How to calculate how much wallpaper you need. How many square meters in a roll of wallpaper: consider the required number

Is your decision to repair finally made? But you still have not decided what to finish the walls? The least time-consuming and costly option is, of course, to stick wallpaper.

The most serious problem in this work is to make the correct calculation of the number of wallpapers per room, so that you don’t have to buy them after a shortage, because you can’t always find exactly the same. The opposite option, when too many rolls are bought, is also unlikely to please anyone - this is money thrown away, you simply have nowhere 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, recall: the perimeter of a rectangle is the sum of the lengths of all its sides. For example, the walls have a length of two by 6 m and two by 4 m.

2 × 6 + 2 × 4 \u003d 12 + 8 \u003d 20 m - this is the length of the perimeter of the room. Naturally, you get a different number.

Then 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 \u003d 4 pcs., 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 only get 3 stripes and 1 m will remain, which can be used above door or window openings.

20: 0.53 \u003d 38.3 pcs. Rounding, we get 39 strips of wallpaper, we need to paste over the entire room.

Now the number of all strips is divided 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 on the entire wall, then they can be ignored, since some minimum supply of wallpaper is always needed for any unforeseen event. 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 over the entire height of the room, therefore, to glue the area above or below the opening, you will need a few more meters of material.

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

By area

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

For example, 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 \u003d 50 m 2. This is the area that needs to be pasted over with wallpaper. At the very beginning, we multiplied by 2, because we have two such walls.

Now we find out the surface area of \u200b\u200bone roll, for this we multiply its width by the length:

0.53 × 10 \u003d 5.3 m 2. That is, with one roll of wallpaper you can glue 5 m 2 of wall with a small residue, which is usually not taken into account.

50: 5 \u003d 10. We again got 10 rolls.

For a more accurate calculation, you can determine the area of \u200b\u200bthe openings - door and window, and if they are much larger than 5 m 2, one can be taken out of the calculated number of rolls, since it has an area of \u200b\u200b5 m 2.

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

With an image

It is most difficult to calculate the required number of rolls of patterned wallpaper having 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 made taking into account the rapport - the distance between the individual elements of the pattern or pattern. Rapport is usually indicated on the label in the package. Wallpaper with a large rapport gives a lot of waste, so first consider how much it will cost you, and whether to buy them at all.

Wallpapering is an easy task for an experienced craftsman. And from personal experience I can argue that the main problem that had to be most often encountered is the lack of a strip or a whole roll. The customer did not calculate correctly, and you have to buy and spend time. To minimize all risks and simplify the calculation process, it is recommended to use the wallpaper calculator below. Its use should not cause difficulties. And if something is not clear - study the detailed instructions and read the calculation example.

Online Wallpaper Calculator

How to use a wallpaper calculator

In order to correctly calculate the number of wallpapers for a particular room, you must enter the correct source data. Consider each item:

1. The width of the room.
2. The length of the room.
3. The perimeter of the room. This parameter is calculated automatically based on the length and width. It is needed to determine the total area of \u200b\u200ball walls, taking into account their height.
4. Ceiling Height - The distance from the floor to the ceiling.
5. The number of doors in the room. If there are no doors - paragraphs 5, 6, 7 are not set.
6. Door height. If there are several doors and they have different sizes - indicate the smallest height.
7. The width of the door. If there are several doors and they have different sizes - indicate the smallest width.
8. The number of windows in the room. If there are no windows, items 8, 9, 10 are not set.
9. Window height. If there are several windows and they have different sizes - indicate the smallest height.
10. The width of the window. If there are several windows and they have different sizes - specify the smallest width.
11. Roll length. The standard size is 10.05 m. There are also 25 meter non-woven vinyl wallpapers. Carefully study the packaging - this parameter is indicated there.
12. The width of the wallpaper. Standard sizes are 53 cm and 106 cm. They are also indicated on the roll packaging.
13. Rapport of the picture - the height of the picture ( → I ←) That is, if the rapport is 46 (cm), then cutting a strip measuring 2.5 meters (250 cm) from the roll, it will contain 5 sections of 46 cm and one incomplete - 20 cm. Therefore, so that in the next strip the pattern matches the previous one, it is necessary to cut off the extra section of 26 cm (46 - 20).
14. The shifted pattern is a stepwise docking (diagonal docking) of the pattern. This is indicated on the packaging. For example, the designation 46 ⁄ 23 means that 43 is a rapport, and 23 is the distance in centimeters that each next sheet should shift. Noting this item during the calculation, the maximum possible offset to half the rapport will be set.
15. Alignment margin - the distance required for fitting and convenient trimming.

