How to count wallpapering. Calculation of wallpaper for a room

Good afternoon everyone! There are several ways to calculate wallpaper by the area of ​​\u200b\u200bthe room. In addition, the calculation of the quantity depends on the pattern on the wallpaper, the method of gluing - whether there is a need to customize them or whether they are glued in a row, without selection.

Wallpaper is a magnificent type of decoration, there are a great many of them - for every taste. It is desirable to calculate the wallpaper as accurately as possible so that there is not much waste left, and most importantly, that the purchased amount is enough for the room.

How to calculate wallpaper correctly

We set the size of the room:

• Width = 3 meters
• Length = 5.5 meters
• Height = 2.5 meters

To determine the area of ​​the sticker, you, the perimeter is the sum of all sides of the room, multiply by its height. In numbers it looks like this:

3+3+5.5+5.5= 17m x 2.5m = 42.5m2.

Now from the total area it is necessary to subtract the area of ​​​​openings - this is a door and a window or two. We measure the width and height of the window with a tape measure - they are all different for everyone, but in the example we use the size of the area - 1.5x1.5 = 2.25m2 .

If you also have a balcony door, then I suggest counting the entire balcony block together as a rectangle, since a battery is usually located under the window. Then the calculation will be: 1.7x 2.35 = 4m2, like mine.

Consider the door to the room. By area, it will be equal to 2.1x 0.8 \u003d 1.7 m2

Now let's calculate the total need for wallpaper:

42.5m2 (total area) - 2.25 (window) - 1.7 (door) = 38.6m2.

Or with a balcony 42.5 - 4 - 1.7 \u003d 36.8 m2.

Now you have to select the wallpaper to know its length and width and determine how many rolls you need. For example, you chose wallpaper 10 meters and a width of 0.53 meters, then the area of ​​the roll = 5.3 m2. You need to take 38.6: 5.3 = 7.3 rolls, that is, 8 pieces.

If the wallpaper is meter long, then the area of ​​the roll = 10.6 m2 and you will need 38.6: 10.6 = 3.64 or 4 pieces. If you plan to glue them, then check out the article - how to glue meter-long wallpaper correctly.

Suddenly, someone decided to stick wallpaper in two colors, then you can read about it in the article - sticking wallpaper in two colors. The total need for wallpaper will remain unchanged, just divide them into different colors.

My painter's workers calculate the number of wallpapers in their own way - they don't need the area, as the girls count the number of stripes on the old wallpaper on the walls. If the wallpaper has already been removed, then they measure the width of the wallpaper with a tape measure and apply the specified width around the entire perimeter of the room, calculating the number of stripes. Let's say it turned out 26 strips, which means you need 26: 4 \u003d 6.5 rolls. Round up to seven. And you know, they think just as well as I do with my arithmetic calculations.

Wallpaper calculation with pattern selection

• Wallpaper with a selection of a pattern can be calculated according to the same principle, determining the area of ​​\u200b\u200bthe walls. To choose a pattern, you need to shift the canvases by 15-30cm. So calculate that each roll will take up to 1.2 meters (4 strips x 0.3 m offset). That is, you will already get 3 whole canvases and a piece. Moreover, there is a pattern - the larger the pattern in size, the more you need to move the wallpaper for selection.
• Of course, it is possible, in order to save money, and we all strive for this, to put these pieces into action and paste them over the wall behind the wall, closet and other items. This is especially true if the wallpaper is expensive, and we are financially economical. There are different situations.
• But I want to tell you that it is not for nothing that they say that "need for inventions is cunning." It is possible to combine the bottom or top of one wall from these meter or one and a half meter pieces, and the second will be from wallpaper of a different tone, texture. Or from them to insert into the wallpaper of another room. Here you have waste-free production, and it will turn out in an original way by design.

Now they offer many tables and “calculators” for calculating, but I am an “unbelieving Thomas” and I count everything myself, measure and calculate exactly according to the above method, which I shared with you.

