Wallpaper calculator. How to calculate how much wallpaper you need per room: use an online calculator How to calculate wallpaper calculator

Calculate number of wallpapers required for pasting a room is much easier than it seems. To do this, you just need to measure the room, study the label of the selected wallpaper and make simple calculations using the wallpaper calculator.

How to calculate the number of wallpapers for a room: step by step instructions.

What determines the consumption of wallpaper? There are three main factors that affect number of wallpaper rolls required for pasting the walls in the room:

The size and shape of the room. Everything is clear with this: without knowing at least the length, width and height of the walls of the room that is planned to be wallpapered, it will not work to make any calculations.
The width and length of the selected wallpaper roll. Most often, there are two types of wallpaper - 0.53 m wide and 1.06 m wide. The length of the wallpaper in a standard roll is 10 m plus or minus 5 cm. Some types of wallpaper may differ in width and length, so when going to the store for wallpaper, you should take a calculator with you in order to recalculate if necessary.
The size and complexity of the pattern on the selected wallpaper. So, wallpaper with a large or intricate pattern requires pattern matching, which is why wallpaper consumption increases significantly. For comparison: from one roll of wallpaper without a pattern or with a pattern that does not require docking, 3-4 panels are obtained, and from a roll with a large pattern - only 2-3, depending on the height of the walls of the room.

That is, before proceeding with the calculations, you need to measure the room (preferably taking into account doors, windows, niches, bay windows and other convex-concave parts of it), choose the wallpaper you like and find out their exact dimensions by examining the label or information provided on the manufacturer's website.

To measure the room, you will need a long and flexible tape measure, an assistant who will hold the second end of the tape measure, and a stepladder if the ceilings in the room are high.

First you need to measure the room from corner to corner along one wall in length, then along a perpendicular wall - the width. And the last measurement - the height of the wall from floor to ceiling.

If the room has a complex shape, for example, with a bay window or a protruding beam, then you need to separately measure the wall where this planning element is present, laying a tape measure along all its recesses and protrusions.

Separately, you need to measure the width and height of the window and door, in order to then subtract their area from the total number of wallpaper panels.

All values obtained as a result of measurements must be recorded - they will be required for further calculation number of wallpapers to the room.

Studying information about selected wallpapers.

The easiest way to get the necessary information about the size of the selected wallpaper roll is on the website of the seller or manufacturer. If you couldn’t find the wallpaper you liked from home, you will have to go to the store and study the label on the spot.

The wallpaper label shows the dimensions of the roll (length and width), wallpaper type(non-woven, vinyl, etc.), country of origin and lot number. First of all, you need to find the dimensions of the roll - they are needed to calculate the number of wallpapers. The type of wallpaper will help you choose the right wallpaper paste, and the same lot number ensures that the wallpaper rolls do not differ in color.

Having completed all the measurements and received information about the selected wallpaper, you can proceed to the calculations.

Room length × 2 + Room width × 2 = Room perimeter (the sum of the lengths of its walls).

If the room has a complex shape, then the perimeter is calculated as follows:

The length of the first wall + The length of the second wall + The length of the third wall + The length of the fourth wall = The perimeter of the room (the sum of the lengths of its walls)

The resulting value should be written down, and if it turned out to be fractional, then rounded up to a whole number.

Example: room perimeter = 5 m (room length) × 2 + 3.75 m (room width) × 2 = 17.5 m (room perimeter).

The fractional number must be rounded to the nearest integer = 18 m. This is the perimeter of the room, which is needed for further calculations.

Next step - calculation of the number of panels of wallpaper to cover the walls of the room. This will require the values of the perimeter of the room and the width of the wallpaper roll. These data must be substituted into the formula:

Room perimeter ÷ Wallpaper roll width = Number of wallpaper panels.

Example: 18 m (room perimeter) ÷ 1.06 m (width of selected wallpaper roll) = 16.981.

The number of panels cannot be a fractional number, which means that it must be rounded up to the nearest integer = 17 panels.

Number of panels × (Wall height + 15 cm) ÷ Wallpaper roll length = Number of rolls.