If the marking has the following mark 0I ← (or → I0), then such wallpapers are glued without selecting a picture, and paragraph 13 in the calculator can be left blank. Also, unless stepwise docking is indicated, paragraph 14 is not specified.

Table with labeling of wallpaper by the method of selection (fit) of the picture:

Example of calculating wallpaper using a calculator

First of all, we will calculate without using an online calculator, and then we will compare the results.

Initial data:

• The length of the room is 4 m.
• The width of the room is 3.2 m.
• Ceiling height - 2.65 m.
• One door - 85 cm × 205 cm.
• One window - 135 cm × 135 cm.
• Wallpaper - 10.05 m (length) and 53 cm (width).
• Rapport - 64 cm.
• Straight line drawing, horizontal docking.

Next, glue the wall with the window. The window is centered, and from the corner to the window 0.925 m - or almost 2 strips of wallpaper (106 cm). Pieces go along the top and bottom of the window for 106 cm - for now we do not take them into account. To the corner remains 108 cm, or 2.02 strip.

We consider a wall with a door. Since the width of the door is not significant, you can not even take it into account. We get 7.54 strip(balance 0.46 strip) (4 ⁄ 0,53).

To summarize:

1. 13.58 round to 14 lanes.
2. 2 stripes.
3. 7.54 round to 8 lanes.
4. Total 24 lanes or 8 tubes (3 bands come out from one tube).
5. There are sections above and below the window - 2 strips 80 cm long and two strips 45 cm long. Considering the rapport of 64 cm and the margin for alignment, the remaining 8 tubes may not cover the required sections. Therefore, an additional handset is required.
6. The final result is 9 handsets.
7. The result calculated by the calculator also gives out 9 handsets.

As you can see, the presented wallpaper calculator online fully copes with the task. It is an indispensable tool and saves your time.

For calculation, you will need a measuring tape, a notebook for notes and a calculator.

Room measurements

In the beginning, you need to measure the width, length, and also the height of the room in which they will be glued.

In addition, you should determine the size of the door and window openings. The parameters of windows and doors will help you make the calculation more accurate and not take into account the area that does not need to be pasted over.

How to calculate the wallpaper in the room around the perimeter

The first step is to calculate the perimeter of the room, which is equal to:

Perimeter \u003d (length of one wall + length of adjacent wall) * 2

Calculation of the estimated web height

To find out how long your wallpaper will be, use the formula:

Estimated strip height \u003d room height + ornament pitch (rapport) + margin for upper and lower allowances (5 cm)

Calculation of the number of strips for gluing a room

To do this, you first need to measure the width of the strip of wallpaper that were selected for the paste.

Then we calculate the number of strips required for pasting the whole room:

Number of stripes per room \u003d perimeter / wallpaper strip width

Important! The resulting numbers should be rounded up to an integer value in a larger direction, otherwise you can get a few centimeters of the wall without wallpaper.

Calculation of the number of stripes per roll

After we have determined the number of strips of wallpaper per room, we can calculate the number of strips from one roll. To do this, you will need to find out the length of the roll (usually it is indicated on the label).

Number of strips from 1 roll \u003d roll length / estimated strip height

Important! The resulting numbers should be rounded down to the nearest whole, so that only whole canvases are pasted on the wall.

