how to buy curtains for sliding glass door?
['To a door 60 inches wide, add 5 inches for a curtain panel 65 inches wide.', 'To a door 72 inches wide, add 8 inches for a curtain panel 80 inches wide.', 'To doors greater than 72 inches wide, add 8 to 12 inches to the door width. Wider doors should have a larger stacking distance.']