How to count wallpaper rolls per room. How to calculate the required number of wallpapers? How to calculate wallpaper using online services

Seven times measure cut once. You can’t argue with folk wisdom, especially when you need to independently calculate the wallpaper for the room.

The pieces left from the panels, and even more so the extra rolls, are practically not suitable for anything (yes, we always leave them “in reserve”, but as a rule we rarely use them). On the other hand, if you buy more wallpaper, you can get into a mess. After all, the shade of the wallpaper sometimes differs from batch to batch.

So the rational owners are faced with the question of how much wallpaper to buy, so that it is enough for pasting, and there are no extra meters left.

Working with the program is more than simple, the calculation formula is intuitive, it is enough to indicate the dimensions of the room and the characteristics of the wallpaper. But, I would like to draw your attention to a few nuances.

How to calculate how much wallpaper you need per room

length, width and perimeter of the room. If you have a simple room configuration, specify its length and width. And if complex, then the perimeter;

wallpaper width. The working width is indicated, because there are still wallpapers that need to be glued with an overlap;

rapport- the basic element of the ornament on the wallpaper canvas.

bias. Shows how much the rapport on the wallpaper is shifted. Usually, this value is indicated on the roll. The desired length of the strip will increase by the same amount.

the height of the room is indicated with a margin of 5 cm. This is necessary to avoid the lack of length of the strip of wallpaper with a difference in heights and a reserve for a beautiful cut.

Please note that windows and doors are not subtracted from the perimeter of the walls, because their location affects the order of wallpapering. If necessary, you can do it yourself. The material was prepared for the site www.site

Wallpaper table - calculation of wallpaper consumption according to the scheme

In addition to the calculator, they use a method - calculating wallpaper according to a table with standard parameters. Of course, the results are approximate and it is better to add an additional roll to the amount obtained.

Table number 1 - calculation of the number of rolls of wallpaper half a meter wide

Roll width half a meter (0.52 cm) and length 10 meters (10.05 m)

Table No. 2 - calculation of the number of rolls 70 cm wide

Roll width 70 cm (0.68 m) and length 10 meters (10.05 m)

Table number 3 - calculation of the number of wallpapers one meter wide

Roll width 1 meter (106 cm) and length 10 meters (10.05 m)

Sometimes the length of the wallpaper can reach 15 meters, so the calculations will have to be adjusted to the available length.

Calculator for calculating wallpaper for a room

Below is a program - an online wallpaper calculator that will help determine the consumption of wallpaper: paper, vinyl, non-woven, textile and fiberglass.

Traditionally, renovating a room is not complete without changing the wallpaper. But on the market of modern finishing materials there are many wallpapers of different types, colors, sizes and other characteristics. How to optimally calculate the required amount of this material?

So, it was decided to change the wallpaper, but what is the best way to calculate the necessary materials so that you don’t overpay too much, and then don’t buy the missing amount (especially since batches of the same wallpaper can differ in color, pattern, texture)? Is there a general calculation principle for all types of wallpaper, or does it need to be calculated differently, depending on which wallpaper will be used?

First you need to decide:

for which room you need to calculate the wallpaper (living room, hallway, kitchen)
what type of wallpaper is planned to be used (paper, non-woven, bamboo, liquid, etc.)
what are the dimensions of the wallpaper (length, width), pattern, texture
will they also wallpaper the ceiling in addition to the walls.

Depending on the room in which it is planned to glue the wallpaper, their type is selected. For example, velor wallpaper can be used in the hall, but in the kitchen they will be impractical and inappropriate; washable coatings are more suitable in the corridor. Not only dimensional, but also qualitative characteristics of the wallpaper canvas can affect the calculations.

The calculation of the number of wallpapers is affected by the following:

dimensions (length, width) of wallpaper
design, pattern, texture, wallpaper type
glued surface area
surface evenness
the presence of doors, windows, ledges, arches, etc. in the room
design solution in the design of the room (sometimes different colors and types of wallpaper are used).

Of course, the rooms are different, roll wallpaper is also of different lengths. There is a general formula that works for any type of wallpaper:

R: V: 3(or 4 - depending on whether the pattern needs to be adjusted or not).

