1. What is a Wallpaper Yardage Calculator?

Definition: This calculator estimates the amount of wallpaper needed based on wall dimensions and wallpaper roll specifications.

Purpose: It helps homeowners and interior designers determine how many rolls of wallpaper are required for a project.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Y \) — Yardage of wallpaper needed (yards)
• \( H \) — Height of the wall (yards)
• \( Roll\_H \) — Height of wallpaper roll (yards)
• \( Repeat \) — Pattern repeat length (yards)
• \( W \) — Width of the wall (yards)
• \( Roll\_W \) — Width of wallpaper roll (yards)

Explanation: The formula accounts for both vertical drops (considering pattern repeats) and horizontal coverage.

3. Importance of Accurate Wallpaper Calculation

Details: Proper calculation prevents over-purchasing (saving money) and ensures you have enough material to complete the job (especially important with patterned wallpaper).

4. Using the Calculator

Tips:

• Measure wall dimensions carefully in yards
• Check wallpaper roll specifications for height/width
• For patterned wallpaper, include the repeat length
• Add 10-15% extra for pattern matching and waste

5. Frequently Asked Questions (FAQ)

Q1: Why subtract the pattern repeat from roll height?
A: The repeat reduces usable roll height because each drop must be aligned with the previous one's pattern.

Q2: What if my wallpaper has no pattern repeat?
A: Enter 0 for the repeat value, making the formula simply \( (H/Roll\_H) \times (W/Roll\_W) \).

Q3: How do I convert feet to yards for input?
A: Divide feet measurements by 3 (1 yard = 3 feet).

Q4: Should I round up the result?
A: Yes, always round up to the nearest whole number when purchasing rolls.

Q5: Does this account for doors and windows?
A: No, for more accurate results subtract these areas from your wall width measurement.