Outside Mount-width
Measure area you want the shade fabric to cover. Shade should overlap window 1 1/2" on each side for best light control. Order that size as outside mount.

Note: Shades are available in standard lengths of 66". Shade fabric does not go to the end of the roller. It is approximately 3/8" narrower on each side.

Outside Mount-width
Measure width of area to be covered, overlapping window by at least 1 1/2" on each side. Measure to desired length from top of casing or at least 2" above the window if there is no casing.

When rods are already installed
Measure the rod width, including the corners, and add 4" so the center can overlap when the draperies are closed. Ready-made draperies come in standard lengths of 54", 63", and 84". To determine which length you need, simply measure the length from the top of the standard (white) traverse rod, or from the "eye" of the carrier on a decorative traverse rod.