Where P is the perimeter of the room, B is the width of the roll.

The figure obtained by this formula is rounded up to a larger number. Of course, for fans of more accurate calculations, more accurate measurements and consideration of other parameters will be needed.

How to calculate the required number of rolls.

In order to correctly calculate, it is not necessary to specially invite builders, all calculations can be done independently. The main thing is to accurately measure everything. Therefore, it is worth arming yourself with a construction tape measure and measuring the perimeter of the room in which repairs are planned (this is the length of all walls minus the size of windows and doors).

It happens that in the room they do not plan to wallpaper the entire surface (for example, the calculation is for the kitchen, and the wallpaper will be glued along with the tiles), then you need to subtract the area that the tiled apron will occupy from the area of the entire room.

It is important to consider: if a wallpaper with a pattern is chosen, then their consumption increases by 1.5 times, since the pattern will need to be adjusted.

For the correct calculation of wallpaper, it is important to know the exact dimensions of the room, the number and area of window and door openings.

2AH + 2BH=S

S is the desired total area of the walls of the room,
H is the height of the room,
A is the length of the room
B is the width of the room.
If the length of the walls is not the same, and their number is not 4, but, for example, 5, then you do not need to multiply by two, and the formula can be as follows:

S = AH + BH + CH + DH. And here: A is the length of the first wall, B is the second, C is the third, D is the fourth.

This formula is suitable if the height of the walls is the same, but their lengths vary. If the height is different (for example, there may be a podium, steps), then you need to specify it differently.

It is important to consider:

For the calculations to be accurate, you need to measure not by eye, steps, elbows (especially since steps and elbows can be different for people), but with a ruler, a tape measure.
It is better to record the results of measurements in centimeters and as accurately as possible, do not round.

Calculation methods

1 way (on old wallpaper).

If there are old wallpapers left in the room and they are the same width as the new ones, and you don’t need to combine the pattern repeat, then you can simply measure the height of the wall, find out how long the roll is in the new wallpaper (rolls of 18, 12, 10, 7 meters are now produced) and count the number of strips of old wallpaper on the walls. By dividing the length of the roll by the height of the wall, we find out how many panels will turn out in one roll. Well, here it is already easy to calculate the required number of rolls.

Let's say the height of the walls is 2.5 m, the roll is 10 m, the strips of old wallpaper are 20 pcs.
10: 2.5 = 4 (number of panels in one roll).
If there are 20 segments in total, then dividing by 4, we get 5 rolls necessary for pasting the entire room.

If the number turned out to be fractional, then it is usually rounded up.

Method 2 (calculation "from scratch").

If there is no longer wallpaper in the room, the walls are cleared, then in the calculations you can proceed as follows:

Find the area of each wall. Pre-measure its length, width and multiply.
If there are window or door openings in the wall, calculate and subtract their area from the total area of the wall.
If any decor is planned, and it will occupy a space where the wallpaper will not be needed, we also subtract the area of \u200b\u200bthis surface from the total wall area.
We summarize the results obtained for all walls.
Knowing the length and width of the wallpaper in a roll, we can calculate the area of the wallpaper.
Dividing the area of the room by the area of \u200b\u200bthe roll, we find out the required number of rolls.

The same wallpaper, if released at different times, may differ in shades.

Calculation for wallpaper with a pattern

If the pattern is pale or not very noticeable, you can act according to the general scheme, but it is bright and noticeable, you will have to take into account the pitch of the ornament. Usually the pitch of the ornament is 52-53 cm.

Calculation plan:

We measure the height of the wall.
We divide the ornament by a step.
We round the value up and get the rapport number.
We multiply the resulting rapport number by its value and as a result we get the length of the panel cut off from the roll.
To find out the number of waste, you need to subtract the height of the wall from the resulting length of the panel.
Further, dividing the length of the roll by the length of one panel, we obtain a coefficient that will help determine the number of rolls required.
The resulting coefficient is multiplied by the difference, which was obtained in paragraph 5.
The number obtained in paragraph 7 is subtracted from the total length of the roll.
If the total area of \u200b\u200bthe room that is planned to be pasted over is divided by the number from clause 8, the required number of rolls will be obtained.

