Drift boat plans free shipping to us & ak • $30 shipping to canada • please use the "contact us" page for ordering or. Boat plans for the 13 this 13′ flat bottom skiff is a real workboat. it is so easy to build that you can build it in a day (maybe add a few days for fairing and. Spira international wooden boat plans. following are the stock plans available for the various types of boats, separated into the different categories..