Intro: the bo-at single sheet plywood boat. my son and i built this simple one sheet plywood boat following the plans and sage advice provided in the following link. One sheet skiff to download plans click here. (one sheet skiff). this boat is made from only one sheet of 1/4 plywood and about 5 eight foot long 1×2’s.. 18′ one sheet canoe, the "dug" free plans and building instructions small boats, like these one sheeters, are usually made out of thin plywood..