We can offer any size you want. Please use following price list and rate, then according to size you want, calculating price by yourself. If you have any question please contact E-Mail:gordon@263.net.cn.
If the size is under 24x48 inch, list price includes air mail cost. For any bigger size, we have to use FedEx or DHL delivery, then please add US$50 for first piece, and US$20 for every one more piece.

Size inch	12x16	16x20	20x24	24x36	24x48
Size cm	30x40	40x50	50x60	60x90	60x120
Price US$	100	110	130	160	200
price US$ per square inch	0.52083	0.34375	0.27083	0.18519	0.17361
Price US$ per Square cm	0.08333	0.055	0.04333	0.02963	0.02778

1.00 inch=2.54 cm