UK Biz Printing A1 posters 841 x 594mm printing service fast turnaround and printed at high resolution for the best quality finish. Our large format A1 posters printed on silk, gloss paper stock for indoor use or short term outdoor use. For outdoor posters we use 220mic or 400mic PVC matt poster material for long lasting outdoor use and don’t need laminating. Our indoor posters can be laminated with a gloss or matt finish for long lasting indoor use. Use these posters to replace your adverts on you A-Boards shop windows snap frames, the option to print on a variety of sizes from A1, A2, A3, A0, 40 x 30 and 60 x 40 inch posters.