Spira international wooden boat plans. following are the stock plans available for the various types of boats, separated into the different categories.. Build a simple wooden boat plans. these plans are called the "anyone’s boat", because as they claim, anyone can build it. you can power it with oars or outboard.. Free wooden boat plans for other sailboats. back in the old days, there were a lot of simple plywood boat plans in magazines, most popular were sailboat plans, canoe plans and kayak plans..