Calculation of the number of rolls per room

After all the calculations done, we can finally find out the number of rolls for pasting the whole room:

Number of rolls \u003d number of strips per room / number of strips from 1 roll

Important! We round up all the numbers received, because rolls are ordered only intact.

How to calculate wallpaper on a room square

Calculation of wallpaper around the perimeter of the room is not always suitable, since the presence of windows and doors is not taken into account, so you have to count by area.

Wall area calculation

To calculate the area, use the following formula:

Total area \u003d wall length * wall height

Now we calculate the area of \u200b\u200bthe walls to be glued with wallpaper. To do this, you first need to calculate the area of \u200b\u200bwindow and doorways, and then use the formula:

Wallpapering area \u003d total area - area of \u200b\u200bwindows and doors

Calculation of the number of rolls

A standard roll of 53 cm wide and 10 m long is usually enough for 5 sq.m. rooms.

To calculate the number of rolls for the whole room you need:

Number of rolls \u003d room area / area that can be glued with 1 roll

Important! Round off the resulting number to a larger number.

If your wallpaper with a picture

In case there is a large drawing on the wallpaper, find out his report, and then calculate the ceiling height multiple to him and carry out calculations already with it.

For example, the wall has a height of 2.6 m, and you decided to purchase a wallpaper with a step of 40 cm. It turns out that you need to cut to pieces 2.8 (0.4 * 7), because if you cut to 2.6, the picture will not match.

So recount everything that you measured, only as if your walls were 2.8 meters high, not 2.6.

Tips

If you are still not sure of the correctness of your calculations, then the help tables are presented below.

How to use tables?

First you need to calculate the perimeter or area of \u200b\u200bthe room, depending on which table you will use.

Area Tables:

To use the table below, you need to determine the length of the roll, and also make sure that the width of the strip of wallpaper is 50 cm. Then you can easily determine the number of rolls that you need.

For the next table, in addition to the area of \u200b\u200bthe room, you only need to measure the height of the ceilings. After that, you can find out the required number of rolls per room.

Perimeter Tables:

In order to use the tables below, you will need to determine the bandwidth of the selected wallpaper, as well as the long roll. After that, you measure the height of the ceiling and look at the table how many rolls of wallpaper will be needed.

Roll size (strip width / roll length \u003d pasting area): 0.53 m / 10.05 m \u003d 5.33 sq.m

Roll size: 0.53 m / 15 m \u003d 7.95 sq.m

Roll size 1.06 m / 10.05 m \u003d 10.65 sq.m

To make a simple but quite attractive repair in a standard room, it’s enough to use high-quality, inexpensive wallpapers. They will be an excellent means of decorating the premises, providing good operational and aesthetic qualities.

Calculating the volume of building materials to decorate a room is as difficult as simple. To begin with, often the trick is in uneven walls or ceilings, in the end it turns out not too nice when in the end there is a little not enough calculated material to finish the repair. Therefore, we will try to take into account the maximum of factors in order to achieve the desired result. Learn how to calculate wallpaper on a room.

You will learn about:

Measurements

An important basis for further action is accurate measurements. Roulette is required to complete this operation. With it, we first find out the perimeter of the room, not taking into account the width of the doors and windows, as well as the areas above or below these elements.

Based on these data, it is already possible to calculate wallpaper per room. The resulting figure must be divided by the width of the wallpaper to determine the number of paintings. The length of the roll must be divided by the height of the ceilings, which will allow you to calculate the number of paintings in one roll. Now it remains to divide the total number of whole canvases by the amount that is obtained from one roll.

As a result, we get the number of integer bands. Still incomplete pieces must be added to them, which must be taken into account in the calculations. You can count them by the same principle.

If there is a picture

We considered the calculation option, if monophonic wallpapers are used, and if products with a pattern are used that require the combination of paintings, what should I do? The number of wallpapers per room in this case is calculated a little more complicated.

It should be borne in mind that less will be calculated per web in a roll.