Before substituting the height of the walls into the formula, you need to add another 10-15 cm to the measurement data. This is due to the fact that the walls in apartments are rarely perfectly even, and the height difference can reach those same 10-15 cm.

Example: 17 (number of panels) × 3 (wall height = 2.75 m + 15 cm) ÷ 10 m (wallpaper length) = 5.1 (number of rolls).

Calculation of the number of wallpapers around the perimeter of the room.

In principle, five rolls of wallpaper should be enough, especially if you subtract the area of the door and window openings from them, and use remnants of wallpaper. However, experienced craftsmen advise always rounding up and buying wallpaper with a margin. That is, it would be more correct to buy not five, but six rolls, and if the wallpaper has a large pattern, then seven, especially since there may be a marriage in some roll or the wallpaper will be rubbed or dirty during operation. Having a supply of wallpaper, it is easy to fix such shortcomings without re-gluing the entire room.

Skill count the number of wallpapers- a useful skill that will save both strength and the family budget, especially since it is not difficult to cope with this task.

So that you do not make a mistake in counting the wallpaper that is needed for repairs, you need to correctly calculate their volume. Well, if there are extra ones, you can just use them later.

But if a roll or a few centimeters is not enough, in this case you will have to work hard. And then, not the fact that you will find exactly the same party. The canvases may differ in the tone of the pattern, and this is not entirely good.

Any person can decide on the required volume, even without a special construction education or work experience at a construction site.

Especially if there is no pattern on the wallpaper. You just need to know how to make the correct calculation. And here you need to follow the following sequence:

First of all, you need to measure the length and height of the walls.
Now you need to calculate their total perimeter. To do this, add the lengths of two adjacent walls and multiply by 2. Let's say we have walls of 6 and 5 meters, which means that the perimeter is 22, i.e. (6+5) x 2=22 m. Standard roll size is 53 cm wide and 10 m long.
Wallpaper is easier to calculate by the number of required stripes. For example, the height of the wall is 2.5 m, therefore, 4 strips will be obtained from the roll. And the total width will be equal to 212 m, i.e. 4 x 53 \u003d 212 cm. Now we perform the arithmetic operation of dividing 2200 cm: 212 cm \u003d 10.38 rolls. Round up, and you get 11 pieces.
If you need to wallpaper the ceiling, then the calculation must be made separately.

If you have purchased wallpaper with a pattern, then the calculation described above will not be able to take into account the rapport, this is the distance between the elements of the pattern.

Such canvases are glued strictly according to the pattern, without violating the integrity of the overall perception. Typically, rapport is indicated on the package, and the larger it is, the higher the wallpaper consumption will be.

But if the cash costs do not scare you, then you need to observe some nuances and proceed as follows:

Measure the perimeter of the walls and the height of the ceiling with a tape measure. Solid walls and the distance under and above the windows (doors) measure separately.
You need to know the dimensions of the roll. For example, its width is 0.53 m, length is 10.5 m, rapport is 0.2-0.4 m. Ceilings are 2.6 m. Therefore, from one roll you get 3 sheets 3 m long = 2.6 + 0.4.
If you measured the walls with sheets, then you need to divide the number of sheets on the walls by the number of sheets in the roll. And if meters were used in the calculations, then one roll will be equal to 1.59 m. = 0.53 x 3. We divide these figures by the footage of the perimeter of the walls.
The pieces you have left may be suitable for wall sections above a door or above a window.

The main feature of liquid wallpaper is that they have no seams. And this feature gives the room a certain completeness.

This universal finishing material is pleasant to the touch, safe for humans and allows designers to create original and unique projects.

For gluing liquid wallpaper in your apartment, you need to determine the number of packages that is necessary for the production of work.

To make a correct calculation, it is necessary to divide the area of \u200b\u200bthe walls by the consumption of one package. This information is printed on each package. Usually one package is enough for a surface of 3-5 m 2 . Let's say the area of the walls of the room is 40 m 2, and the average consumption of one package is 4 m 2. By dividing 40: 4 we got the required consumption - 10 packs.

