Answer
Sep 11, 2024 - 05:36 PM
The mat opening of a window frame counter mat refers to an unprinted area on the plastic, allowing visibility of items placed between the backing and the protective anti-scratch surface. The rest of the mat, essentially the frame, can feature your promotion, logo, or information. The window opening is determined by the artwork, though there are relatively "standard" sizes usually based on the insert size. We recommend making the window slightly smaller than the insert to cover its border and eliminate any visible background, thereby enhancing visual appeal. The only necessary limitation for window sizing is ensuring sufficient space for glue to adhere the printed laminate to the mat's backing. Standard table of Window sizes:
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| STD MAT SIZE | STD WIN SIZE | INSERT SIZE | MAX WIN SIZE | MAX INSERT SIZE |
| 10" x 15" | 5¼" x 8¼" | 5½" x 8½" | 8" x 13" | 8¼" x 13¼" |
| 11" x 17" | 8¼" x 13¾" | 8½" x 14" | 9" x 15" | 9¼" x 15¼" |
| 12" x 18" | 8¼" x 13¾" | 8½" x 14" | 10" x 16" | 10¼" x 16¼" |
| 13" x 19" | 10¾" x 16¾" | 11" x 17" | 11" x 17" | 11¼" x 17¼" |
| 14" x 19" | 10¾" x 16¾" | 11" x 17" | 12" x 17" | 12¼" x 17¼" |
| 16" x 20" | 10¾" x 16¾" | 11" x 17" | 14" x 18" | 14¼" x 18¼" |
| 17" x 26" | 10¾" x 16¾" | 11" x 17" | 15" x 22½" | 15¼" x 22¾ |
