This is the boats, dories and other watercraft category of information. this free woodworking plans list features an extensive list of free building projects to. A 12 ft skiff a 12′ two sheet skiff. yet another way of chopping up two sheets of plywood, to come up with a very easy-to-build, yet good looking and versatile 12 ft. The one sheet challenge! the ongoing saga of the quest for a two person one sheet skiff…?.