Getting a perfect fit for your window shades starts with one thing, accurate measurements. Whether you’re shopping for window shades or blinds, a few careful steps can make the difference between a polished, custom look and a covering that feels “off.” The good news? You don’t need to be a pro to measure like one.
Decide on inside or outside mount
Before you grab your tape measure, decide if your shades will be mounted inside the window frame or outside it.
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Inside mount: Fits within the window frame for a clean, built-in look.
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Outside mount: Covers the window and frame for maximum light control and privacy.
Your choice affects how you measure, so make this decision first.
Tools you’ll need
You won’t need much, just:
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A steel tape measure (for accuracy)
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A step stool or ladder for higher windows
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A notepad or phone to record measurements
Measuring for an inside mount
When mounting inside the frame:
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Measure the width at three points, top, middle, and bottom. Use the smallest measurement.
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Measure the height at three points, left, center, and right. Use the longest measurement.
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Check depth to ensure the shade will fit inside the frame without protruding.
Measuring for an outside mount
When mounting outside the frame:
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Measure the width you want the shade to cover. Add at least 2–3 inches on each side for better light control and privacy.
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Measure the height from the top of where the shade will be mounted down to where you want it to end.
Tips for accuracy
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Always measure to the nearest 1/8 inch, tiny differences matter.
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Double-check every measurement before ordering.
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Record width first, then height (W x H).
Common measuring mistakes to avoid
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Guessing instead of measuring: Even if your windows “look” the same, measure each one.
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Using a cloth tape measure: It can stretch and lead to errors.
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Forgetting to note mount type: This can result in shades that don’t fit as intended.
When to call in the pros
If your windows are unusually shaped, extra large, or set in tricky spots, a professional measuring service can ensure perfect results. They’ll also account for any quirks in your home’s construction.
Taking a few extra minutes to measure properly can save you time, money, and frustration. Whether you’re after a sleek inside mount or a bold outside mount, accurate numbers are the key to shades that look and function exactly as you want.
Ready to order perfectly fitted shades? Explore our window coverings to find the perfect match for your measurements.
