From the size of the room (more on this below) and from the design. One roll is usually 10 meters. If the wallpaper is plain and the ceiling height is 2.5 meters, you can cut the roll into four strips. If the drawing has to be adjusted, there will be three stripes.

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No pattern alignment: the roll is simply cut into required quantity panels Usually this plain wallpaper, wallpaper with an abstract pattern or vertical stripes.

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The pattern will have to be combined horizontally so that adjacent stripes start with the same elements. And here everything will depend on the height of the repeat - the distance through which the pattern is repeated (indicated on the label). In the worst case, you will have to throw away almost the entire height of the repeat, so when calculating it must be added to the height of the ceiling.

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The pattern is placed diagonally, so each canvas moves. As a rule, half rapport. In this case, you need to add the repeat height and the offset value to the ceiling height: you will find both numbers on the label.

How to calculate the amount of wallpaper using tables

This is an ideal method if the room is square or square, and the wallpaper does not require adjustment. All you need is the area of ​​the room and the height of the ceiling.

Quantity calculation narrow wallpaper (width – 53 cm, length – 10 meters).

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Quantity calculation wide wallpaper (width - 106 cm, length - 10 meters).

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How to calculate the number of wallpapers mathematically

If the room has complex shape, there are bends and niches, it is better to count along the perimeter. To do this, you need to add up the lengths of all the walls. Window and doorways less than 60 cm wide are considered to be a flat wall; wider ones are excluded. The resulting value is rounded up.

Example: 2.75 m + 3 m + 0.4 m + 2.85 m + 4 m + 0.65 m = 13.65 m ≈ 14 m.

Then you need to determine the number of strips: divide the perimeter by the width of the roll. Let's return to our example: 14 m / 1.06 m = 13.2. Round up - 14 wide wallpaper sheets. For narrow wallpaper: 14 m / 0.53 m = 26.4. That is 27 stripes.

Now you need to determine how many strips can be obtained from one roll: the length of the roll must be divided by the length of the strip. And there can be three options:

1. If the wallpaper does not require adjustment, the length of the strip is equal to the height of the ceiling. 10 m / 2.75 = 3.6 ≈ 3.
2. If the wallpaper is directly joined, the length of the strip is equal to the sum of the ceiling height and the repeat height (0.6 m). 10 m / (2.75 + 0.6) = 2.9 ≈ 2.
3. If the wallpaper is jointed, the length of the strip is equal to the sum of the ceiling height, repeat height (0.6 m) and offset value (0.3 m). 10 m / (2.75 + 0.6 + 0.3) = 2.7 ≈ 2.

The last step: divide the number of strips we need by the number of strips in the roll. If the wallpaper is wide, 14 will need to be divided by 3 or 2. If it is narrow, divided by 3 or 2 will need to be 27 stripes.

How to calculate the number of wallpapers using services and applications

Most quick way, if you know the parameters of the room, and the simplest one, if you are not good with mathematics. There are many wallpaper calculators on the Internet, here are just a few good ones.

• Wallpaper calculator from calc.by. It counts both by area and by perimeter, allowing you to exclude door and window openings. You can also set the width and footage of the roll.
• Wallpaper calculator from calc.ru. Performs calculations along the perimeter. Helps determine how much wallpaper and glue is needed.
• Wallpaper calculator from remont-online.com. First, the configuration of the room is selected, then the width of the walls and wallpaper is set. You can also specify the price per roll to find out the total cost of the pasting.

If you are already in the store, use the application for calculations. Here are two free ones with good ratings. non-food products of good quality that are not subject to return or exchange, there are Decoration Materials. But we are talking only about goods sold by the meter.

The wallpaper remained unopened, not wrinkled or scratched.

No more than 14 days have passed since the date of purchase. When purchasing online - 7 days.

There is a receipt or other document confirming the fact of purchase. If the receipt has not been saved, you can request a cash register tape (stores keep it for a month) or attract witnesses.

In other words, if you don't like the wallpaper, you can take it back to the store. All rolls. In this case, the seller will offer you a similar product, and if there is none, you can write a request for a refund.

Returning one or two extra rolls later will be problematic. But large stores usually accommodate customers halfway. After all, they purchase wallpaper in large quantities, and plus or minus one roll does not particularly affect sales. Customer loyalty is more valuable.

