Decorating your room with wallpaper is an exciting way to add personality and charm to your space. However, calculating the number of wallpaper rolls needed and the associated cost can be a bit tricky. That’s where our "Wallpaper Calculator – Estimate Rolls and Cost" comes in handy. This tool helps you estimate the number of rolls required and the total cost based on your room dimensions.

How to Use the Wallpaper Calculator

1. Measure Your Room: Measure the width, length, and height of your room in feet. Enter these dimensions into the calculator.
2. Roll Coverage: Our calculator assumes each roll of wallpaper covers 36 square feet.
3. Calculate: The calculator will use these dimensions to compute the total wall area, the number of rolls needed, and the estimated cost.

Calculate wallpaper for walls

To manually calculate the total wall area and number of rolls needed, you can use the following formula:

Total Wall Area:

$\text{Total Wall Area}=2\times (\text{Length}\times \text{Height})+2\times (\text{Width}\times \text{Height})$

Number of Rolls:

$\text{Number of Rolls}=\frac{\text{Total Wall Area}}{\text{Roll Coverage}}$

Here, each roll covers 36 square feet.

Total Cost:

Total Cost = Number of Rolls × Cost per Roll

Example Calculation

For example, if your room has the following dimensions:

• Length: 15 feet
• Width: 10 feet
• Height: 8 feet
• Cost per roll: $20

Using the formulas:

Total Wall Area:

$\text{Total Wall Area}=2\times (\text{15}\times \text{8})+2\times (\text{10}\times \text{8})$

$\text{Total Wall Area }=\text{ 400 sq ft}$

Number of Rolls:

$\text{Number of Rolls}=\frac{\text{400}}{\text{36}}$

$\text{Number of Rolls }=\text{ 11.11 rolls}$

Since you can't purchase a fraction of a roll, you would need to round up to 12 rolls.

Total Cost:

Total Cost = 12 × 20 = $240

So, you would need approximately 12 rolls of wallpaper, costing you $240 in total.

FAQs

Q: How do I measure my room for wallpaper?

A: To measure your room, you'll need to measure the width, length, and height of each wall. For accurate results, measure in feet and round to the nearest inch. If you have irregular walls or features such as doors and windows, subtract their area from the total wall area.

Q: How many square feet does a roll of wallpaper cover?

A: Our calculator assumes that each roll of wallpaper covers 36 square feet. This is a standard measurement, but actual coverage may vary based on the pattern and match of the wallpaper you choose. Always check the roll label for exact coverage details.

Q: Do I need to buy extra rolls for pattern matching?

A: Yes, if your wallpaper has a pattern that needs to be matched, you may need extra rolls. Pattern matching can cause more waste due to the need to align the design. It’s a good idea to buy at least one extra roll to ensure you have enough.

Q: How do I calculate the total cost of the wallpaper?

A: To calculate the total cost, multiply the number of rolls needed by the cost per roll. For example, if you need 10 rolls and each roll costs $20, the total cost will be $200.

Q: How do I ensure a smooth wallpaper installation?

A: To ensure a smooth installation, prepare your walls by cleaning them and filling any holes or cracks. Follow the manufacturer's instructions for applying the wallpaper paste and hanging the wallpaper. Taking your time and working carefully will help achieve the best results.

$$