Classic wooden boat plans is a growing collection of established plans that are ready to be printed and then laid out for full size building. unlike other plans, you. Updated: june 8, 2017. new video of the recently completed "aqua sport cruiser" added. plans now available at duckworks boat builders supply, click below.. Welcome to spira international home-built boat plans. spira international offers a wide variety of different power, rowing, and sailing skiffs, dories, and other boat.