Measuring doors for a perfect fit
Place door front side down on a table so the back of the door can be easily measured.
With a tape measure, determine the exact width and height of the glass opening on the back side of the door as shown in the illustration. Please measure to the nearest 1/16".
Deduct 1/8" from the exact opening size. This will allow a little room for the glass to fit in the opening properly.
Always record measurements Width x Height.
This is important because glass textures always run vertically. (Unless otherwise specified)
In the photo above, the opening width is exactly 11-3/16".
The proper glass width you should order is 11-1/16".
Installation Instructions for Transoms with Wood Frame