How to calculate how much wallpaper you need calculator. Calculation of wallpaper for a room - looking for the optimal solution to the problem

Standard wallpaper sizes

Our compatriots used to be the most acceptable standard wallpaper width, which was 53 cm, and the length was 10.05 m. These dimensions are still confirmed by the interstate standard.

Modern Russian manufacturers to this day adhere to the listed sizes, but they have begun to produce wide wallpaper for walls - 1.06 m much more often, as they are of increasing interest to our compatriots. For German or Italian companies, the width of the wallpaper roll is 0.53; 0.6; 0.7; 1.06; 1.4 m

To glue wallpaper with a width of 1 meter, unlike the traditional 0.53 m, is much faster, and there are fewer seams on the walls.

A number of manufacturers produce products of various sizes. The dimensions of textile wallpaper for walls can be 3.18 m wide and up to 50 m long. But it is worth noting that such products are very limited, as they are expensive and status.

In this case, manufacturers are guided by GOST 6810-2002, and you will read more detailed information about them in the article "". The table shows the dimensions of the textile wall covering.

As we see , meter wallpapers or canvases close to this standard are offered by manufacturers from any material.

But still, according to studies compiled by ABARUS Market Research according to FSGS RF 09.12.2015 "Market of rolled wall materials: paper wallpaper, non-woven, vinyl, glass wallpaper", revealed the dynamics of the increase in the share of vinyl wallpaper in comparison with the total production volume.

Offer Chart

The table shows the characteristics of vinyl sheets, they are produced according to the state standard.

A roll of premium wallpaper from the Belgian factory Omexco has a width of 90, 100 and 140 cm, while the collections of the French company Elitis offer samples with a width of 70 and 90 cm. According to our research, Russian consumers until recently preferred wallpaper for walls with a roll width of 0, 53 m. But according to data collected in 2012, wide wallpaper sizes are now a priority - 1.06 m.

After analyzing the sizes of wallpaper in rolls that are currently being sold, we have compiled a table where we have classified all the wall paintings in demand.

The formula for calculating the square of the roll

Knowing the width and length of the roll, it is easy to calculate its quadrature.

$\quicklatex(size=25)\boxed(roll_s = (A\times B)$

• S roll - area;
• A - width;
• B is the length.

Let's say we need to find out how many squares there will be in a roll meter canvases with a length of 10 meters. That is, A \u003d 1.06 m, B \u003d 10 m, which means

S \u003d 1.06 x 10 \u003d 10.06 m 2.

Instructions for calculating the number of wallpapers on the walls

For this, several formulas are used, because not all rooms are rectangular - there are rooms of various geometric shapes:

• oval;
• trapezoidal;
• triangular;
• multifaceted.

Rectangular walls

We use a regular tape measure to get an accurate result. To correctly calculate the wallpaper for any room, measurements are taken in meters, accuracy up to one centimeter (two decimal places) is sufficient.

1. Calculate the area of ​​\u200b\u200beach wall, remove the quadrature of door or window openings from it, add up the resulting numbers.

Calculate the area using the formula: $$\quicklatex(size=25)\boxed( S = ((a\times h))+((a_(1)\times h))+((b\times h))+( (b_(1)\times h)))$$

• S is the area of ​​the wall;
• h is the height of the room;
• a, а1 – d>length;
• b, b1 - width

After counting, subtract the area of ​​​​the openings and get the required figure.

1. Measure the perimeter of the entire room, multiply it by the height, subtract the area of ​​​​windows or doors from the resulting quadrature.

Perimeter - the sum of the lengths of all sides of the room, it is better to measure by the floor. Measure the length of each wall from corner to corner and add up the 4 numbers..
$$\quicklatex(size=25)\boxed(P = AB+BC+CD+DA)$$

• P - the perimeter of the room;
• AB, BC, CD, DA - wall lengths.

Multiply the result by the height to get the area. We will calculate according to the formula:

$$\quicklatex(size=25)\boxed(S = (P\times h))$$

• S is the area of ​​the room;
• P is the perimeter of the room;
• h is the height of the wall.

To make the calculation of wallpaper according to the area of ​​​​the room reliable, it is necessary to subtract the area of ​​door or window openings from the total area of ​​\u200b\u200bthe walls. Having a tape measure, this is not difficult to do, just measure their height and length. But we offer you tables with their standard sizes.

