How to Measure

Inside Mount

Inside Mount

Inside Frame Measuring Instructions

Step 1: To find width: Measure the opening across the top, where the headrail is to be installed, from inside of window frame on left to inside of window frame on right.  Measure again in the middle and bottom of the opening. Round the measurement down to the nearest 1/8". A minimum depth of 2 1/2" is needed to install inside the window.  Please note; a 1/2" deduction will be taken from the ordered width to allow for mounting hardware and to ensure the tightest possible fit. 

Step 2: To find height: Measure from the inside top of the opening on the left, at the center, and on the right to the sill; to the closest 1/8" and note the smallest dimension. Do not make any allowances: adjustments will automatically be made so the headrail will fit the opening properly and the vanes will clear the sill by 1/4" to 1/2".

Outside Mount

Outside Mount

Outside Frame Measuring Instructions

Step 1: To find width: Measure the width of the area to be covered at the place where the headrail will be installed to the nearest 1/8". Blind should overlap opening at least 4" on each side to ensure privacy. To maintain maximum view, allow adequate overlap and consider the stack width. No deductions are taken on an outside mount so the blind will come at the exact size ordered. 

Step 2: To find height: Measure the height of the area to be covered and round down to the nearest 1/8". Blind should extend at least 3" above and 3" below opening or window moulding. For installations to the floor, deduct 1/2" from the shortest height for proper clearance. Specifying outside mount measurement means the factory makes allowances for headrail deductions only.

NOTES:
Blinds installed on windows near wall or baseboard heaters must clear the heaters by 12" above and 6" to the side.
Make sure there are no obstructions on either side of the window that may prevent you from ordering a wider blind.

Measure the area to the left and right of each window from the frame to the nearest obstruction (e.g. corner, fireplace, corner window, bookcases).