Add Top Layer
Anchor each side of the vinyl to the plywood before you staple it all the way around the board. Start in the middle of one of the long sides, pull the vinyl snug and fasten to the back of the plywood using one or two staples. Move to the opposite side and repeat. Then add a staple or two to the two shorter sides. Before you continue, flip the board over to make sure the vinyl is positioned exactly how you want it. If not, remove the few staples and start over. Continue stapling on the sides and work your way out to the corners. If the material is bunching up in the corners, cut some of it off to get it to lay flat. Use a hammer or mallet if the staples don't penetrate the wood all the way.