Despite the fact that the range of materials for the repair and decoration of houses and apartments is replenished almost every year with one or another novelty, wallpaper does not lose its “leadership position” and still remains, probably, the most popular way to decorate walls in residential premises. Moreover, the widest variety of modern wallpapers, made using the most advanced technologies, allows you to complete the decoration in any interior style, authentically imitate wall cladding with many natural materials. And if we add here the relatively low cost and the possibility of independent finishing work, then the popularity of wallpaper gets a completely logical explanation.

Before the owners of housing, who have decided in favor of such a finish, the question will surely arise - how to calculate how much wallpaper is needed per room? We will try to help them with this - below is a convenient online calculator.

For those readers who have already been pasting wallpapers and, therefore, “savvy” theoretically, there should not be any problems using the program. Beginners may have unclear questions - some explanations on the use of the calculator and on the basic principles of calculation are given below.

How to find out how much wallpaper you need per room? The amount, of course, depends on the size of your room. To determine the required number of trellises, we need to calculate the perimeter or area.

What is needed for this?

Firstly, this is a tape measure for measuring the room, secondly, a notebook or notepad to record the measurement results, and finally, a calculator.

Calculation of wallpaper by room area and perimeter. Simple and clear table.

First you need to measure the length and height of the room where you are going to glue the wallpaper. It is also worth measuring the door and window openings. This will help improve the calculation.

First you need to calculate the perimeter of the room:

P = (L of one wall + L of adjacent wall) * 2
P is the perimeter;
L is the length.

Estimated web length, how to calculate?

To accurately know the length of the wallpaper, you must use the formula:

Estimated strip height = room height + ornament pitch (rapport) + margin for upper and lower allowances (5 cm)

Work begins by measuring the width of the wallpaper strips you have chosen. After that, count how many strips you need to paste the room:

N stripes per room = P / wallpaper stripe width

Counting from one roll.

Find out the length of the roll, which is indicated on the label. And then calculate according to the formula:

N strips from 1 roll = L roll / calculated strip height

N is the quantity.

Calculation of wallpaper rolls per room.

After all the work done, we will find out how many rolls are needed for pasting the room:

N rolls = N strips per room / N strips from 1 roll

Calculation of wallpaper by the area of ​​the room.

Since, the calculation along the perimeter may not always be relevant, because the number of doors and windows is not included in the calculation, because of this, the amount is calculated by area.

We measure the area of ​​\u200b\u200bthe walls using the following formula:

SO = L wall * H wall
S is the area;
SO - total area;
H is the height.

You also need to calculate the area of ​​\u200b\u200bthe walls on which you will glue the wallpaper. But before that, you need to calculate the sum of door and window openings. And then use this formula:

S wallpapering \u003d SO - S windows and doors

If the roll fits the standard 53 cm wide and 10 m long, it is designed for approximately 5 sq.m. rooms.

To calculate you need:

N rolls = S rooms / S that can be glued with 1 roll

Is there a pattern on your wallpaper?

If there is a drawing on your wallpaper, first of all you need to find out its report, and then calculate the final ceiling height for it and carry out the calculation along with it.

Using tables

In order to use the table, you need to know the perimeter and area of ​​​​the room. It depends on which table you need to use.

Calculation by area, table:

To use this kind of table, you must know the height and square of the room. And then you can easily find out the required number of rolls.

Table #1 53

Table number 2 designed for wallpaper equal to the width 70 centimeters and 10 meters long.

Table #3 designed for wallpaper equal to the width 106 centimeters and 10 meters long.

Perimeter calculation, table:

To use the table below, you need to calculate the width of the stripes and the length of the wallpaper you have chosen. After that, you need to measure the height of the ceiling and look at the table, how many rolls you will need.

