Age Calculator
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Go to calculatorWallpaper Calculator
Redecorating your home with wallpaper can transform any room, but knowing how much wallpaper to buy can be tricky. Our wallpaper calculator takes the guesswork out of your project, helping you estimate the right amount of materials needed.
Table of contents
Number of Rolls Required:
Note: Always round up to the next full roll and consider ordering extra for pattern matching and future repairs.
How to Use the Wallpaper Calculator
- Measure your room’s width and height in feet.
- Enter these measurements into the calculator.
- Input the number of windows and doors.
- Specify the wallpaper roll dimensions (typically found on the product packaging).
- Click “Calculate” to get your estimate.
The calculator will provide you with the number of rolls needed, considering standard wastage and pattern matching.
Understanding Wallpaper Calculations
Calculating wallpaper needs involves more than just measuring wall space. Here’s what goes into a precise estimate:
- Total Wall Area: Multiply room height by the perimeter.
- Deductions: Subtract areas for windows and doors.
- Wastage: Add 10-15% for pattern matching and mistakes.
- Roll Coverage: Divide the total area by the coverage of one roll.
Tips for Accurate Measurements
- Use a metal tape measure for precision.
- Measure to the nearest inch or centimeter.
- Don’t forget to account for alcoves or bay windows.
- For patterned wallpaper, order extra to ensure pattern matching.
Wallpaper Types and Considerations
Different wallpaper types may affect your calculations:
- Plain Wallpaper: Easier to estimate, less wastage.
- Patterned Wallpaper: Requires extra for pattern matching.
- Textured Wallpaper: May need additional material for complex surfaces.
Cost Estimation
Once you know how many rolls you need, you can estimate your project cost:
- Multiply the number of rolls by the price per roll.
- Add the cost of adhesive and tools.
- Consider professional installation costs if not DIYing.
DIY vs. Professional Installation
Deciding whether to hang wallpaper yourself or hire a professional depends on:
- Your experience level
- The complexity of the pattern
- The room’s shape and size
- Your available time
Professional installation typically costs $3-$10 per square foot but can ensure a flawless finish.
Ready to start your wallpapering project? Use our calculator now to get an accurate estimate of the materials you’ll need. With the right preparation, your room transformation is just a few clicks away!
Frequently Asked Questions
How do I calculate wallpaper for a room with sloped ceilings?
Measure the height at the tallest and shortest points. Use the average height in your calculations, and add extra for the angled cuts.
Should I buy extra wallpaper?
Yes, it's recommended to purchase 10-15% more than calculated to account for mistakes and future repairs.
How do I calculate wallpaper for a feature wall?
Measure only the wall you plan to cover. Remember to add extra for pattern matching if using a patterned wallpaper.
Can I return unused wallpaper?
Most stores allow returns of unopened rolls, but check their policy before purchasing.
How long does wallpaper typically last?
Quality wallpaper can last 10-15 years with proper care and installation.
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