How to Measure for Blinds
Fabricana | Date posted: March 1st, 2013
The way you measure for blinds depends on whether they will be mounted inside or outside the window frame, and specialty blind shapes and applications require different measuring procedures. Here are a few tips for properly measuring for blinds.
For Inside Mount Blinds:
- Be sure the window opening is deep enough to install the mounting bracket.
- Measure the width inside the window opening at the top, middle, and bottom (in case they’re different widths), and record the shortest width to the nearest 1/8” (approx. 1/4 cm). The top measurement is critical to ensure the head rail fits.
- Measure the height inside the window opening at left, right, and centre, and record the longest height to the nearest 1/8” (approx. 1/4 cm).
- Also measure the window on its diagonals. If the two diagonal dimensions are not exactly the same, it may be necessary to use an outside mount for optimal fit, light control, and privacy.
For Outside Mount Blinds:
- Measure the desired width and height, taking into account the requirements for mounting the bracket attachment when measuring the height.
- To minimize light leakage, the shade should overlap the window opening at least 2″ (5cm) on each side and at the bottom.
Final Pro Tips:
- Always use a ¾” (1.9cm) or 1” (2.5cm) steel tape measure.
- Don’t assume a window is square or level.
- Measure the exact dimensions, as each window opening is unique.
If you are ever unsure about how to measure, you can always have a professional installer come do it for you — this service is available at most stores that sell custom or made-to-order blinds.
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