywood stitch and glue. full range of boat plans from sophisticated yachts to plywood. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. easily share your publications and get.