But when purchasing liquid wallpaper, be sure to buy their quantity with a margin of 1 - 3 packs. Liquid wallpaper can be applied on an uneven surface with small defects. This means that the consumption of the material used may increase, so take care of this in advance.

Wallpaper calculation is one of the main stages of preparatory work, which allows you to obtain data on the required amount of finishing material. This procedure should be approached with all responsibility, with an erroneous calculation, many problems will arise during the execution of wall cladding. There are several methods that allow you to get the correct result.

How to calculate wallpaper? It is necessary to resort to a phased implementation of actions, this will help to take into account all the nuances and get an accurate result. Many people think that determining how much wallpaper you need is simple. But in the end, important factors are missed, which leads to rather unpleasant consequences.

Determining the parameters of various wallpapers

It’s worth mentioning right away that without choosing a specific type of material, the calculation will be conditional. Therefore, work begins with the determination of the standard parameters of all available varieties, from which the final choice will be made.

So, there are the following sizes:

On a note! In order to calculate how much wallpaper is needed per room, it should be borne in mind that in addition to the standard length of 10.05 m, there are roll options with an indicator of 5, 8, 12 (15) and 18 meters.

Canvas fit

It may seem that knowing all the parameters, you can accurately determine the consumption of wallpaper. But it is quite difficult to imagine a situation where all the stripes are superimposed on the surface with absolute accuracy. In fact, there are a number of factors that affect the correctness of the calculation:

All stages of the calculation are taken into account without fail, this helps to avoid annoying and ridiculous mistakes.

On the standard marking there are several designations related to the fit of the pattern, they directly relate to the number of rolls

A logical question arises: why determine exactly how much wallpaper you need per room? Indeed, if you purchase material with a sufficient margin, then absolutely exact parameters are not needed, but there are situations when expensive products are used in the work or financial possibilities are limited.

On a note! It seems to many that in case of a shortage of material it is better to buy it in addition - this opinion is erroneous. The fact is that when using different batches of goods, the appearance of a different tone is almost guaranteed.

There are many shades of the color spectrum and you should not expect that in another batch of wallpaper the palette will match 100%

Determination of room parameters

Based on the available parameters, it is possible to calculate the wallpaper for the room with the greatest accuracy.

Calculation formulas

There are two main ways to determine how much wallpaper you need per room, each of which has advantages and disadvantages.

Perimeter calculation

Basically, the formula is quite simple:

The perimeter of the room is determined.
The length of the strip is calculated. To do this, a small margin is added to the height and, if necessary, rapport.
Next, count the number of lanes. To do this, the perimeter is divided by the width of the roll of selected material.
Then you need to calculate how many strips are included in one roll. To do this, the total length of the roll is divided by the height of the web, taking into account all allowances.
It remains only to determine the number of wallpaper rolls per room.

Knowing the width of the roll, you can roughly calculate the amount of material per room

Area calculation

The area of the room is determined. From these data, a specific volume is calculated, which will be subjected to finishing.
The area of the selected type of material is calculated taking into account one roll.
The quantity of required products is calculated.

On a note! This method allows you to get more correct indicators, but it does not take into account the characteristics of the room. Therefore, it is often worth adding some margin.

Theoretically, when calculating the area of \u200b\u200bwalls, you need to subtract the area of \u200b\u200bwindows and doors, but in reality it is better not to do this, since a margin is needed

Calculation examples

For convenience, several examples can be given that allow you to calculate how much material is needed, depending on the method chosen.

Room of 12 sq. m

Since the total area is 12 m2, it means that the room has a length of 3 meters and a width of 4 m. The ceiling height is 2.5 m. Thus, it is necessary to determine how many rolls of wallpaper will be required:

Room perimeter: 3+4+3+4 = 14 m + 5% = 14.7 m.
You need to calculate the number of stripes depending on the type of material. In this case, a standard size of 53 * 1005 cm is used. Then, with a height of 250 cm, taking into account the margin and rapport, 260 cm is conditionally obtained.
Based on the fact that the width of the product is 53 cm, and the perimeter of the room is 1470 cm: 1470/53 = 27.7, that is, 28 stripes.
There are 3.8 strips in one roll, which is obtained if 1005 is divided by 260. But only the integer value is taken into account, 3 segments will go to continuous gluing, and the rest will go to areas above and below the openings.
Thus, for a room of 12 m2 you will need: 28/3 = 9.3. Which is 9 rolls, 0.3 is surplus.