Let's say:

length of a roll of wallpaper to be pasted, 10m,
ornament pitch - 0.53 m,
wall height 2.8 m,
the total area of the room is 43 sq.m.

The calculations will be as follows:

2.8 m
2,8: 0,53 = 5,28
Round up to 6.
6X 0.53 = 3.18.
3.18 - 2.8 \u003d 0.38m (or 38 cm).
10: 3.18 = 3.14 (ratio).
3.14 x 0.38 = 1.19
10 - 1.19 \u003d 8.81m.
43: 8.81 = 4.8 (i.e. optimally 5 rolls will be required per room in this example).

Rolls come in different sizes, but these calculation methods are suitable for any wallpaper: you just need to substitute those numbers that reflect the size of the selected wallpaper.

Calculation of the required amount of liquid wallpaper.

If liquid wallpaper is chosen for finishing the room, then the specifics of the calculations change slightly, but you still have to calculate the total area of \u200b\u200bthe working surface.

To determine the amount of liquid wallpaper, you need to divide the area of \u200b\u200bthe walls (how to find it out, explained above) by the consumption of wallpaper in one package. Usually, this consumption is indicated on each package of liquid wallpaper, but on average it is 3-5 sq.m. surfaces.

For example, if the working surface area in the room is 30 sq. m., then with an average consumption of liquid wallpaper in one package of 3 sq.m, 10 packages of such wallpaper will be required.

Depending on the experience with liquid wallpaper and the condition of the walls, it is recommended to take 1-3 bags in stock.

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

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

Preliminary measurements of the room

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

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

First, measure the length and width of the room, as well as the height of the ceiling. You should not take into account the level of the walls, and the dimensions of windows and doors must be measured separately - these data will be useful in the calculations. If the design provides for a wide ceiling baguette, a box or suspended ceilings, their width should be taken away.

Measure carefully:

protrusions;
niches;
space above doors and windows.

Advice! If the room has an uneven ceiling, it is recommended to measure the wall in the highest place.

Calculation of wallpaper around the perimeter of the room

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

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

Gone are the days when all wallpapers had a standard width. Modern manufacturers offer a decorative coating of the following width:

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

Important! If the design of the room provides for canvases of several types, first consider the gluing scheme, and only then calculate the quantity.

Let's start with the calculations. Necessary:

Attention! In order not to make a mistake down in the calculations, the numbers should be rounded up to a whole value, and up.

Calculation by room area

The above method has one drawback - the presence of windows and doors in the room is not taken into account, so you will still have extra materials. An alternative way is to calculate by the area of \u200b\u200bthe walls. For this you need:

To calculate the total area - multiply the length and height of the wall.
Calculate the area to be covered. First you need to calculate the area of window and door openings (multiplying their height and width). Further, from the total area of \u200b\u200bthe room (calculated in paragraph 1), subtract the total area of \u200b\u200bwindows and doors.
Count the number of rolls. Standard wallpaper 0.53x10 m can cover 5 square meters.
The final calculation of the number of rolls is the pasting area (number from point 2) divided by the area that can be pasted with one roll (for example, as in point 3).

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

How to check your calculations

There are ready-made tables in which the number of standard rolls for rooms with typical dimensions has already been calculated. If you counted along the perimeter, check the resulting value:

take a look at the series. The numbers on all rolls must be the same, otherwise there may be a difference in color and brightness;
the material may be defective, so it is worth deploying and checking all rolls after purchase;
even in wallpaper with a small pattern there may be a report that is invisible at first glance;
you can reduce material consumption if you cut strips not from one roll, but from several at the same time;
walls above the door and window openings are recommended to be glued with leftovers and trimmings, but the image on the sides must match;
glue the inner corners, you need to start from a new piece;
glue the outer corner, overlap the wallpaper or just wrap the corner;
sometimes, to align the corner, you need a thin strip, the length of which is a whole sheet, take this fact into account when calculating the consumption of wallpaper.

Required values

In order for the gluing process to go smoothly and without "extra nerves", as mentioned earlier, everything must be measured and calculated in advance. Otherwise, you may end up with a “surprise” in the form of a bare spot on the wall with a missing piece of wallpaper, or, conversely, too many rolls will remain.

