1. What is the Window Curtain Fabric Yardage Calculation?

The Window Curtain Fabric Yardage calculation determines how much fabric is needed to make curtains based on the window dimensions and desired hem length. It accounts for both the vertical drop and horizontal width of the curtains.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( Drop \) — Vertical length of the curtain (inches)
• \( Hem \) — Additional length for hemming (inches)
• \( Width \) — Horizontal width of the window (inches)
• 36 — Conversion factor from inches to yards (1 yard = 36 inches)

Explanation: The equation calculates the total fabric area needed (including hem allowance) and converts it from square inches to yards.

3. Importance of Accurate Yardage Calculation

Details: Proper yardage calculation ensures you purchase enough fabric for your curtains while minimizing waste. It's essential for cost estimation and project planning.

4. Using the Calculator

Tips: Measure your window carefully. Include the hem allowance in your calculations. For patterned fabrics, you may need additional yardage for pattern matching.

5. Frequently Asked Questions (FAQ)

Q1: Should I add extra for pattern repeats?
A: Yes, if using patterned fabric, add the pattern repeat measurement to your drop calculation for each curtain panel.

Q2: How much hem allowance should I include?
A: Typically 4-8 inches (2-4 inches for top hem and 2-4 inches for bottom hem).

Q3: What if my fabric width is narrower than my window?
A: You'll need to join multiple widths of fabric. Calculate yardage for each width separately.

Q4: Should I include curtain fullness in this calculation?
A: No, this calculates flat fabric yardage. For fullness, multiply the width by your desired fullness factor (typically 1.5-3x) before calculating yardage.

Q5: How do I account for multiple curtain panels?
A: Multiply the final yardage by the number of panels needed.