Measuring your wall correctly is the first step to a perfect wallpaper or mural installation. This quick guide will show you exactly what to do so you can order the right amount and avoid running short.

What You Need Before You Start

  • Measuring tape (inches or centimeters)
  • Step stool or ladder for tall walls
  • Pen and paper or your phone notes
  • Someone to help for very wide or tall walls, if possible
Get everything ready before you start measuring.

Step 1, Decide Which Area You Want to Cover

Decide if you are covering:

  • One feature wall
  • Several walls in the same room
  • The full room including small returns or alcoves

Measure each wall separately, then you can add the measurements together or use our calculator on the product page.

Choose whether you will cover one wall or multiple walls.

Step 2, How to Measure a Standard Wall

Measure the width

  1. Place the end of the tape measure at one corner of the wall.
  2. Stretch the tape across to the opposite corner in a straight line.
  3. Write down the full width of the wall.
Measure the full width of the wall from corner to corner.

Measure the height

  1. Measure from the top of the baseboard or floor to the bottom of the ceiling or crown molding.
  2. Measure in at least two places in case the ceiling is slightly uneven.
  3. Use the largest height you find and write it down.
Measure wall height in more than one spot and use the largest number.

Write down your final wall size as width by height, for example 144 inches by 108 inches or 366 centimeters by 274 centimeters. Use the real numbers only, do not add extra yet. Our calculator on the product page can add trimming allowance and pattern matching for you.

Step 3, Walls with Doors, Windows, or Radiators

If your wall has doors, windows, or radiators, the simplest and safest option is to measure the wall as if it were full. This gives some extra material for pattern match and trimming.

If you are confident with measurements and want to be more precise, you can:

  1. Measure the full wall width and height.
  2. Measure the width and height of large openings such as doors or big windows.
  3. Note those sizes separately so your installer can calculate how much extra is available.
For walls with windows and doors, it is usually best to measure the full wall.

Step 4, Measuring More Than One Wall

If you plan to wallpaper more than one wall:

  1. Measure each wall individually, width and height.
  2. Write each wall on a separate line, for example:
    Wall 1, 142 in x 96 in
    Wall 2, 120 in x 96 in
  3. Use our calculator on the product page for each wall or ask your installer which walls can be grouped together.
Keep a clear list of measurements for each wall you want to cover.

How to Use Your Measurements for Wallpaper Rolls

Every wallpaper roll on Decor2Go includes the roll size and approximate coverage on the product page. To understand how many rolls you need, you can:

  1. Enter your wall measurements into the quantity calculator on the product page.
  2. Or calculate manually, for example:
    • Find your total wall area (width × height).
    • Check the coverage per roll on the product page.
    • Divide total wall area by coverage per roll and round up to the next whole roll.
Check the coverage per roll on the product page or use the built in calculator.

We always recommend rounding up, a little extra is better than not having enough to match the pattern.

How to Use Your Measurements for Wallpaper Murals

Wallpaper murals are usually ordered based on the size of the wall you want to cover. In most cases you will simply:

  1. Measure the full width and height of the wall area you want to cover.
  2. Enter those numbers into the mural size or calculator box on the product page.
  3. Follow any mural specific notes on that page, for example minimum bleed or print area.

Our calculator can add extra for trimming and pattern match, so use your real wall size and let the system handle the rest.

For murals, measure the full area you want to cover and enter those exact numbers.

Tips for Accurate Measurements

  • Measure twice to confirm your numbers match.
  • Do not rely on old floor plans or estimates, always measure the real wall.
  • Note your units clearly, inches or centimeters, and keep them consistent.
  • If you are unsure, take photos of your wall and your notes and share them with your installer.
Double check your measurements for the best result.

Need Help

If you are not sure how to measure your wall for a specific Decor2Go product, contact our team and attach photos of your space. We are happy to guide you so you can order with confidence.