Measure the width of the window and add 4" to each side for light blockout and privacy. Give this measurement when ordering. Measure the exact height of the window in 2 places. Use the greater height. Add the recommended overlap of 3" top and bottom for a total overlap of 6". Give this measurement when ordering.

Measure the width of the window at the top. The factory will automatically deduct 1/4" for clearance. Measure the height of the window from the top of the opening to the sill in 3 places. Use the smallest dimension for the shade height. The factory will automatically deduct 1/8".

Follow the Inside Mount instructions above with exceptions noted here. For wall-to-wall installation, specify exact width at ceiling height, factory will automatically deduct 1/4". For ceiling to floor shades, measure to the top of the carpet pile in 3 places, use the smallest measurement. Factory will automatically deduct 1/4".

Measure the exact width of the patio door. A minimum 4" addition on each side is recommended.