Wallpaper Yardage Calculator With Repeat

Wallpaper Yardage Formula:

\[ \text{Yardage} = \frac{\text{Wall Height} \times \text{Wall Width}}{\text{Roll Width}} \times (1 + \frac{\text{Pattern Repeat}}{\text{Wall Height}}) \]

Wall Height:

feet

Wall Width:

feet

Roll Width:

inches

Pattern Repeat:

inches

Estimated Yardage:

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1. What is Wallpaper Yardage Calculation?

Wallpaper yardage calculation determines how much wallpaper is needed to cover a wall, accounting for pattern repeats that require additional material for proper alignment. Accurate calculation helps avoid waste and ensures pattern continuity.

2. How Does the Calculator Work?

The calculator uses the wallpaper yardage formula:

\[ \text{Yardage} = \frac{\text{Wall Height} \times \text{Wall Width}}{\text{Roll Width}} \times (1 + \frac{\text{Pattern Repeat}}{\text{Wall Height}}) \]

Where:

Wall Height — Height of the wall in feet
Wall Width — Width of the wall in feet
Roll Width — Width of wallpaper roll in inches
Pattern Repeat — Pattern repeat distance in inches

Explanation: The formula calculates base coverage area then adds extra material needed for pattern matching based on the repeat size relative to wall height.

3. Importance of Pattern Repeat Adjustment

Details: Pattern repeat adjustment is crucial for ensuring patterns align correctly between strips. Larger repeats require more wallpaper to properly match patterns, reducing visible seams and creating a professional finish.

4. Using the Calculator

Tips: Measure wall dimensions accurately in feet. Check wallpaper roll specifications for exact width. Measure pattern repeat from identical points in the pattern. Always add 10-15% extra for mistakes and future repairs.

5. Frequently Asked Questions (FAQ)

Q1: Why account for pattern repeat?
A: Pattern repeat requires additional wallpaper to align patterns between strips. Without this adjustment, patterns won't match properly, creating visible seams.

Q2: How do I measure pattern repeat?
A: Measure vertically from any point in the pattern to where the identical point appears again in the next pattern cycle.

Q3: Should I order extra wallpaper?
A: Yes, always order 10-15% more than calculated to account for errors, pattern matching challenges, and future repairs.

Q4: What if my walls have windows/doors?
A: For complex walls, calculate total wall area then subtract window/door areas. The calculator provides base requirements that should be adjusted for architectural features.

Q5: How does roll width affect calculation?
A: Wider rolls cover more area per strip, potentially requiring fewer strips but more careful pattern matching at seams.