๐ผ๏ธ Picture Frame Mat Calculator
Any consistent unit works (e.g. cm) โ just use the same unit for all values.
Enter your artwork's (photo or print) width and height, how much the mat should overlap the edges of the artwork, and the mat's border width, to calculate the mat's window opening size and the outer size needed for framing.
How to use
- Enter the artwork's width and height.
- Enter the overlap โ how much the mat opening should cover the artwork's edges (typically a few mm).
- Enter the mat's border width.
- The mat's opening size and outer size are calculated automatically.
FAQ
What is the overlap?
It's how much smaller the mat's window opening is than the artwork, so the mat slightly covers the artwork's edges. This hides the edge of the artwork under the mat for a clean, gap-free look. Enter whatever amount you prefer.
What does the outer size represent?
It's the overall size of the mat โ the size your frame's inner opening needs to be. It equals the artwork size plus the border width added on all four sides.
What formula is used?
Opening width = artwork width โ 2รoverlap, opening height = artwork height โ 2รoverlap. Outer width = artwork width + 2รborder width, outer height = artwork height + 2รborder width โ simple arithmetic on all four sides.