Love the product but in the information there is no mention that you need to add matting. The 8X10 frames are actually 9 1/2 X 11 1/2 so even if you put an 8 1/2 x 11 sheet of paper for matting the entire glass is not covered, thus you need to add matting to fit the entire frame. Ofcourse, if you want the wall to show through the glass then this is not an issue, but you'll need to cut the cardboard inserts that hold pictures in place to match the size of your photos.