Probably the most important step in ordering your new blinds is accurate measuring. While most windows are pretty straight forward, some have obstructions or multi-level framework that will affect how your blinds will mount. Also different blinds require different mounting depths. The following guide will take you through the important steps on successful measuring and point out commonly overlooked details.

  • The first rule is you must use a steel measuring tape, not that cloth one from a sewing kit! Cloth can stretch or shrink and must never be used to measure for blinds. Please don't cheat.

  • Next have someone fun help you since big windows can be tricky. They can hold one end while you walk to the other side. The reason for this is, if the tape bends or droops slightly, it will throw off your measurement enough to possibly make for a tight fit or no fit.

  • Always measure and write down width (left to right) first and length (up and down) second.
    See example 1. (Use inches instead of feet and measure to the 1/8 of an inch.)

Inside Mount : The term used for blinds that will fit inside the window frame. Measure at least 3 different locations for both width and length.
Do not make any deductions. Factory will make appropriate deductions.

Mini, Wood Blinds, and Shades: use the smallest width and the longest length. If you prefer the blind does not touch the sill, then deduct 1/4 inch from length only.

Vertical Blinds:
use the smallest width and the shortest length.

When measuring for inside mount be aware of alarm security devices which can obstruct bracket mounting. Also window locks or crank handles which may interfere with blind placement.

example 1
Outside Mount : The term used for blinds that will mount on the wall and overlap the window. The amount of overlap will depend on the kind of blinds and your personal preference.

Mini, Wood Blinds, and Shades: 2 to 3 inches above and 2 to 3 inches below. At least 1 inch per side but you may prefer a little more for looks or privacy.

Vertical Blinds: 3 inches above and about 3 inches below (or to preference.) At least 4 inches per side but this depends greatly on privacy, stacking, and available space.

When measuring for outside mount around kitchen cabinets or closet doors, be aware of clearance and make necessary allowances.