Photo Mat & Frame Borders
Calculate a mat opening and borders with overlap and optional bottom weighting.
Enter the mat board’s outer dimensions and the actual print size. Overlap hides a small part of each image edge behind the mat. All values are in millimeters.
Mat window opening
294 × 394 mm
Left/right: 53 mm · Top: 53 mm · Bottom: 53 mm
These are geometric cutting dimensions. Confirm the frame’s rebate, mounting method and cutter requirements separately.