How to Measure for Your Blinds & Hardware

Allows you to mount the shade inside the window casing so that the headrail sits back into the window casing
Emphasizes the actual size of the window, and allows trim work to be visible
Requires a minimum depth clearance to mount inside the frame, note your depth clearance before purchasing

Allows you to mount the headrail above the window casing or on molding
Gives the illusion of a longer and wider window and can make a narrow window look larger
May be necessary if the window is not deep enough to contain at least the shade or blind mounting brackets

Measure window accurately and remember that all windows are not perfectly square.
For custom ordered product, you will need to order your blind or shade specifically as an inside mount or outside mount.

Measure the exact distance between the inside surfaces of the window frame at the top, middle and bottom, and use the narrowest width.
Do not make any width deductions. The factory will make the necessary deductions.
Measure the height of the window from the top of the opening to the sill in 3 places. Use the longest dimension for the blind height.

To find the width, measure the outside width of the window frame. Add at least 3 inches for overlap (1-1/2" per side).
To find the height, measure from the sill to the position of the top of the shade. If there is no sill, measure to where the blind is to reach.

Measure the exact distance between the inside surfaces of the window frame at the top, middle and bottom, and use the narrowest width. The factory will automatically deduct 1/4-inch 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 blind height. The factory will automatically deduct 1/8 inch.

To find your Outside Mount measurements, measure the exact width of the door or window. A minimum overlap of 4 inches on each side is recommended. Outside mount projection brackets are recommended for patio doors with projecting handles.

Measure the width of your window treatments, taking into account if you want to mount hardware on the wall or directly on the window trim.
Allow 1 1/2" - 3" on each side of the window for when the drapes are completely open.
Be sure to consider extra wall space needed for decorative finials, as the rod dimensions do not include additional width added by each finial.
To make the windows appear larger, mount the curtain rod 6" above the trim and allow the rod width to extend 3" beyond the window's actual width.