Holidays and Traditions What are standard framing sizes? What are standard framing sizes? Frame Size Mat Opening Image Size ---------- ------------- ---------- 11" x 14" 7.5" x 9.5" 8" x 10" 16" x 20" 10.5" x 13.5" 11" x 14" 20" x 24" 15.5" x 19.5" 16" x 20" 24" x 36" 19.5" x 29.5" 20" x 30" Related Posts:attic ladders, Ladders, The Home Depot, Werner's Easy Access Attic Ladder 5 - Cut Ceiling Joists, things to consider before buying an attic ladderCan you hang art on slanted walls? How to Hang Paintings on Sloped Walls is an eHow.There is a yoga mat.How To A yoga mat needs to be cleaned.