Create your own custom rack to store lumber and plywood. With a minimum of two solidmaple uprights you begin building the perfect storage solution for your needs. Each uprightis 84"H and has five 20" long, 1-1/4" diameter iron pipe arms. As you add uprights, you addstorage. Each upright is designed for mounting directly to the wall, but with the optional steel wall spacer brackets (anchored at top and bottom), the rack places the upright 16" from the wall, offering alternate plywood storage.