MEASURING YOUR OPENING

Measure the clear glass surface of your window three times, first vertically (height), then horizontally(width), and finally diagonally. Each time measure in three places vertically, 3 places horizontally and finally diagonally (2 places) as shown.

This will give you the dimensions of the Actual Opening.

When I build your panel I will deduct 1/8 off the height, and 1/8 off the width. This gives me the size to build your panel.