How many wallpaper you need for a room: calculation of rolls and a choice of type of wallpaper

One of the first things you must determine when wallpapering a room is the quantity of wallpaper rolls you will require. This step is essential to prevent buying too much wallpaper and wasting money, or running out midway through the project. Finding the correct amount may initially seem difficult, but with a few straightforward measurements and some elementary math, it becomes clear-cut.

In addition to quantity, selecting the appropriate wallpaper style for your room is crucial. Choosing from so many different textures, patterns, and materials can be difficult. Making the best decision for your house will be made easier if you are aware of the various wallpaper styles and how well they complement various room designs.

This guide will show you how to precisely determine how many rolls of wallpaper you’ll need and offer advice on which kind of wallpaper will work best to make your space look amazing.

We calculate the rolls of the wallpaper

We will need to apply our mathematical education to avoid becoming lost in the numbers and to first identify the primary parameters:

1. Perimeter selected for decoration of the room. To do this, you need to add the lengths of all walls and divide the resulting figure by 0.53 m or 1.06 m. The same should be done when using a non-standard width of finishing material. This will allow us to find out the number of strips.

Utilizing a typical narrow roll (0.53 m)

1. Roll width and length. The standard width is 53 cm and 106 cm, the rest are non-standard. In this case, the length in the first case can be 10.05, 12 or 15 m, in the second – up to 25 m. If your ceilings in the apartment are 2.4-2.5 m, then the narrow one will be enough for 4 strips.

To help you grasp, here’s an example of how to calculate the amount of wallpaper required in a room:

• the total length of the walls will be – 5 and 6 m;
• ceilings – 2.5 m high.

The canvases measure "meter" (1.06 m).

22 m is the room’s total perimeter, calculated as 5 * 2 + 6 * 2;

You will need to purchase 11 rolls for a room with sides measuring 5 and 6 meters and a ceiling height of 2.5 meters.

We will require two rolls in our situation because a roll that is 25 meters long will contain ten strips. In order to avoid having to purchase a new strip, the final one must be joined at the bottom.

Actually, there will be some approximation in this calculation. It is now easy to calculate the amount of wallpaper (12: 0.53: 4≈6) required for a room measuring 12 meters around the perimeter once you are aware of the fundamental measurements.

Calculation of materials for a three-meter-tall wall

General calculation formula

You can easily create a general formula for these actions based on the above information: P:L:3, with the pattern adjusted, or 4 (not adjusted), where P is the room’s perimeter and L is the wallpaper roll’s width.

A helpful hint is to always round up the result.

It’s time to discuss the areas above the doorway and under the window now that you don’t have to cover the entire strip of wallpaper in these spaces. Using the leftovers from pattern adjustment is one way. You can save a ton of money on repairs in this way.

A handy tip is to calculate the amount of wallpaper required for a 20-meter-square room with wall lengths of 5 and 4 meters by multiplying the following: (5 * 2 + 4 * 2): 1.06: roll with 10 ∈ 1.

Wall area computation

If you enjoy working with exact figures, try these:

• determine the number of rolls using the formula, excluding the space above the door and under the window;
• add the required amount for these areas to them.

The outcome in this instance will be as comprehensive as feasible.

Let’s calculate the amount of wallpaper required for a 16- and 17-meter room with pattern adjustment:

• 16:0.53:3=10 rolls.;
• 17:0.53:3=11 rolls.

Recommendations from professionals

Here are some guidelines for figuring out how much wallpaper a low-cost home craftsman should buy:

1. If the wall coverings imply a repeating pattern, check with the seller the size of its step and divide the height parameter by this figure.
2. Round off the resulting number and multiply it by the same size of the image step. The resulting figure will be the length of the strip that needs to be cut off from the canvas.
3. Calculate the difference that will go to waste by subtracting the height of the wall from the length of the wallpaper strip.
4. Divide the total length of the roll by the length of the strip that you found in the 2nd point, you will get the coefficient. Multiply the difference found in point 3 by it. Get the total waste amount and subtract it from the total length.

Now divide the area to be pasted’s value by point 4’s net waste number. The number of rolls will determine the final outcome.

How to choose the type of wallpaper

Apart from the quantity, picking a canvas made of the right material will also be crucial. It’s important to realize that not every material can be used in every situation, so something you could easily paste yourself in the kitchen is probably not a good idea for the kids’ room.

Pictograms and a wallpaper calculation table on them

Today’s manufacturers provide a vast array of these wall coverings at varying price points, such as paper, non-woven, vinyl, fabric, bamboo, and velor:

• when choosing wallpaper for wet rooms, for example, a toilet, bathroom, kitchen or hallway, it is better to give preference to washable coverings. In addition, they should be as resistant to mechanical influences as possible;
• to decorate walls in a bedroom, living room or children"s room, it is better to buy natural coverings (bamboo or paper);
• Velor and fabric options are well suited for a decorative effect. However, they are very unprofitable in operation.

Although figuring out how much wallpaper you’ll need for a room can be difficult at first, it can be made simple with some preparation. Measure the walls first to get the overall square footage. From there, using the wallpaper rolls’ dimensions, you can quickly determine how many rolls you’ll need.

Selecting the appropriate wallpaper style is also very important. Each type of backing—fabric, paper, or vinyl—has advantages of its own and requires different installation techniques. Make sure the wallpaper you choose fits the purpose of the room as well as your personal preferences.

You can save time and money by taking the time to precisely measure and select your wallpaper, guaranteeing that your room is exquisitely decorated with no unpleasant surprises.

It’s crucial to precisely calculate the number of rolls required for a room and select the appropriate wallpaper type in order to estimate how much wallpaper you’ll need. You can prevent buying too much or too little wallpaper by measuring your room and paying attention to the wallpaper pattern. This will ensure a flawless fit and seamless finish. You can measure, calculate, and choose the ideal wallpaper for your walls by following these easy steps.

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