going to price sheets of aluminum today.. I had a 1/8" 3'x3' piece in the basement and I laid it in the boat and stood on it and was good.. if the price is in the ballpark or even 100 bucks more the labor of using cost waterproofing is non existent.. just cut to fit and rivet it down.. and it i want glue some indoor outdoor carpet down and no rot ever again... I need 2 pieces 4' x 61" and 1 piece 17 1/2" x 60"