First of all, for calculations, you will need such quantities as the length and height of each of the walls to be glued in the future.

For example, you can take an ordinary room of standard sizes, for example, it has the following footage: the height of the walls is 2.5 m, the width of the room is 3 m, and the length is 5 m.

The first thing to do is, armed with an ordinary tape measure, find out the length of each of the walls. Then we add the known values on paper: (3 + 5) x2 \u003d 16 m - this is the perimeter of the measured room.

Next, you need to measure the width of the wallpaper (usually, these parameters are written on each roll, the standard width is 0.5 m). The resulting number of the perimeter of the room is divided by the width of the wallpaper, that is, 16 m: 0.5 m = 32. This number shows how many strips of wallpaper will be needed for the room.

The next value that will be needed in the calculation is how many strips will be obtained from each roll in order to find out their number in the future. A standard roll has a footage of 10, 25 or 50 meters, but if a non-standard one was purchased, where fractional values are, then for ease of calculation we round up to an even number. We divide this length by the known height of the room wall. It turns out 10 m: 2.5 m = 4 - so many stripes will be obtained from one roll of wallpaper.

It remains the case for small things - to find out the exact number of rolls. To do this, you need to divide the number of required strips for the entire room by the number of strips in one roll. 32: 4 = 8 - so many rolls will be needed to completely paste over the selected room.

Masters, in turn, advise to still purchase one roll of wallpaper more, since there is always a chance of making a mistake or accidentally ruining several strips, and in order not to run after the next roll of the desired wallpaper (which may no longer be in the store) , it is better to always have a little in reserve. It will also always be possible to replace the damaged fragment with children or pets.

Instrument preparation

A very important process before directly pasting the walls with wallpaper is careful preparation, since this process will require a certain number of auxiliary tools and improvised means.

The very first item that you can’t do without is an ordinary pencil, they will need to mark the pending length on the wallpaper. It can be both special construction and ordinary.

Of course, you can’t do without a long ruler or construction tape measure. With their help, the parameters of the room (length, height, width) will be measured, and the wallpaper roll will be lined. It will be difficult and long to take measurements of the room space with a ruler, therefore it is better to use a tape measure for these purposes, and with its help, in turn, it is difficult to draw straight lines on a sheet of wallpaper. In this regard, it is better to take both.

To cut the canvases into separate sheets, a stationery knife or sharp scissors will come in handy, but I advise the craftsmen to use the first option, since it is easy to make cuts or cuts for sockets and wiring with it. It is also easy for them to give injections when they need to release air bubbles, but here it is wiser to use a needle, it will turn out more accurately and imperceptibly. In turn, scissors will come in handy for cutting out some “curly” parts, where clarity and smoothness of lines are required.

Of course, you will need a screwdriver to remove the protective protruding box from the switches or any other wall mounts.

Since the walls and corners in the house are not always perfectly even, and there is a pattern on the wallpaper, the building level will come in handy. With it, it will be easy to glue the strip so that both the pattern and the corners do not “curve”.

You will need two containers, one for water, and glue will be kneaded in the second. Water is needed to wipe off accidentally falling drops of glue in the wrong place with a cloth, if you quickly wipe it off, then there will be no traces left.

If we talk about a rag, then it must be clean and soft (wet wallpaper is easy to wrinkle and damage). It is very important that in the process of wiping off excess glue, it is damp, but not wet, otherwise the wallpaper may become saturated with moisture and simply slide down the wall.

To mix the adhesive solution with high quality, you will need a construction mixer or an ordinary wooden stick, which will have to mix the ingredients for a long time and with high quality. Masters advise pouring glue not all at once, but in parts, so it will turn out to make it more uniform and without lumps.

In order for the glue to be applied evenly and quickly, it is best to use a roller or a wide brush with medium bristles. As for the roller, then its pile should be small.

A very convenient device for gluing is a paint bath. It has a recess for solutions and a ribbed surface with a bevel (so that the excess merges back). It is good to pour glue into it in small amounts, dip the roller there, and remove the excess by scrolling it on the ribbed side. It is very important that its size matches the width of the roller, otherwise there will be no sense from the bath.

