How to measure your wall for Custom Wallpaper ?

At Kaleon Wallpaper, we want your mural or wallpaper to fit perfectly and look amazing from the very first panel. Getting accurate measurements is the most important first step – and it’s easier than you think!

Whether you’re wallpapering a flat wall, working around doors or windows, or covering multiple walls, this guide will walk you through how to measure like a pro.

General Tip for All Walls

Always add 10 cm to both the width and height of your measurements. This allows for minor variations in wall shape or level and ensures your wallpaper covers the entire area – edge to edge, top to bottom.

Option 1: Standard Walls

If your wall is clean and simple – no obstacles, corners, or cut-outs – this is your method.

How to measure:

Measure the full width of the wall from edge to edge (in cm).
Measure the full height from the floor to the ceiling (in cm).
Add 10 cm to both width and height for safety.

Tip: Use a metal tape measure for more accurate results and double-check your numbers!

Option 2: Walls with Slopes, Doors, Windows or Obstacles

Walls aren’t always straightforward – and that’s totally fine. If your wall has a sloped ceiling, built-in shelving, windows or a door, you’ll still measure the full rectangle around it.

How to measure:

Ignore any doors, windows, or features – pretend they’re not there.
Measure the widest part of the wall and the tallest point.
Add your 10 cm safety margin to both dimensions.

Tip: This gives you full wallpaper coverage. Later, you (or your installer) can trim around doors, powerpoints or windows for a perfect fit.

Option 3: Multiple Walls or Corners

Want your wallpaper to wrap around a corner or cover more than one wall? Here’s how to tackle it.

How to measure:

Measure the width of each wall individually (in cm).
Measure the maximum height across all walls.
Add 10 cm to each width and to the max height.

Tip: You can provide us with each wall’s dimensions when you order, and we’ll guide you through the best layout for a seamless wraparound effect.

Extra Measuring Tips:

Always use centimetres for consistency.

If your wall is tiled, bricked, or textured, measure from the actual surface (not from mouldings or trims).

Don’t worry if your walls aren’t perfectly square – that’s exactly why the 10 cm buffer is important.

If you’re unsure, reach out! Our team is here to help guide you step-by-step.

Ready to Order?

Once you’ve measured your wall(s), head to your favourite design, enter your measurements on the product page, and we’ll do the rest.

Still have questions? Contact us and we’ll be happy to help ensure your wallpaper is a perfect fit.