Example

We give an example of how to calculate how much you need, how many rolls of wallpaper. For example, we have a premises area. 12 sq. m. 2.5 m high. The room has a window (1.2x1.5 m) and a door (0.8x2.1 m). Suppose we chose a material with a roll width of 60 cm and a length of 10.5 m.

In this case, the perimeter will be 12 m, minus the width of the window and door. As a result, you need 20 paintings: 12 / 0.6. With a roll length of 10.5 m, 4 pieces of wallpaper are obtained. As a result, whole stripes will be 5: 20/4.

It is also necessary to take into account the areas above the door, as well as above and below the window. There will be enough scraps for this. However, it is recommended that you add at least one more roll for an area of \u200b\u200b12 square meters. m. Therefore, if the wallpaper will be plain, you can buy at least 6 rolls, with a picture - 7.

A room of 18 sq. M is calculated similarly. m. How many rolls will be required in this case? Let's try to calculate according to the old scheme.

So, the perimeter will be 20 m. 34 paintings will be required: 20 / 0.6. A whole stripes get 8.5. That is, you need to buy without a picture 10, with a picture - 11 rolls. These are the recommendations for rooms measuring 18 square meters. m

The selected examples are not random, since these sizes of premises are 12 square meters. m and 18 square meters. m. are the most popular. Therefore, for many, the task of how to calculate how much wallpaper is required per room will be greatly simplified.

To summarize

Do not neglect such recommendations, since they allow you to lay a qualitative foundation for further actions, which means that the result will depend on them. The calculation should be done as accurately as possible, this will eliminate the need to buy material at the height of the repair process.

Calculations can be compared with the preparation of walls for wallpapering. If the procedure is implemented efficiently, the result will please with attractiveness. It remains to recommend not to rush with the calculations. As they say, it’s better to measure seven times, but cut off once ...

Sooner or later, a moment comes into each house when the need arises for another repair. Households are terrified of all the inconveniences that will have to be experienced during it. The idea is comforting that the compensation for the nerves spent will be the comfort and coziness of the renovated apartment.

Starting repairs, first of all, it is necessary to draw up a work plan taking into account the financial capabilities and wishes of all family members. Then proceed with the selection of materials. Nowadays, this is not a simple matter, because you need to optimize the ratio of quality and price. The most difficult to choose a wallpaper, because in addition to technological qualities, it is also important to consider their conformity in color and texture to the design decision of the design of the apartment as a whole. The effectiveness of the entire repair depends on the correct choice of wallpaper, because it is this type of building material that affects the internal appearance of the apartment. It is also extremely important to correctly calculate how many wallpapers are needed in rolls, so that they are enough for the entire area of \u200b\u200bthe walls, but there are not too many left.

How much to buy wallpaper?

There are several methods for calculating the number of rolls, depending on the type of wallpaper and their size. In any case, the calculations need to start with measuring the area of \u200b\u200bthe surface to be glued. Its number does not include the area of \u200b\u200bwindows and doors. Knowing the height of the wall and the footage of one roll, you can calculate how many paintings from it are obtained. If the height of the walls is 230-250 cm, then four sheets with a total width of 2 12 centimeters (4 rolls x 53 cm) are laid in one standard roll. That is, for every 2 meters of the perimeter of the room area you need a roll of wallpaper. If the perimeter of the room is divided into 2 meters, you get the required number of rolls.

The calculation is quite simple, but it is still necessary to take into account such a technological indicator of wallpaper as rapport or the number of sections with a large pattern on one panel. This amount must be the same in all segments so that the pattern matches. Therefore, wallpaper with a large pattern is bought with a margin.

Specialists calculated tables to determine the required number of paper rolls of standard sizes, depending on the perimeter or area of \u200b\u200bthe room.

Calculation of the need for wallpaper rolls measuring 10.05 x 0.52, taking into account the perimeter of the room (including the area of \u200b\u200bwindows and doors)

You can also use wallpaper calculatorwhich is presented below. Just specify the perimeter of the room and the height of the walls, as well as the length and width of the rolls and get how much wallpaper you need to buy in order to paste on a room or corridor.