This is our premium build with 1/8″ thick aluminum sidewalls 1″ high, welded and riveted bottom plate and heavy duty rubber feet. Two layers of tiles made from volcanic rock fiber. It is the newest addition to the square line up. We learned that many customers did not need a 24″ size. Inside dimensions are 21″ x 21″. Shipping in U.S. — $24.00 Shipping in Canada — $45.00
