Wallpaper Yardage Calculator With Repeat Patterns

Wallpaper Yardage Formula:

\[ \text{Yardage} = \lceil(\text{Wall Height} / \text{Repeat}) \rceil \times \text{Repeat} \times \text{Wall Width} / \text{Width Per Roll} \times \text{Length Per Roll} \]

Wall Height:

Pattern Repeat:

Wall Width:

Width Per Roll:

Length Per Roll:

yards

Total Yardage Needed:

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1. What is the Wallpaper Yardage Calculator?

The Wallpaper Yardage Calculator helps determine how much wallpaper is needed for a project, accounting for pattern repeats. It's essential for ensuring you purchase enough material while minimizing waste.

2. How Does the Calculator Work?

The calculator uses the following formula:

\[ \text{Yardage} = \lceil(\text{Wall Height} / \text{Repeat}) \rceil \times \text{Repeat} \times \text{Wall Width} / \text{Width Per Roll} \times \text{Length Per Roll} \]

Where:

\( \text{Wall Height} \) — Height of the wall in feet
\( \text{Repeat} \) — Pattern repeat length in feet
\( \text{Wall Width} \) — Total width of all walls to be covered in feet
\( \text{Width Per Roll} \) — Width of a single wallpaper roll in feet
\( \text{Length Per Roll} \) — Length of a single wallpaper roll in yards

Explanation: The formula accounts for the extra wallpaper needed to match patterns vertically by rounding up to the nearest full pattern repeat.

3. Importance of Accurate Yardage Calculation

Details: Proper calculation prevents purchasing insufficient wallpaper (which may lead to dye lot mismatches) or excessive amounts (which wastes money). Pattern repeats significantly affect total yardage needed.

4. Using the Calculator

Tips: Measure wall dimensions carefully. Check wallpaper specifications for exact repeat size and roll dimensions. Always add 10-15% extra for pattern matching and errors.

5. Frequently Asked Questions (FAQ)

Q1: Why does pattern repeat affect yardage?
A: Each drop must start at the same point in the pattern, which may require cutting off more wallpaper at the top to match the pattern.

Q2: Should I include windows and doors in wall width?
A: Yes, calculate total wall width before subtracting openings. This accounts for pattern matching around obstacles.

Q3: How do I measure pattern repeat?
A: Measure vertically from one point in the pattern to where it repeats exactly. This is typically listed on wallpaper labels.

Q4: What if my wallpaper has no repeat?
A: Use a simpler calculator that doesn't account for repeats, as less material will be wasted.

Q5: How much extra should I buy?
A: For complex patterns, add 15-20% extra. For simple patterns, 10% is usually sufficient.