Standard Mat Opening Widths & Sizes for Frames

24x36 inch precut matboard with 11x17 inch opening for standard sized 24x36 inch frame

Standard photo mat and frame sizes Standard picture frame sizes, Picture frame sizes, Picture frame mat

Post Card Mat 8 X 10 Frame Size Cut for Standard Post Card or 3 1/2 X 5 1/2 Print White Black White With Black Core

Picture Framing: Standard Sizes And General Guidelines

USA - Choosing Mat Size

14x15 Cardinal / Rouge Custom Mat for Picture Frame with 10x11 opening size (Mat Only, Frame NOT Included)

US National Park Map Art Print – Angela Staehling

4x16 Versailles Silver Wide With Black Trim picture frame

Photo Mats - How to Buy and Select the Right Size Matboard

6x25 Octoberfest Custom Mat for Picture Frame with 2x21 Opening Size : Electronics