The table shows the overall dimensions, area of ​​window and balcony door blocks made according to GOST 23166-99 which apply to products made of wood, plastic, metal alloys.

The figure shows various design options for window and balcony door blocks.

Internal wooden doors are manufactured according to GOST 6629-88 and standard sizes of typical openings are shown in the table.

In addition to standard door sizes, when all parameters are known, there is a possibility of installing non-standard canvases. Especially this practice is used in low-rise construction.

The area of ​​window and door openings is measured along the outer contour of the box.

The diagram shows the dimensions required for the calculation.
$$\quicklatex(size=25)\boxed(S = (A\times h))$$

• S - opening area;
• A - the width of the opening;
• h is its height.

If it is not possible to determine the exact dimensions, then the width dimensions are easy to find on your own.

To do this, the width of the opening is determined by the formula:

A of the opening \u003d A of the canvas + A of the box ∗ 2 + A of the spare gap for filling with mounting foam (on both sides of the canvas).

The height of the opening is also considered:

opening h = h canvas + h (thickness) of the box + h threshold + h spare gaptop and bottom.

To calculate the arched opening, you must:

1. Visually break it into a rectangle and a semicircle.

$$\quicklatex(size=25)\boxed(S = (A\times h))$$
Where:

• S - opening area;
• A - opening width;
• h is its height.

b) make another calculation according to the formula:

$$\quicklatex(size=25)\boxed(S =(\frac (\pi\times R^(2))(2)))$$

• S - opening area;
• π is a constant number, the value of which is 3.14;
• R is the radius, which in this case is equal to half the length between opposite walls.

1. Add up the resulting areas and get the total area of ​​​​the opening.

You need to know that according to the standards, depending on the functional purpose of the room, the dimensions of the door panels have different sizes.

Walls with complex configurations

If you know how to correctly calculate how much wallpaper you need for a room that has various shapes, these tables will help you cope with the task.

There are also rooms with round configurations.

Their area will be calculated using the following formula:

Attic rooms have such design features.

Trapezoidal wall shape

Lovers of extraordinary interiors

Before counting the number of wallpapers for any room, take the right measurements. If you use a laser tape measure, then make sure that its beam is directed strictly perpendicular to the surface. Otherwise, there will be a large error in measurements and final results.

You can determine how many rolls of wallpaper you need to wallpaper a room in the following sequence:

But if you want to know the exact figure without tedious calculations and knowledge of geometric formulas, then the calculation of the number of wallpapers per room is presented in the following table. To compile it, you need:

• area of ​​the room;
• ceiling height;
• data on how many square meters (m 2) are in one roll of wallpaper (length times width).

The data is calculated for an average room with one door and a window, so you will need to subtract no more than 7 m from one roll and discard 10% of the real area for trimming.

If the sheets need to match the pattern, you will have to add 15-20% - for every 6 rolls lay one more additional one.

Expert opinion website

We will also tell you how to determine the number of sheets in one roll. To do this, you need to know how many meters is the total length (indicated on the packaging insert) and the height of the future canvas. Let's say the length of the roll is 10.05 m, and the height of the web is 3.45 m.

10,05:3,45=2,91

In this case, an integer 2 is obtained, which means that only two full-fledged canvases can be obtained from one canvas of this length. The remaining 3.19 m long cut can be put into places of lower height or left in reserve. But if you need to customize the pattern, you will be left with an even smaller piece.

It is important to remember that most of the paintings are made with a compatible pattern, therefore, the consumption of wallpaper per room will be greater than in the case of simple wallpaper without patterns.

Learning to calculate the required number of wallpapers per room: table and formula

In order to paste new wallpaper, it is not necessary to invite builders. Such cosmetic repairs can be done on their own. The main thing is to buy the right amount of material and carefully study the instructions for gluing on the package. But how to correctly calculate how much wallpaper you need per room? Calculation rules for home repairs.

Measurement matters

The basis of construction calculations is accurate measurements, for which you will need a construction tape measure. First you need to measure the perimeter of the room being repaired (the length of all walls) without taking into account the width of windows and doors and the level of the walls. And then the length and height of the sections above and below the window sills, as well as above the doors. Now let's move on to the calculations.

