Picture Frame Mat Calculator
Calculate mat dimensions, frame size, and glass size for picture framing projects.
48.6Kuses
8.5/10(190)
Frame Outer Size
15.00" x 17.50"
Mat Outer Size
13.00" x 15.50"
Mat Opening
7.75" x 9.75"
Glass Size
13.00" x 15.50"
Backing Size
13.00" x 15.50"
Framing Guide
Standard mat borders are 2-3 inches. Bottom mat border is often slightly wider (weighted bottom). Mat opening should overlap the artwork by 1/8 inch on each side.
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Disclaimer: This tool is provided as-is for informational and educational purposes only.