Just in case, check the return policy before purchasing.

The question of how to calculate how much wallpaper you need for a room is not an easy one, because no one wants to overpay for leftovers or, conversely, buy several rolls. And if the desired color is not left in the store, then the problem is where to look for them now? In order not to complicate your life, before buying wall covering learn how to calculate required amount wallpaper

Advice! If you have not yet removed the old ones from the walls before purchasing new wallpaper, you can count how many old sheets are pasted on the wall. But when gluing a new coating, keep in mind that the width of the new ones must be equal to the width of the old ones, otherwise the advice will not work.

Preliminary room measurements

Measurement accuracy is the basis of any calculations. For all measurements and in order to calculate the amount of material per room correctly, you will need:

• construction tape or measuring tape;
• calculator;
• paper and pen for recording results.

First, measure the length and width of the room, as well as the height of the ceiling. You should not take into account the level of the walls, and the sizes of windows and doors should be measured separately - this data will be useful in calculations. If the design provides for a wide ceiling molding, box or dropped ceilings- their width should be subtracted.

Measure with extreme care:

• projections;
• niches;
• space above doors and windows.

Advice! If in the room uneven ceiling, it is recommended to measure the wall at the most high place.

Calculation of wallpaper around the perimeter of the room

One way to calculate the number of pieces of wallpaper is to calculate the perimeter of the walls of the space. In a similar way, you can calculate how much wallpaper is needed to finish the ceiling.

Attention! For those who have forgotten the formula for calculating the perimeter: you need to add the length of one wall to the length of the adjacent wall, and multiply the resulting result by two. To avoid mistakes, use a calculator.

Times when all wallpapers had standard width, passed. Modern manufacturers offer decorative coating the following width:

When calculating, take into account whether there is a pattern on the wallpaper or not. Wallpaper with a report (a design element that is repeated on the wallpaper) requires a margin for selection. If you choose one with a large pattern, when making calculations you will have to add up to 0.7 m for each sheet. Before starting calculations, measure how much the length of the report “takes up” in your case. Plain coatings without a pattern do not require any reserves.

Important! If the design of the room includes several types of canvases, first think over the gluing scheme, and only then calculate the quantity.

Let's start with the calculations. Necessary:

Attention! To avoid making downward mistakes when making calculations, numbers should be rounded to the nearest whole value, and upward.

Calculation by room area

The method described above has one drawback - the presence of windows and doors in the room is not taken into account, so you will still have excess materials. Alternative way- calculation by wall area. To do this you need:

1. Calculate the total area - multiply the length and height of the wall.
2. Calculate the area that will be covered. First you need to calculate the area of ​​the window and doorways(multiplying their height and width). Next, subtract the total area of ​​windows and doors from the total area of ​​the room (calculated in point 1).
3. Count the number of rolls. Standard wallpaper 0.53x10 m can be sealed 5 square meters.
4. The final calculation of the number of rolls is to divide the pasting area (the figure from point 2) by the area that can be covered with one roll (for example, as in point 3).

Important! If you have chosen non-standard, for example, meter-long wallpaper, it is easy to find out the size of the surface that can be covered with one roll. To do this, multiply the width and length of the roll or carefully study the label; perhaps it contains this information, which will save you from unnecessary manipulations with calculations.

How to check your calculations

There are ready-made tables in which the number of standard rolls for rooms with standard sizes. If you counted along the perimeter, check the resulting value:

• pay attention to the series. The numbers on all rolls must be the same, otherwise there may be differences in color and brightness;
• the material may be defective, so you should unwrap and check all rolls after purchase;
• even in wallpaper with a small pattern there can be a report that is invisible at first glance;
• You can reduce material consumption if you cut strips not from one roll, but from several at the same time;
• It is recommended to glue the walls above the door and window openings with leftovers and scraps, but the image on the sides must match;
• glue internal corners, you need to start with a new piece;
• glue external corner, lay the wallpaper overlapping or simply wrap the corner;
• sometimes it is necessary to level the angle thin strip, the length of which is a whole sheet, take this fact into account when calculating the wallpaper consumption.