A wallpaper spatula will be a good helper in getting rid of trapped air under the glued wallpaper. The main thing is that it should be either rubberized or plastic, otherwise the metal may crumple or tear a still wet, not dried strip. It “expels” not only air bubbles, but also excess glue, which must be immediately wiped off and removed.

For places such as joints between strips, there is a special roller. It is made of rubber or silicone and has the shape of a small round barrel. It is very convenient for them to push through the joints without causing damage or deformation to the wallpaper. There is also a special roller for angular contact of the surface with the wallpaper - these are places near the ceiling, near the floor or in the corners of the room. Due to their flat shape, it is easy for them to push through all the corners so that the strip holds well.

Of course, do not forget about electrical tape. With its help, you need to glue all the "bare" wires, which will later serve to install the outlet and so on.

Of course, the above list can be supplemented with all sorts of newfangled devices, but this is enough for high-quality gluing of wallpaper.

Room area measurement

As mentioned earlier, without an accurate measurement of all three main parameters of the room, it will not be possible to calculate the exact number of wallpaper rolls. This is especially true of the case when you need to paste over more than one room in an apartment or house, but several.

To make it easier to visualize, you will need to draw a general schematic plan of the room. To do this, you will need a pencil, a ruler and a plain sheet of paper. You will also need a tape measure, with which space measurements will be made.

Having schematically marked the walls and the location of the windows on paper, it is necessary to sign such quantities as the height of the walls, the width and length of the room itself. Then specify the window parameters to subtract them from the total footage, since they do not need to be pasted over.

Next, we find out the area of \u200b\u200beach wall and add it together to find out the total number. To do this, we multiply the height by the width. Let's say that this space has a height of 2.5 m, a width of 3 m, and a length of 4 m.

We find out the area of the first wall: 2.5x3 \u003d 7.5 square meters. m. Next, we multiply this number by 2, since there are two such walls - they are opposite. 7.5 sq. m x 2 = 15 sq. m - a total of 2 walls. We do the same with the other two. (2.5 m x 4) x 2 = 20 sq. m. We add the obtained values \u200b\u200b- 10 +15 \u003d 25 square meters. m - the area of \u200b\u200bthe entire surface of the walls in the room.

Do not forget about the surface area of the window, which must be subtracted. First, it must be calculated in a known way. Let's take the dimensions of an ordinary window - width 1.35 m, height 1.45 m. 1.35 x 1.45 \u003d 1.96 square meters. m. The result obtained is subtracted from the total surface area of the walls of the room - 25 -1.96 \u003d 23.04 square meters. m - the area of \u200b\u200bthe pasted surface of the walls.

Every room has an entrance door or passage, which is also not a surface, it does not need to be wallpapered. In this regard, the surface area of the door and the entrance space itself must be subtracted from the total wall area obtained above. An ordinary door with a transom has a height of 2.5 meters and a width of 0.8 m. 2.5 x 0.8 \u003d 2 square meters. m (door area with a gap from it to the ceiling).

Subtract the calculated area from the total - 23.04 - 2 = 21.04 sq. m.

From the result obtained, using simple mathematical calculations, you can find out the number of required wallpaper rolls for the room, knowing the coverage area of one roll.

Here, the length is also multiplied by the width, and then the total area of the room is divided by the area of \u200b\u200bone wallpaper roll.

Non-standard surfaces

There are also rooms that have a non-standard layout, but the calculation must still be carried out. To be 100% accurate, even in a room of standard sizes and parameters, the walls are not always even and they must first be leveled, otherwise the ornament or pattern on the wallpaper will be difficult to join over the entire surface of the walls.

Unusual surfaces include walls with rounded corners, or when the wall itself has the shape of a semicircle. There are rooms where the walls are rounded towards the ceiling and have a domed top. There are also ledges or partitions that divide the space into zones and so on.

To determine the number of wallpaper rolls, you still have to calculate the area in this case. Masters advise to “cut” the space into convenient shapes (square, rectangle). To do this, the width of the wall and its height at the highest point are taken and mentally connected into a rectangle. Rounded triangles will remain at the corners, which are also divided into squares. Later, all the sums of the areas are added up, and the total area is obtained.

