Arch davis design – offering boat plans, kits, videos and dvds for the amateur boat builder including sail boats, row boats and power boats.. 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. Just looking at a common boat plan it’s easy to see why so many things can go wrong. other than getting feet, inches and eighths of inches onto timber at full size.