Picture Framing tip - Choose a Double Mat Apr 8th 2019 Myron Arndt Many artists, photographers and more - when considering picture framing - ask about what advantages are gained by a double mat versus a single mat on photos or artwork. Note: A double mat is defined as two mats one on top of the other (2 l Tags: #double mat #double matte #matting tip #matting for pictures #picture mats #picture framing