We are looking at installing a flooring similar to the one in this photo. We will cut plywood to 4 by 4 feet tiles and have them painted in this checkboard design. Any advice on how to lay/install them? It's going in a retail basement so half of the floor is concrete and half is subfloor. Could we just PL it to the flooring? Could we nail gun it in and woodfill the nail holes before we paint the tiles?