The gallery wall mockup features a set of 5 medium thick frames that are easy to move and remove, so you can use the pre-made gallery wall layout or customize it to your own needs. GALLERY WALL FRAME MOCKUP | SET OF 5 FRAMES. Sizes: 12x16, 16x12, 8x10, 10x8, 10x10 inches. Aspect ratios: 3:4, 4:3, 4:5, 5:4, 1:1. Fully customizable and easy to use.