Imagine what two weekends, the plans for this fast build pirogue and two sheets of plywood will do? you will be ready for going out on adventure.. General purpose 21′ hull, several wood boat plans to choose from. learn how to build a plywood boat with any of these options: work boat, tour boat, bass boat, deck. This boat is easy to build using our downloadable boat plans. our boat plans are available for instant download so you can start building right away..