1. What is the Curtain Fabric Calculation?

The curtain fabric calculation helps determine how much fabric is needed to make curtains based on window dimensions and desired fullness. It accounts for width, drop (length), and number of panels.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( Width \) — Total width of the window treatment (inches)
• \( Drop \) — Length from top to bottom of curtain (inches)
• \( Panels \) — Number of fabric panels needed
• 36 — Conversion factor from square inches to square yards

Explanation: The equation calculates the total fabric area needed and converts it to yards, accounting for multiple panels.

3. Importance of Accurate Fabric Calculation

Details: Proper fabric calculation ensures you purchase enough material for your curtains while minimizing waste. It's essential for budgeting and pattern matching.

4. Using the Calculator

Tips: Measure your window accurately, including any extra width for fullness (typically 1.5-3 times the window width). Don't forget to account for hems and headers in your drop measurement.

5. Frequently Asked Questions (FAQ)

Q1: How much extra fabric should I add for pattern repeats?
A: Add one full pattern repeat per drop for large patterns, or 10-15% extra fabric for small patterns.

Q2: What's the standard fullness ratio for curtains?
A: Standard fullness is 2-2.5 times the window width for a luxurious gather.

Q3: Should I add extra length for hems?
A: Yes, typically add 8-12 inches (4-6 inches for top and bottom hems).

Q4: How do I calculate fabric for lined curtains?
A: Calculate the lining fabric separately using the same formula (often slightly shorter than main fabric).

Q5: What if my fabric width is narrower than my window?
A: You'll need to join multiple widths - calculate panels accordingly.