Curtain Width Formula:
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The curtain width calculation determines the appropriate width for each curtain panel based on your window measurements, desired number of panels, and the gather (fullness) you want in your curtains.
The calculator uses the curtain width formula:
Where:
Explanation: The formula calculates the width each panel needs to be to achieve your desired fullness when installed.
Details: Correct curtain width ensures proper coverage, aesthetic appearance, and functionality of your window treatments.
Tips: Measure your pole/track length accurately. Choose gather based on desired fullness (1.5 for light gather, 2-2.5 for standard fullness, up to 3 for very full curtains).
Q1: What is a typical gather value?
A: Standard gather is 2-2.5 times the window width. For a more gathered look use 2.5-3, for less fullness use 1.5-2.
Q2: How do I measure pole length?
A: Measure the full length of the curtain rod or track from end to end, excluding finials.
Q3: Should I account for overlap in the center?
A: Yes, add 2-4 inches to your window width measurement to ensure proper coverage when curtains are closed.
Q4: What if I'm using a single panel?
A: For one panel, the width should be the pole length × gather. Most single panels need 1.5-2× gather.
Q5: Does this work for all curtain types?
A: This works best for standard drapes. Sheer curtains may need more gather (3×), while some modern styles may use less (1×).