If you calculate the consumption, it turns out that there is a lot of excess material, so it is recommended to choose products of a different length.

Room 20 sq. m

The area is calculated from the calculation: 4 * 5, the perimeter is: 4 + 5 + 4 + 5 + 5% ≈ 19 m. And the ceiling height and margin - 235 cm.
The material is selected in size 106*1005.
Required number of lanes: 1900 (19 m) / 106 = 17.9. You can round up to 18.
1005/235 = 4.2. That is, there are 4 strips in a roll.
Then 18/4 = 4.5. Thus, with a margin, exactly 5 rolls will be needed.

Naturally, the total amount of material depends on the type chosen.

Room of 18 sq. m

With this value, adjacent walls will be 4.5 and 4 meters. Ceiling height - 3.2 m. Therefore, the calculation of wallpaper for an area of 18 square meters. m is done like this:

The wall area is calculated: 4.5 * 3.2 \u003d 14.4 and 4 * 3.3 \u003d 12.8.
It must be taken into account that there are two opposite walls with approximately the same area, then 14.4 * 2 + 12.8 * 2 \u003d 54.4 m2 - the total area of \u200b\u200bthe walls.
When choosing a product with parameters of 0.53 * 15 m, the roll area will be 7.95 m2.
Then for a room of 18 m2 you will need: 54.4 / 7.95 = 6.8, which corresponds to 7 rolls of wallpaper. This figure already includes the required headroom, as openings have not been deducted.

Using a table to determine wallpaper consumption

To determine the amount of material required per wall, you can use or use a table that is easy to check the calculations.

The calculation according to the provided tables is made without taking into account the selection of the pattern. When purchasing wallpaper with a pattern, you need to consider that for every 6-7 rolls you need to take one extra. For example, for a room of 24 sq. m with a ceiling height of more than 2.5 m, 15 + 2 \u003d 17 rolls of wallpaper of a standard size will be required.

A tape measure will help with this, but the type of wallpaper must be taken into account. Wallpaper with a pattern, paper, vinyl, fabric wallpaper, they all have a feature of length and width, as well as gluing on the walls, so the calculation must be carried out taking into account all factors, and not just the size of the room. There are several options for calculating the required number of wallpapers per room.

The number of wallpapers can be correctly calculated, knowing the perimeter of the room to be pasted over. The perimeter is the sum of all the sides, which means the perimeter of the room is the sum of all the sides along the length. How to get this number? In order to measure the perimeter, you will need a construction tape measure. The length of all rooms must be measured with a tape measure, it turns out 4 walls, 2 walls will be the same length, the remaining 2 walls will have a different length. Consider this on the example of a wall whose perimeter is 4x2. Two walls are 4 meters long and 2 walls are 2 meters long. The formula is as follows: 4x2 + 2x2 \u003d 12 meters the perimeter of the room.

Find out the height of the walls;
Calculate how many wallpaper strips come out of one wallpaper roll;
Calculate the number of required wallpaper strips for the room;
Calculate the number of wallpaper rolls needed.

The height of the walls of the room is measured in the same way as its width, using a tape measure, the tape measure weighs a little, it is very convenient to measure. The standard wall height in residential premises and apartments is 2.5-3 meters. To find out how many strips of wallpaper will come out of one roll of wallpaper, you need to divide the height of the walls by the length of the wallpaper in the roll, but for this you need to know how many meters of wallpaper are in one roll. If the wallpaper roll is standard, it has a length of 10 meters, if the height of our walls is 2.5 m, then the calculation formula will be: 10:2.5=4. It turned out that 4 stripes will come out of one roll of wallpaper. After the number of wallpaper strips from one roll has been calculated, you can calculate how many wallpaper strips will be required for a given room from the selected roll. To do this, you need to measure the width of the wallpaper roll and divide it by the perimeter of the room.

