Inside Mount
Windows can be slightly uneven. Follow these steps for the best fit.
Width (W)
Measure the inside of the frame at the top, middle, and bottom. Use the smallest measurement and subtract 1/4 inch. If that exact size is unavailable, round down to the nearest size.
Height (H)
Measure the inside of the frame on the left, middle, and right. Use the largest measurement and choose a size that matches or exceeds it.
Depth (D)
A minimum depth of 1 3/4 inches is required. If less, choose an outside mount.









