Roll requirements

Determining the number of rolls needed – How to calculate the correct amount of wallpaper

Accurately calculating the amount of wallpaper needed is crucial for smooth application and a perfect result. The number of rolls required depends on several factors:

  • Room perimeter

  • Room height

  • Roll length and roll width

  • Wallpaper pattern repeat

  • Cutting and safety reserve

You can find the exact dimensions of your desired wallpaper in the respective product details view.

Wallpaper needs assessment

To calculate the required number of wallpaper rolls , proceed as follows:

1️⃣ Determine the room perimeter

Add up the lengths of all the walls:

Length of wall 1 + wall 2 + wall 3 + wall 4 = room perimeter

2️⃣ Determine the room height

Measure the room height and add approximately 5 cm to ensure a clean cut.

3️⃣ Consider the role format

The most common roll format is the Euro roll:

10.05 m length × 0.53 m width

For large rolls or special formats, the dimensions must be taken into account accordingly.

4️⃣ Plan for a safety reserve

Windows and doors should not be completely deducted from the calculation. It is advisable to include at least one spare roll for future repairs or renovations.

Needs assessment for borders

Calculating wallpaper borders is much simpler:

  1. Determine room perimeter

  2. Divide the room perimeter by the border length

Standard borders are usually 5 meters long (sometimes 10 meters).

Formula:

Room perimeter ÷ border length = number of borders required

Example calculation – Wallpaper requirements (0.53 m × 10.05 m)
Room perimeter (m) Room height (m) Number of roles
10 2.25 5
15 2.25 7
20 2.25 9
25 2.25 12
10 2.50 6
15 2.50 8
20 2.50 10
25 2.50 12
10 2.75 6
15 2.75 8
20 2.75 11
25 2.75 14
10 3.00 6
15 3.00 9
20 3.00 12
25 3.00 15
10 3.25 7
15 3.25 10
20 3.25 13
25 3.25 16

Important note regarding patterned wallpapers

Wallpaper with a repeating pattern (pattern offset) results in increased waste. In this case, an extra roll should be factored in.

Professional advice for retailers and processors

As an experienced wallpaper distributor , Matex Tapeten Vertriebs GmbH is supported.

We are happy to assist you with any questions regarding the correct quantity calculation.