With standard wallpaper with a width of 53 cm and with 12 meters of the perimeter of the room to be glued, as in the example, the following formula is obtained: 12: 0.53 = 23, rounded up, which means that 23 strips of wallpaper will be needed to glue the room.

And the last step is to calculate the amount of wallpaper needed per room. The required number of strips for the room must be divided by the number of strips in the roll according to the formula: 23:4 = 6, rounded up. It turns out that for a room of 4x2 meters you will need 6 rolls of wallpaper with a margin.

Approximate calculations are given, since each room and room in it can have different heights, widths, differences, so it is worth making accurate and careful calculations, taking into account possible uneven walls and ceilings.

How to calculate the area of \u200b\u200bthe walls in a room (video)

How to calculate wallpaper by room area

To carry out this calculation, it is necessary to measure the entire area of \u200b\u200bthe room and its wall around the entire perimeter as follows:

Measure the length, width and height of the wall surface;
Add the length and width of the walls and multiply by 2, because. in the building, 2 identical walls and multiply by the height of the wall;
Multiply the width of the roll by the length.

After measuring the area of the room, you can consider the required number of wallpapers for gluing. Using the example of a room with an area of 4x2 m, you can draw up a formula for calculating wallpaper, 2x (4 + 2) x 2.5 \u003d 30 m 2, you get a pasted area. Next, you need to calculate how much area one roll will seal. Using the example of a standard roll, we obtain the formula: 0.53 m (standard roll width): 10 m (standard roll length) \u003d 5.3 m 2. One roll of standard wallpaper in width and length can cover 5.3 m 2 of the wall. The last step to correctly calculate the required number of wallpaper rolls per 4x2 meter room is to divide the surface area by the area of the wallpaper roll, for example, 30:5=6. For wallpapering a room with an area of 4x2 m and a height of 2.5 m, you will need 6 rolls of wallpaper. Both as a result of the first measurement, and according to the results of measurement by the area of the room, 6 rolls of wallpaper come out.

Calculations according to the formula are very accurate, there will be no extra wallpaper, as well as a lack of them, but when calculating, it is worth considering the features of the room for which the wallpaper is glued.

It is better to take wallpaper with a small margin in order to be able to restore the wall in case of damage to the wallpaper than to look for similar wallpapers later, which you can not find, an extra cut will always come in handy.

Calculation of wallpaper according to the drawing

The most difficult calculation of the required wallpaper for a room is the calculation of wallpaper with a pattern, it is difficult because the pattern needs to be selected, during which a lot of waste is generated. If there is a slope on the walls, uneven corners, or there is a difference in the height of the walls, there may be differences in the pattern. Proper gluing of wallpaper with a pattern, accurately selecting the ornament, will provide a good view of the room, without defects.

An important factor is the methods of wallpapering. Wallpaper with a pattern is glued only joint to joint in order to achieve a harmonious combination of the pattern.

In order to correctly select the required number of wallpaper with a pattern for a room, first of all, it is worth focusing on rapport, on the allowable distance between the elements of the pattern. Such an indicator for each type of wallpaper and pattern on them is individual. On wallpaper with floral patterns, the rapport is less, and on wallpaper with geometric shapes and lines, the rapport is always greater. The consumption of wallpaper with geometric lines will be more than with floral patterns.

On each roll of wallpaper that requires selection during the gluing process, the exact variant of the rapport is indicated:

Geometry - above 50 mm;
Floral print - up to 50 mm;
Abstraction - 10-50 mm rapport.

The required number of wallpaper with a pattern is calculated according to the width of the pasted surface and its area, as in the selection of ordinary wallpaper. The only feature is the rapport indicator on the roll. A large rapport indicator leads to the fact that you will have to buy 2 or more rolls more than ordinary wallpaper without a pattern, and there will be a lot of leftovers.

