Sanderson Wallpaper Calculator

Wallpaper Rolls Calculation:

\[ rolls = \lceil \frac{(perimeter \times height + pattern\_repeat)}{roll\_length} \rceil \]

Perimeter:

feet

Height:

feet

Pattern Repeat:

feet

Roll Length:

feet

Wallpaper Rolls Needed:

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1. What is the Sanderson Wallpaper Calculator?

The Sanderson Wallpaper Calculator helps you determine how many rolls of wallpaper you'll need for a room based on the room's dimensions and the wallpaper's specifications.

2. How Does the Calculator Work?

The calculator uses the following equation:

\[ rolls = \lceil \frac{(perimeter \times height + pattern\_repeat)}{roll\_length} \rceil \]

Where:

\( perimeter \) — Total length of all walls (feet)
\( height \) — Wall height (feet)
\( pattern\_repeat \) — Vertical pattern repeat length (feet)
\( roll\_length \) — Length of one wallpaper roll (feet)

Explanation: The calculation accounts for the total wall area plus additional length needed for pattern matching, divided by the length of each roll and rounded up.

3. Importance of Accurate Calculation

Details: Calculating the correct number of wallpaper rolls ensures you purchase enough material for your project while minimizing waste. It's especially important with patterned wallpapers where matching the design requires extra length.

4. Using the Calculator

Tips:

Measure the perimeter of your room by adding the lengths of all walls
Measure from floor to ceiling for height
Check wallpaper specifications for pattern repeat length
Standard roll length is typically 33 feet, but check your specific product

5. Frequently Asked Questions (FAQ)

Q1: How do I measure my room's perimeter?
A: Add together the length of all walls. For rectangular rooms, this is (length + width) × 2.

Q2: What if my walls have windows or doors?
A: The calculation already includes a safety margin through rounding up. For large openings, you might subtract their area from the total.

Q3: Why does pattern repeat affect the calculation?
A: Patterned wallpapers require extra length to match the design at each drop, which means more wastage and therefore more rolls needed.

Q4: Should I buy extra rolls?
A: It's recommended to purchase 10-15% more than calculated to account for mistakes and future repairs.

Q5: What's the standard roll length?
A: Most Sanderson wallpapers come in rolls of 33 feet (10.05m) in length and 21 inches (53cm) in width, but always check your specific product.