More useful information on video:

Wallpaper is the most popular means of decorating walls in residential premises. With their help, you can make absolutely any design in a room without resorting to unnecessary financial costs. When choosing wallpaper, consumers face a problem the right choice number of rolls. How to calculate the number of wallpapers correctly?

What is needed for the calculation

Usually, the roll label indicates an approximate scheme for calculating the amount of wallpaper. To find out the value yourself, you need to calculate the following parameters in advance:

• Wall surface area.
• Roll width.
• Roll length.
• Ceiling height.

Length and width values wallpaper roll can be seen on the label upon purchase. Knowing the values ​​will help you correctly calculate the amount of wallpaper per room.

Main types of wallpaper depending on width

Some 20 years ago, all the wallpapers in the countries former USSR had standard parameters length and width: 50 cm by 10 m. modern world the market for repair materials implies a large number of various types of wallpaper. Let's consider the main ones:

• Standard rolls. They have a width of 50 to 55 cm. The most common type of wallpaper. Length parameters can vary from 8 to 12 m for paper or vinyl based wallpaper. If their base is fabric, then the length parameters will be 15 m. This type Wallpaper is optimal for pasting walls with a ceiling height of 300 cm.
• Roll 60 cm wide. This type of wallpaper was widespread in the 90s. 20th century. However, now they are practically not used. The length can be from 8 to 10 m.
• Roll 74 cm wide. European type of wallpaper. They have a standard length. It is 10 m.
• Meter rolls. Appeared about 10 years ago. However, they have already gained popularity. Roll widths range from 100-106 cm. Manufacturers produce meter-long wallpaper with different meanings length. The standard one is 10 m. Rolls of length 12 and 25 m are also produced.

Find out the area of ​​the room

Main stages of work:

1. We draw a floor plan.
2. We carry out our own measurements.
3. We make the necessary calculations.

We draw the floor plan ourselves

How to count the number of wallpapers for one room? Before you get started, you need to prepare the following tools:

• Paper.
• Ruler.
• Pencil or pen.

It is necessary to draw a plan of all rooms in the room. For this you will need a ruler and a pencil. Absolute precision and scale ratios are not required here. The main thing is to schematically depict the room required for the calculation.

After the walls are schematically depicted, the location of windows and doors in the room should be indicated on the plan. The scale and precision values ​​also do not have to be respected.

Self-measurements

How to calculate the number of wallpapers? To do this, you should find out the values ​​of the sides of 1 roll and the surface area of ​​the walls of the room. To calculate the last number yourself, you need to do the following:

1. To work you will need a tape measure. With its help you need to measure the length of the walls of the room. To do this, measurements are taken along each wall. The height of the measurements does not matter. It all depends on which place is most convenient to work. You can measure the length along the baseboard, in the middle of the wall or right under the ceiling.
2. In a similar way we find the value of the height of the walls.
3. To avoid errors in the calculation, it is recommended to measure all 4 walls of the room in a similar way. Then the values ​​will be most correct.
4. We measure the height and width of the doors and window openings using a tape measure.
5. We calculate the area of ​​each wall. To do this, multiply the length value by the resulting height value. The number found will show the area of ​​one wall of the room. From it you need to subtract the area of ​​the opening (window or door). To calculate its area, you also need to find the product of the sides.
6. Similarly, you should find the area of ​​​​each of the walls of the room. To find total square meters to be wallpapered, the resulting values ​​must be summed up.

Find out the required number of rolls

To calculate, you will need to know the perimeter of the room. To find it, you need to get the sum of the lengths of all the walls of the room.

The resulting perimeter must be divided by the width of one roll. It is indicated on the wallpaper label. The resulting value will show how many wallpaper sheets will be needed to cover the entire room, excluding window and door openings.

Next, you should calculate how many canvases one roll of wallpaper is enough for. To do this, the length of the roll should be divided by the height of the room. The resulting number will show how many whole strips you can get from one roll.

How to calculate the number of rolls of wallpaper to cover the entire room? To do this, the previously obtained value of the total number of wallpaper sheets should be divided by the established number of strips from one roll. The resulting value is rounded to a whole number. We have determined the total number of rolls needed for one room.

