Standard: 2' x 3', 3' x 4', 3' x 5', 3' x 10', 3' x 12', 3' x 16', 3' x 20', 4' x 6', 4' x 8', 4' x 10', 4' x 12', 4' x 14', 4' x 16', 4' x 20', 6' x 8', 6' x 12', 6' x 16', 6' x 20' (dimensions may vary slightly)