Our Weatherproof Matte (WJ) and Weatherproof Gloss (WI) inkjet materials are not available in a large format at this time. Currently, these materials are only available in 8.5" x 11" and 8.5" x 14" sheet sizes. We're always looking for new and exciting products we can offer to better serve our customers, so we've gone ahead and forwarded your request to our Product Development Team.