Why do i have register to get the free boat plans? basically i would like to know my visitors and have the opportunity to get in contact with you.. Plywood for boat building. apa technical sheets. the following are technical data sheets from the american plywood association. plywood grading in the us is not. 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.