Some paper was not 12 x12
I was using this paper as photo mats for a baby book. I cut four 5x7 from each sheet. I’ve never had an issue with this brand before so was quite surprised that some of the sheets were about an 1/8” off on one side, measuring 11 7/8” at top and 12” at bottom. I had to modify the size of my mats so was still able to use this paper