We derive the calculation formula

The resulting room perimeter is divided by the width of the selected wallpaper (it can be from 50 centimeters to a meter) and we get the number of solid strips.

And we divide the length of the roll by the height of the room and get the number of pieces that can be cut from one package (when placed at 2.5 m, these are four strips).

After that, we divide the total number of solid strips by their same number obtained from one roll. The result of the arithmetic will be the number of rolls that are needed to cut only whole strips.

In order not to torment the calculator and not to fill your head with extra numbers, you can use a ready-made table (but it is worth considering that, like any online service, it carries some error):

Adjustment for products with a pattern

Of course, when wallpaper is chosen for repairs that do not require adjustment, everything is more or less simple. But what if the choice fell on a wall covering with a large pattern? In this case, you will get 1 whole strip less from the pack (due to the need to adjust the pattern). Therefore, the calculation needs to be corrected.

Calculation example for persistent

There is a room 3 x 4 meters, height 2.50 m; with a doorway, the width of which is 0.8 m, and the height is 2.1 m; and a window, the horizontal of which is 1.2 m, and the vertical is 1.5 m. Wallpaper is selected, 60 cm wide, the roll length of which is 10.5 meters.

Perimeter without taking into account the width of windows and openings: 3+3+4+4-0.8-1.2 = 12 m

Number of solid cuts: 12:0.6 = 20 pieces

With a standard room ceiling level (2.5 m), 4 whole strips will come out of the package (by the way, you need to cut it with a margin, that is, the length of the piece should not be 2.5 meters, but ten centimeters more).

Number of packages for cutting out solid strips: 20:4 = 5 pieces

With a window size of 0.8x1.5 and doors 2.1 m high, scraps from 5 rolls are enough to paste over the space above the functional openings, but for the space under the window sill you will have to buy another one (although you can glue the wall under it with a composite piece). This means that in total you will need 6 plain rolls or 7 packages with a large pattern.

From the size of the room (more on that 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 pattern has to be customized, there will be three stripes.

No alignment of the pattern: the roll is simply cut into the desired number of panels. Usually it is plain wallpaper, wallpaper with an abstract pattern or vertical stripes.

The pattern will have to be aligned horizontally so that adjacent stripes start with the same elements. And here everything will depend on the height of the rapport - the distance through which the pattern repeats (indicated on the label). In the worst case, you will have to throw out almost the entire height of the rapport, so when calculating it, you need to add it to the height of the ceiling.

The pattern is located diagonally, so each canvas is shifted. As a rule, half rapport. In this case, the height of the rapport and the amount of offset must be added to the height of the ceiling: you will find both numbers on the label.

How to calculate the number of wallpapers using tables

This is ideal if the room is square or if the wallpaper does not need to be adjusted. You only need the area of ​​\u200b\u200bthe room and the height of the ceiling.

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

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

How to calculate the number of wallpapers mathematically

If the room has a complex shape, there are bends and niches, it is better to count along the perimeter. To do this, add the lengths of all the walls. Window and door openings less than 60 cm wide are equated to a flat wall, wider ones are excluded from. 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 go back to our example: 14 m / 1.06 m = 13.2. Rounding up - 14 canvases of wide wallpaper. For narrow wallpapers: 14 m / 0.53 m = 26.4. That is 27 bands.

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 with a straight joint, the length of the strip is equal to the sum of the ceiling height and the rapport height (0.6 m). 10 m / (2.75 + 0.6) = 2.9 ≈ 2.
3. If the wallpaper is with a combined joint, the length of the strip is equal to the sum of the ceiling height, the repeat height (0.6 m) and the offset value (0.3 m). 10 m / (2.75 + 0.6 + 0.3) = 2.7 ≈ 2.

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

How to calculate the number of wallpapers using services and applications

The fastest way, if you know the parameters of the room, and the easiest, if you are not friends with mathematics. There are plenty of wallpaper calculators on the web, here are just a few good ones.

• Wallpaper calculator from calc.by. It counts both by area and perimeter, allows you to exclude door and window openings from the calculation. You can also set the width and footage of the roll.
• Wallpaper calculator from calc.ru. Calculates 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 driven in. You can also specify the price per roll to find out the final cost of pasting.

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

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.