You should purchase wallpaper after full implementation all measurements. Following these rules will allow you to learn how to correctly calculate the amount of wallpaper for a room.

Has your decision to renovate finally been made? But you haven't decided yet what to decorate the walls with? The least labor-intensive and expensive option is, of course, to hang wallpaper.

The most serious problem in this work is to correctly calculate the amount of wallpaper per room, so that you don’t have to buy more if there is a shortage, because it’s not always possible to find exactly the same ones. The opposite option, when you bought too many rolls, is also unlikely to make anyone happy - it’s money thrown away; you simply won’t have anywhere to use the two or three remaining rolls.

In order to calculate everything correctly, it is necessary to measure the perimeter that the walls of the room form. For those who no longer remember from school, let us remind you: the perimeter of a rectangle is the sum of the lengths of all its sides. For example, the walls have a length of two 6 m and two 4 m.

2×6+2×4=12+8=20 m is the length of the perimeter of the room. Naturally, you will end up with a different number.

Then we measure the height of the walls. IN standard apartments it is usually 2.5 m. Since standard rolls are 10 m long, divide 10 by the height of the walls - 2.5 m.

10:2.5=4 pcs., that is, from one roll you get 4 stripes of wallpaper.

Of course, if the height of your walls is different, then the number of stripes may also be different. For example, with a wall height of 3 m, you will only have 3 stripes and will have 1 m left, which can be used above door or window openings.

20:0.53= 38.3 pcs. Rounding up, we get 39 strips of wallpaper that we need to cover the entire room.

Now we divide the number of all strips by the number of strips in 1 roll.

39:4=9.7 – rounding again, we get 10 rolls of finishing material.

Of course, there are also door and window openings in the room. If they do not cover the entire wall, then they can be ignored, since you always need some minimum supply of wallpaper just in case of an unforeseen event. Well, if the openings are too large, then their width can be subtracted from the perimeter and then calculated according to the proposed scheme. But do not forget that openings are usually not made along the entire height of the room, so to seal the area above or below the opening, you will need a few more meters of material.

The number of rolls of wallpaper of non-standard width is 0.68; 0.9; 1.06; 1.40 m is calculated in the same way, but instead of 0.53 m we use the corresponding width in the calculation.

By area

Another simple way to calculate the amount of wallpaper is to use the area of ​​the surface to be pasted in the calculation.

For example, let's take the same numbers as in the previous version: the width of the walls is 6 and 4 m, the height is 2.5 m.

2×(6+4)×2.5= 50 m2. This is the area that needs to be covered with wallpaper. At the very beginning, we multiplied by 2, because we have two such walls.

Now we find out the surface area of ​​one roll, to do this we multiply its width by its length:

0.53×10=5.3 m2. That is, one roll of wallpaper can cover 5 m2 of wall with a small remainder, which is usually not taken into account.

50:5=10. We got 10 rolls again.

For a more accurate calculation, you can determine the area of ​​the openings - door and window, and if they are much larger than 5 m2, then one can be subtracted from the calculated number of rolls, since it has an area of ​​5 m2.

Such calculations can be made if the pattern on the wallpaper is small or frequently repeated and does not need to be adjusted.

With an image

The most difficult thing is to calculate the required number of rolls of patterned wallpaper that has a strict geometric or large drawing. They are glued, strictly observing the integrity of the design. Then the number of rolls is calculated taking into account the repeat - the distance between the individual elements of the pattern or design. Rapport is usually indicated on the label included in the package. Wallpaper with a large rapport produces a lot of waste, so first calculate how much it will cost you and whether it is worth buying at all.

Perhaps it is not only the most traditional way, but also the most universal. Considering wide choose wallpaper in construction stores, each person will be able to choose wallpaper for their home or office that will best suit them in terms of cost and quality.

Often, when customers come to a wallpaper store, they are already quite savvy about the quality of wallpaper and the price per roll. They know which wallpaper and which manufacturers are best to buy and paste on the walls.

But the question arises about the number of rolls needed for wallpapering walls. In this article we will try to give an example of how to visually calculate how many rolls of wallpaper are needed to paste a room.

If you prefer simple wallpaper that does not have a pattern at all, or has a small pattern that does not require selection when pasting walls, then calculating the number of rolls for a specific room is quite simple.

