I have just begun to create contact prints of my 4x5 negatives and I am looking into buying some mats for them. I currently have a bunch of 5x7 mats that have openings for 4x5 prints, but they seem kind of small. I am thinking a mat of 8x10 or 11x14 might be a better fit so when you are looking at the print the frame is not getting in the way. Do people mount these things to a mat the size of 11x14 or would an 8x10 mat be more suitible. It is hard to tell from what i see on the net without having two mats in front of me. Thanks for any info.