Before choosing wallpaper with a pattern for your home, you need to calculate the area to be pasted, the number of wallpapers needed and the price, will it be profitable for the price? It is very difficult to pick up waste from wallpaper with a pattern to the places of slopes, openings, and they almost never fit anywhere.

Ready-made calculations of the number of wallpapers

In order not to waste time on measuring and calculating the area for wallpapering, a ready-made calculation table will help you accurately and quickly calculate the required number of wallpapers on the walls, which you can view and get ready-made indicators.

Focusing on the finished table, you can get data about:

The height of the walls and ceilings of the room;
room perimeter;
Roll length;
The number of rolls and strips of wallpaper.

These tables are approximate and when cutting wallpaper strips before gluing, you need to leave a little extra length to hide possible gaps on the walls.

Using ready-made indicators for calculating the walls of a room, as well as taking into account the width of wallpaper rolls, you can quickly and accurately calculate.

Calculation of the number of wallpapers (video)

Wallpapering is always a laborious process, even more difficult to find the exact right amount of wallpaper per room. Conducted accurate calculations of the size of the room using a tape measure, and sometimes an assistant, you can get the right indicators and calculate the right amount of wallpaper. When everything goes well in the repair, the repair will not be a burden, but a pleasure.

In order to determine the cost of services for wallpapering by a private master, you need to know the total area of \u200b\u200bthe walls and the perimeter of the room. There are services that are calculated by square meters, such as gluing or priming. And there are services for which you need to know the running meters, for example, installation of skirting boards or gluing curbs. It is not necessary to use the services of measurers, just remember the school curriculum in geometry. This information will also help in calculating the required amount of wallpaper, glue, and so on.

Wall area = room perimeter * ceiling height

First you need to measure the width and length of the room. We must say right away that the obtained measurements of the length and width of the room must be converted into meters. For example, if the length of the room is 325 centimeters, then we consider 3.25 meters.

Room length 4.75 meters
Room width 3.25 meters

Calculate the perimeter of the room, which is equal to the sum of all sides.

P \u003d (a + b) x2, where a and b are the width and length of the room. Therefore (4.75 + 3.25) x2 = 16 meters.
The perimeter of our room is 16 meters. P=16 meters.

Now you need to measure the height of the room. We measure the height of the wall - we got 2.71 meters.
h=2.71 meters.

To get the area of the walls, you need to multiply the perimeter of the room by the height of the walls.

S walls \u003d Pxh, where h is the height of the walls.
S walls \u003d 16x2.71 \u003d 43.36 meters.

The area of the walls of our room is 43.36 square meters. meters. S=43.36 m2.

From this figure, you need to subtract the area of \u200b\u200bwindows and doors - after all, there is no need to glue wallpaper there. We have one window in the room, the area of \u200b\u200bwhich is 1.95 m 2 (1.3m x 1.5m). Door area 1.17 m 2 (0.61m x 1.92m). The sum of the areas of windows and doors that are not involved in wallpapering is 3.12 m 2.

The net area of the walls is 43.36 - 3.12 \u003d 40.24 m 2.

In cases where the room is of a non-standard size and does not look like a rectangle, you will have to calculate the area of \u200b\u200beach wall separately and then sum them up.

Table of wall areas for wallpaper and painting

Below is a table that will help you quickly determine the area of \u200b\u200bwalls for wallpapering (or painting). To calculate the indicators, the typical area of windows and doors was used. Wall area indicators vary according to the height of the ceiling of the room:

Room area, m 2	Room ceiling height 2.50 m	Room ceiling height 2.70 m	Room ceiling height 3.0 m
10	29	31	33
11	30,5	32,5	34,5
12	32	34	36
13	33,5	35,5	37,5
14	35	37	39
15	36,5	38,5	40,5
16	38	40	42
17	39,5	41,5	43,5
18	41	43	45
19	42,5	44,5	46,5
20	44	46	48
21	45,5	47,5	49,5
22	47	49	51
23	48,5	50,5	52,5

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