16.8 x 12 inch (43 x 30 cms)22.4 x 16 inch (57 x 41 cms)28 x 20 inch (71 x 51 cms)33.6 x 24 inch (85 x 61 cms)39.2 x 28 inch (100 x 71 cms)44.8 x 32 inch (114 x 81 cms)50.4 x 36 inch (128 x 91 cms)58.8 x 42 inch (149 x 107 cms)67.2 x 48 inch (171 x 122 cms)