Room Darkening Curtains

Measure your curtain rod, not the window. For a full, gathered look, pick panels that add up to 1.5 to 2 times that width.

Measure from the top of the rod to where you want the curtain to end: the sill, just below it, or the floor.

24 to 36 in. for kitchen tiers, 63 in. for sill length, 84 in. for most rooms, 90 in. and up for tall windows.