It will be problematic to return one or two extra rolls after. But large stores usually go to meet customers. After all, they buy wallpapers in large quantities, and plus or minus one roll does not particularly affect the sale. Customer loyalty is more valuable.

Just in case, check the terms of the return before buying.

Any repairs in the apartment should begin with the preparation of a preliminary estimate to determine the required amount of consumables that will be needed during the finishing work. If the task is to replace the wallpaper in the room, then first of all you need to determine the number of rolls required for pasting it. Correctly performed calculation will allow in the future to avoid unnecessary problems during the repair, as well as save your money.

Today, there are several well-known and affordable ways to calculate the required number of wallpaper rolls:

• along the perimeter of the room and the number of stripes;
• by the total surface area of ​​the walls required for gluing;
• using online calculators.

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

This method involves determining the required number of wallpaper strips required for pasting a particular room. For this:

• the length and width of the room are measured, on the basis of which its total perimeter is determined;
• the width of the window and door opening is measured, which is subtracted from the total perimeter;
• the resulting value is divided by the width of the wallpaper rolls with which it is supposed to paste over the room;
• the calculated value is rounded up to an integer value upwards and represents the required number of bands;
• this value is divided by the number of strips that one roll of wallpaper contains, depending on its length;
• the resulting value is also rounded up to an integer value, which is the required number of wallpaper rolls.

Consider this calculation method using a specific example:

Example. It is required to paste over an ordinary room measuring 7.5 m by 3 m, with a ceiling height of 2.5 m, a window opening of 2.1 m by 1.5 m and a door of 0.9 m by 2 m. Wallpaper 53 cm wide will be used for pasting and 10 m long.

To calculate the required number of wallpaper rolls, you need:

1. Determine the total perimeter of the room: (7.5 + 3) * 2 = 21 m.
2. Determine the total width of the window and door opening: 2.1 + 0.9 = 3 m.
3. Subtract from the total perimeter the total width of the openings: 21-3=18 m.
4. Divide the resulting value by the width of the wallpaper roll: 18 / 0.53 \u003d 33.9 and round the result to an integer value - you get 34 strips required for pasting the room.
5. Calculate the number of wallpaper strips in one roll, for which you need to divide the length of the roll by the height of the stream: 10/2.5=4.
6. Divide the required number of wallpaper strips by the number of strips in one roll: 34/4 = 8.5 and round this figure up to a whole value - it turns out 9.

Thus, for pasting this room, 9 rolls of wallpaper will be required. It should be borne in mind that this method does not take into account the surface of the walls above and below the openings of windows and doors, so it is advisable to purchase an additional roll.
read in a separate review.

Calculation by the area of ​​the pasted surface of the walls

This method is considered more accurate and economical, especially for rooms with a large area. It is based on determining the total surface area of ​​the walls of the room to be wallpapered.

For this:

• the total area of ​​\u200b\u200bthe walls is calculated by measuring the perimeter of the room and multiplying it by the height of the ceiling;
• the total area of ​​window and door openings is determined;
• the resulting value is subtracted from the total area of ​​\u200b\u200bthe walls, resulting in a value equal to the surface area of ​​\u200b\u200ball the walls that need to be wallpapered;
• the area of ​​the wallpaper in one roll is calculated by multiplying the width of the roll by its length;
• in conclusion, the total area of ​​​​walls for pasting is divided by the area of ​​\u200b\u200bwallpaper in one roll;
• the resulting value, rounded up to an integer, will be the required number of rolls for pasting the room.

Using an online calculator

If there is no desire or opportunity to carry out the calculations yourself, you can use a special online calculator. Today, there are many sites on the Internet that allow you to use the services of such an online calculator for free.

To carry out the calculation, you must first measure the following quantities:

• room length;
• room width;
• ceiling height;
• wallpaper roll width;
• wallpaper roll length

The obtained values ​​must be entered in the appropriate fields on the online calculator's web page and the finished result will be obtained.

For example, let's use the online calculator available on the site, using the same initial data as for the first two examples. We enter the available values ​​in the appropriate fields and we get the same result - 9 rolls of wallpaper required for pasting this room.

Determining how much wallpaper is needed for repairs is not at all difficult even for a person who first decided to make it on his own.