Roll size (strip width / roll length = pasting area): 0.53 m / 10.05 m = 5.33 sq.m

Roll size: 0.53 m / 15 m = 7.95 sq.m

Roll size 1.06 m / 10.05 m = 10.65 sq.m

Is your decision to renovate finally made? But you haven't decided how to decorate the walls yet? The least time-consuming and costly option is, of course, to paste wallpaper.

The most serious problem in this work is to make the correct calculation of the number of wallpapers per room, so that you do not have to buy more if there is a shortage, because it is not always possible to find exactly the same ones. The reverse option, when too many rolls are bought, is also unlikely to please anyone - this is money thrown to the wind, you simply have nowhere to use the remaining two or three 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, we recall: the perimeter of a rectangle is the sum of the lengths of all its sides. For example, the walls have a length - two of 6 m and two of 4 m.

2×6+2×4=12+8=20 m is the length of the perimeter of the room. Naturally, you will get 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, we divide 10 by the height of the walls - 2.5 m.

10:2.5 = 4 pieces, that is, 4 strips of wallpaper are obtained from one roll.

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 get only 3 strips and will have 1 m left, which can be used over door or window openings.

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

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

39: 4 \u003d 9.7 - rounding again, we get 10 rolls of finishing material.

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

The number of wallpaper rolls of non-standard width - 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 glued 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 m 2. 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, for this we multiply its width by its length:

0.53×10=5.3 m2. That is, one roll of wallpaper can be pasted over 5 m 2 of the wall with a small remainder, which is usually not taken into account.

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

For a more accurate calculation, you can determine the area of ​​\u200b\u200bopenings - door and window, and if they are much larger than 5 m 2, then one can be subtracted from the calculated number of rolls, since it has an area of ​​5 m 2.

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

With an image

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

The readiness to make repairs in the room and refresh the appearance of the walls begins with the selection of materials for decoration. Most often update the walls of residential premises. This is a material that people of different incomes are happy to use in repairs, and each of them is satisfied with the choice.

Difficulties are possible not in determining the texture, quality and, but in calculating the material necessary for gluing. Therefore, each owner needs to know and be able to do it right, since the lack of wallpaper threatens to collapse, and its surplus is wasted savings.

There is no difficulty in calculations, so we arm ourselves with a notebook, a pen and remember the school geometry curriculum for grade 6, perhaps use an online calculator.

The formula for finding the area of ​​a wall is: S walls = P rooms x H rooms, where

• S- the area of ​​the rectangular surface of the wall;
• P- perimeter;
• H- height.

The measurement of the room must be approached with all responsibility, because the amount of money spent and the quality of the repair depend on them. Let's calculate:

1. First, we perform measurements (translate the centimeters obtained during the measurement into meters). For example, if the length of the room is 560 centimeters, then we consider 5.6 meters.

   • Length - 5.6 meters.
   • Width - 3.2 meters.

1. 1. Calculate the perimeter - it is equal to the sum of all sides.

      P = (a + b) x 2, where a and b are the sides.

      We find: (5.6 + 3.2) x2 = 17.9 meters. Perimeter P = 17.9 m.

1. We determine the height. From the highest point of the wall, plumb down to the lowest point of the wall. It turns out 2.5 meters. H = 2.5 m.
2. According to the formula indicated earlier, we calculate the area of ​​\u200b\u200bthe walls: S walls \u003d P rooms x H rooms S walls \u003d 17.9 x 2.5 \u003d 44.8 m 2 The area of ​​​​all walls for pasting is 44.8 m 2.
3. From the resulting number, it is necessary to subtract window, balcony blocks (if any) and doorways, since there is no need to glue wallpaper there.

We have one window in the room, the area of ​​\u200b\u200bwhich is calculated according to the same scheme. It is equal to 1.8 m 2 (1.25m x 1.45m). Door surface - 1.36 m 2 (0.70 m x 1.95 m). The total area of ​​surfaces not involved in gluing is 3.16 m 2. The net area is calculated as follows: 44.8 - 3.16 \u003d 41.6 m 2.

Attention

If the room has a non-standard size, a shape other than rectangular, the calculations should be made separately for each wall, and then add up the results.

