WALL ART TOOLKIT GUIDE
What Size Frame for a 20×30 Picture?
Find the right frame for a 20×30 inch picture. Compare no-mat and matted options, calculate the required frame opening and check the 2:3 ratio.
Quick answer: A 20×30 inch picture fits a nominal 20×30 inch frame without a mat. If you want a mat, choose a larger frame and size the mat opening to the artwork; a 24×36 frame is a common larger 2:3 option, but it is not a no-mat fit.
20×30 frame size calculator
20 × 30 in picture → 20 × 30 in nominal frame without a mat.
With a mat vs. without a mat
No mat
Start with a 20×30 frame. Confirm the manufacturer’s actual opening and frame lip because a small edge overlap is normal.
With a mat
The frame must be larger than 20×30. Choose the visual border first, then confirm that the resulting outer mat dimensions match a frame you can buy.
Why 20×30 is easy to scale
20×30 is a 2:3 ratio. Other 2:3 sizes include 12×18, 16×24 and 24×36, but a matching ratio does not mean the frame is the same physical size.