Previously, back in Soviet times, many people glued the wallpaper themselves. Today you can hire people who can do everything for you. Your task in this case is only to supply them with money to buy materials and to pay for their work. But, all the same, there are still enthusiasts who, even with a lack of time, try to make repairs with their own hands. And almost any repair is an update of the wallpaper in a room or in the entire apartment. Buying wallpaper today is not difficult. There are a lot of them in stores, any, both cheap and expensive. Here, everyone will count from their own capabilities. But, in order not to overpay for wallpaper and not buy an extra roll (and sometimes even several), you need to be able to calculate (and exactly) how much wallpaper you need for a particular room. Difficult here, in principle, there is nothing. You just need to know certain numbers and a little math. I don't think most of us have this problem.

How to calculate how much wallpaper you need?

So, remember the math, take the necessary measurements and calculate the right amount of wallpaper. The main thing is to calculate correctly, because the wallpaper today is made different in their width. It wasn't before when all rolls were the same and you always knew the exact roll width.

Let's start "dancing" from the standard roll. Its width is 53 centimeters and another indicator - the length is also standard, that is, 10 meters. The second indicator that you need to know for sure is the height of your ceilings. Most of us live in apartments where the ceilings are separated from the floor by 2 and a half meters, that is, it is 2 meters 50 centimeters. It is this height that we will take as the base for our calculations. Thus, these 10 meters of our standard roll will be enough for us to cut 3 strips from it. This is if the pattern on your wallpaper is quite large. If this pattern is small, then most likely you will cut all 4 strips, which, of course, is even better. The same 4 strips can be safely cut if the wallpaper is generally plain, without any pattern. You don't have to adjust these stripes at all.

You will be interested:

Next, you will need to calculate what your room is around the perimeter. We remember the school, and we do the calculation, that is, we simply add up all the sides of your room. The amount that you will see on the calculator as a result of this most complex mathematical operation is divided by the number 0.53. I think it's clear that this is the width of your wallpaper roll in meters. That's right, you will understand how many strips you generally need to glue your entire room. Then we continue the calculation, and divide this figure by another 3. The number 3 is the number of strips that you can cut from the roll if you customize the pattern. That non-integer number (most likely it will be so) that you get when divided by 3, you will need to round it up and only up. It is this number that will indicate to you the number of rolls you need to glue this room. If your wallpaper is simple and without a pattern, then you will not be engaged in fitting, and accordingly, instead of 3, you will already divide by 4.

Custom wallpaper width. How to calculate here?

It is clear that not everyone uses wallpapers of only standard width, that is, exactly 53 cm. Perhaps you liked wallpaper of a completely different width. Well, for example, a little more than a meter, usually it is 1.06 m. Their width, however, is usually the same, that is, the same 10 meters.

You need to count here again as well, that is, again, the same perimeter of your room is divided by the width of the wallpaper roll you like (we have it 1.06), and then we divide again by the number of strips that can be cut from the roll (that is, 3 or 4). Do not forget, again round the figure, so as not to be left at the end of gluing your room without the missing piece of wallpaper.

It is clear that in each room there is a door through which we enter this room, and maybe more than one, if your room is a walk-through. In addition to the door, there are also windows (again, there may be several). The area that is above the door, above and below the window, is usually pasted over from those strips that remain. And you will definitely have such stripes. They can even be adjusted, for sure, and you will succeed. If you buy wallpapers without the need to fit them, that is, they are plain or with a very small pattern, then almost all of them are cut into strips (usually 4 strips from a whole roll). So, you may not have leftovers, and therefore it is quite possible that you will have to buy another roll to glue exactly all these places. Everything in this case will be determined by the number of doors and windows themselves. But, it's always better when the wallpaper remains a little than when you urgently have to run to the store for an extra roll.

How to count? Simple example

You have to "refresh" the room, the length of the walls in which, and their width is 4 and 5 meters, that is, the perimeter of your room will thus be 18 meters. Your ceilings, like many others, are standard, that is, the same 2.5 meters. You liked the standard wallpaper, in its width, that is, it is 0.53 m. Thus, you take a piece of paper and count. You get this: 18m: 0.53m: 3 strips = 11.32. You simply round up these 11.32 and go to the store for 12 rolls.

Here is a helpful video on the subject. Here you will learn how to glue wallpaper correctly. We look.

Now, I hope you will not have problems with the calculation of the number of wallpapers.