Boat plans: boat plans from 36 designers and counting. sail, row, power, paddle—we are sure you will find the perfect boat.. Boat plans for the 40 this boat is easy to build using our downloadable boat plans. our boat plans are available for instant download so you can start building. Waterfowl-works llc is the leader in duck boat design and manufacturing with over a decade of experience in duck hunting boat manufacturing and design. we build.