It is necessary to take measurements of the room, determine the length and width of the room. After this, all that remains is to multiply the length by the width.

Below is the calculation diagram S area of ​​the room.

Calculation example:

Room length= 3.9 meters (or 3 meters 9 centimeters)

Room width=3.45 meters (or 3 meters 45 centimeters)

S area of ​​the room=3.9x3.45=13.45 meters, rounded up to the nearest whole number.

As a result we get S=14 sq.m(or 14 square meters)

After this, we determine in the tables below the number of rolls required for the room for wallpapering.

Example of calculation according to the table:

In the example above we got 14 sq.m, if we chose wallpaper width 53 centimeters, then we next look at table No. 1 in the left column room area with number 14 . Depending on the height of the room, select a column name in the table ceiling height(if our room height is 2.65 meters, then look in the column for ceiling height Ceiling height 2.6 - 3 meters).

As a result, with a room (floor) area equal to 14 sq.m., for roll width 53 centimeter, Ceiling height 2.6 - 3 meters, V table No. 1 we get - you need 10 rolls.

Accordingly, with a room (floor) area equal to 14 sq.m., for roll width 70 centimeters, Ceiling height 2.6 - 3 meters, V table No. 2 we get - 7 rolls of wallpaper

And with a room (floor) area equal to 14 sq.m., For meter wallpaper wallpaper width 106 centimeters, Ceiling height 2.6 - 3 meters, V table No. 3 we get 5 rolls of wallpaper.

That's all the arithmetic is.

Below are 3 tables depending on the width of the wallpaper (for 53, 70 and 106 centimeters):

Table No. 1 53 .

Ceiling height up to 2.5 meters		Ceiling height 2.6 - 3 meters
Room area	Number of rolls	Room area	Number of rolls

For wallpaper width 53 centimeters and 10 meters long

Table No. 2 designed for wallpaper of equal width 70

Ceiling height up to 2.5 meters		Ceiling height 2.6 - 3 meters
Room area	Number of rolls	Room area	Number of rolls

For wallpaper width 70 centimeters and 10 meters long

Table No. 3 designed for wallpaper of equal width 106 centimeters and 10 meters long.

Ceiling height up to 2.5 meters		Ceiling height 2.6 - 3 meters
Room area	Number of rolls	Room area	Number of rolls

For wallpaper width 106 centimeters and 10 meters long

Note: In tables Room areas are indicated by gender(and not the area of ​​the walls), calculations are made on the average standard room, which usually has one door and one window.

You also need to take into account that when calculating the number of rolls of wallpaper using tables, sometimes you need to use and take into account the selection of a pattern existing on the wallpaper itself. If the wallpaper needs to be adjusted, then for every 6 rolls of wallpaper you need to add one more roll.

If you don’t want to manually calculate how much wallpaper you need for a room, if you didn’t understand something when describing the calculations, or if for some reason you can’t calculate how much wallpaper you need yourself, then this will help you online calculator.

Calculator for calculating the amount of wallpaper per room - calculate online

We won't bore you with tedious mathematical calculations. You just need to measure the basic parameters, and the wallpaper calculator itself will approximately calculate the required amount of wallpaper for your room.

Fractional numbers must be entered with a dot, not with a comma! Those. 5.2 - wrong, 5.2 - correct ! The calculation is approximate. The result values ​​may differ slightly from the true value because... all rooms are different and have various characteristics: square, rectangular, with protrusions. Plus, the windows and doors in the room, as well as their location, will have some influence on the error. If you decide to hang wallpaper with a pattern adjustment (rapport), then for every 6 rolls you need to add another roll to the result.

An example of calculating wallpaper for a room using our calculator: room width - 3.21 meters, room length - 3.75 meters and room height (ceiling height) 3 meters. We decided to buy wallpaper length 10 meters, width 1.06 meters.

Thus, we substitute our numbers into the value fields and get the result - 4 roll. If our wallpaper requires adjusting the pattern, then you can safely add another roll, for a total of 5 rolls of the meter paper we like.

Those who want more accurate calculations and measurements can read the article above " how to calculate how much wallpaper you need" and calculate manually.