How to Measure Your Windows
Follow this guide to get a perfect fit every time — inside or outside mount.
Quick Measuring Tips
Use a Steel Tape Measure
A steel tape measure is the only accurate tool for measuring windows. Cloth or plastic tapes can stretch and give inaccurate readings.
Measure Width First
Always measure width (horizontal) before length (vertical). Measure in three places — top, middle, and bottom — and use the narrowest measurement.
Measure Length in Three Places
Measure length on the left, center, and right side. For horizontal blinds, use the longest measurement. For vertical blinds, use the shortest.
Measure to the Nearest 1/8"
Always record your measurements to the nearest 1/8 inch. Do not round up or down — precision matters for a perfect fit.
Inside vs Outside Mount
Inside mount fits inside the window frame for a clean look. Outside mount overlaps the frame — add at least 1.5" on each side for proper coverage.
Do NOT Deduct for Inside Mount
Inside mount blinds have a factory deduction already built in. Measure the exact opening and we handle the rest — never subtract anything yourself.
Ready to Order?
Once you have your measurements, browse our full product catalog and order custom-made blinds.