DIY Home Improvement Calculators

Rolls of colorful wallpaper

Understanding Your Wallpaper Project

Our Wallpaper Calculator helps you determine the number of wallpaper rolls needed for your project. Accurate measurements and careful planning are key to achieving a beautiful, seamless finish without running short on material.

Wallpapering Tips for a Flawless Finish:

Wallpaper Calculator FAQs:

How much extra wallpaper should I buy?
It's generally recommended to add 10-15% extra wallpaper for waste, pattern matching, and potential future repairs. Our calculator includes a typical waste factor to ensure you have enough.
What is pattern repeat?
Pattern repeat is the vertical distance between one point in a pattern and the identical point directly below it. Wallpapers with larger pattern repeats require more material for matching.
Can I wallpaper over existing wallpaper?
While technically possible with some types of wallpaper, it's generally not recommended. Removing old wallpaper and properly preparing the wall surface provides the best and most durable results.
How do I clean my wallpaper?
The cleaning method depends on the type of wallpaper. Most non-woven or vinyl wallpapers are washable and can be gently wiped with a damp cloth. Always check the manufacturer's instructions.