Our Artwork sizes A4 Size: 21X30CM / 8x12in 30X40cm: 12x16in A3 Size: 29x42cm / 12.16.5in 40x50cm: 16x20in A2 size: 42x60cm / 16.5x 24in 50x70cm: 50x70cm / 18x24in A1 size: 60x80cm / 24x33in