12.4 x 12 inch (31 x 30 cms)16.5 x 16 inch (42 x 41 cms)20.6 x 20 inch (52 x 51 cms)24.7 x 24 inch (63 x 61 cms)28.9 x 28 inch (73 x 71 cms)33 x 32 inch (84 x 81 cms)37.1 x 36 inch (94 x 91 cms)43.3 x 42 inch (110 x 107 cms)49.5 x 48 inch (126 x 122 cms)55.7 x 54 inch (141 x 137 cms)