How to determine the number of rolls needed?

The surface area for wallpapering has been calculated, now you need to determine the number of rolls. To do this, you must carefully study the labeling of the material. We will be interested in the dimensions of the roll and the location of the pattern.

The pattern on the wallpaper can be positioned in such a way that it does not affect the method of gluing, then no adjustment is required. But most often, a pattern offset is necessary, and this factor must be taken into account when buying.

No offset

So let's consider how to calculate the number of wallpaper rolls without offset, knowing the area of ​​\u200b\u200bthe room. Recall the lessons of mathematics. We study the marking: the width of the canvas is 53 centimeters = 0.53 m, the length is 10 m. The area of ​​\u200b\u200bone roll is 0.53 x 10 \u003d 5.3 m 2.

For our room, the calculation of the quantity will look like this:

Number of rolls = net S of walls: S of one roll,

or 41.6 m 2: 5.3 m 2 \u003d 7.8 or 8 rolls (since rounding is done up). It is better to buy one roll in reserve, in case the canvas deteriorates.

Offset

When performing repair work on gluing, it is not always necessary to deal with a simple geometric pattern that does not require displacement and adjustment. Most often, knowledge is required on the calculation of material with a complex pattern. The material for sticking with a pattern offset is calculated according to the same principle.

In the marking of the fabric, the manufacturer indicates the distance in centimeters required to fit the material (for example, 20 cm). The larger the picture, the higher the score. This means that in order to select a pattern, it is necessary to shift the canvas of each strip by 20 cm. Up to 0.6 m of material will go from each roll (since 4 strips at a room height of 2.5 m cannot be measured for wallpaper with an offset).

Thus, from one package we get 3 cuts of 2.5 m + 0.6 m. The remainder of a 10-meter piece will be at least 1.9 m.

Number of rolls with pattern matching = (number of rolls without matching x number of cuts without matching in one roll): number of cuts with matching pattern from one roll.

If for our room, the area of ​​\u200b\u200bglued surface is 41.6 m 2, it is necessary to shift from each roll by 0.6 m, then instead of 8 needed to combine a complex pattern, 11 pieces will be required (8x4: 3 \u003d 10.6 or 11). Thus, if the wallpaper requires adjustment (in our case, 20 cm), then the amount that will be needed to repair the room is 11 pieces.

To calculate the wallpaper by area, you can use the online calculator.

We talked about how to customize the finishing material according to the pattern in, and information is collected on how to properly and economically glue wallpaper with a pattern

Calculation along the perimeter of the room and the number of stripes

There is one more method of calculating the amount of finishing coating: along the perimeter of the room and the number of stripes. The following data is required for calculations:

• the perimeter of the room;
• his high;
• wallpaper sizes.

Let's determine the number of cuts in 1 roll = length of one roll: length of one web (in our case it is 10 m: 2.5 m = 4 whole strips).

To determine the number of cuts for a room, we use known indicators- the width of the wallpaper and the perimeter of the room.

Number of cuts \u003d P room: roll width (we enter already known data for the sample - 17.9 m: 0.53 m \u003d 33).

Calculate the number of wallpaper rolls per room:

Number of rolls = number of cuts per room: number of cuts, i.e. 33:4 = 8.25.

There are windows and doors in each pasted room, so you can buy 8 pieces.

Calculation table

If all of the above calculation methods are complex, a table will help in calculating the finishing material. To use it, you need the key indicators discussed above: area (length times width) and height. The process of calculating wallpaper is time-consuming: you need to take into account many nuances, which in the end can be decisive.

No matter how carefully the calculation of the finishing material is made, the masters advise to purchase an additional one. This will be relevant in the case when the cut gets dirty or wrinkled during repair work, and it will be impossible to fix it. In an apartment where children live, an extra roll can come in handy for unplanned repairs.

Useful video

The article is accompanied by a visual video with calculations of the number of rolls per room:

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