This box is perfect for holding your 6x6 Paper pads (I have 11 stored in the one shown) and it also holds the larger ribbon spools too! This box was designed to cut on the 12x12 mat. It can be resized to fit the Portrait mat but it will not be able to store the 6x6 mats if scaled down. You can find additional images and a full tutorial on my blog:  http://jamielanedesigns.blogspot.com/2013/07/6x6-paper-storage.html