But many "experienced" upholsterers say that it is not necessary to calculate so thoroughly.

In the process of gluing, you just need to cut off the excess along the contour of the bend with a regular knife or a stationery knife (it will turn out more accurately with it).

If the wall has the parameters of an ordinary rectangle, but a convex shape in the form of a Russian letter c, then its width is measured using a tape measure, which must be pressed tightly against the surface. The height will be normal, without any problems and any changes. And then the area is calculated according to the well-known formula.

In the case when there are convex parts or certain structures on the wall (for example, a pipe from an exhaust hood, which was covered with rectangular sheets of drywall or PVC), then its area must also be calculated and added to the total surface. It’s good when it has a clear angular shape, like a square or rectangle, but if there are rounded parts, then it’s also better to calculate them, like “correct” figures, and then remove a small excess with a knife.

Roll sizes

After all the necessary parameters of the room are calculated, you should proceed to the calculation of the wallpaper. Before that, you need to know the width and length of the selected roll.

To date, there are several standards for the metric parameters of wallpaper, as manufacturers are both foreign and local, that is, Russian.

The width of the roll has many variations, but today there are three main sizes that most manufacturers try to adhere to:

53 cm- the most commonly used size, so it is found in foreign and local wallpaper brands. Since it is very convenient for gluing, it is preferred more than others.

70 cm- the second most frequent width. This size is more popular with European manufacturers. As everyone knows, people try to buy imported wallpapers, because they, in turn, are better in some respects, and therefore the demand for such a width is very high.
106 cm- as the masters say, the wider the wallpaper, the faster the process can be completed, but this is not always the case. With this width, “massive” wallpaper rolls are most often made.

For the Russian market, meter and half-meter wide wallpapers are preferred.

As for such a parameter as length, then everything is a little simpler.

In this case, there are also three main sizes:

The most basic length is 10.5 meters. It is followed by most wallpaper manufacturers. It is enough for 3 full strips on the wall.
For wallpaper rolls with a width of 53 centimeters, a length of 15 meters is characteristic. As a rule, these are wallpapers made of vinyl or non-woven.
For heavy wallpaper with a meter width, made of fiberglass or the same non-woven fabric, make a footage of 25 meters.

A wallpaper roll has such a thing as a coverage area, which varies from its length.

When a standard length of 1050 cm is made, and a width of 53 cm, then according to the formula (S \u003d a * b), 53,000 square meters are obtained. cm (5.3 sq. m). With a similar width, and a length of 1500 cm, the area will be equal to almost 80,000 square meters. cm (8 sqm). If we take a length of 2500 cm and a width of 106 cm, then here it turns out - 25 square meters. m. - 25000 sq. cm.

Rapport and drawing parameters

It may seem that wallpapering comes down to only calculating the footage, the number of strips, and then the rolls. Basically, this is true, but it only applies to wallpapers that do not have a pattern or complex ornament. In this case, you will need to adjust the wallpaper to make it look like a monolithic piece.

Before choosing wallpaper with a pattern, you need to determine what rapport is. Rapport is the repetition of a pattern or pattern on a wallpaper roll. In turn, it is divided into 2 types. It happens side (the pattern goes along the width of the sheet) and high-altitude (the ornament is repeated in height). This arrangement directly depends on the parameters of the canvas and the size and type of the ornament itself.

When gluing such wallpaper, there is one main need - to align the wallpaper strips according to the pattern, which affects the final result. The fact is that for such wallpapers there is a slightly different calculation of rolls.

To do everything right, you will need the symbols located on each such wallpaper:

If the designation is drawn on the label - an arrow along with 0, then this indicates that this wallpaper roll can be glued and joined with stripes without fear of violating the integrity of the ornament, there is not much difference.

When arrows are shown pointing at each other, then the wallpaper strips must be clearly joined at the edges. But, if the counter-pointing arrows are offset (one is higher than the other), then you need to glue with an offset up or down (in this case, a special calculation of the canvas will be made over the entire surface of the wall). As a rule, numbers are indicated on the packaging of such rolled sheets. For example - 55 \ 23, the first number indicates (in centimeters) the size of the ornament or pattern, and the second - how much (also in centimeters) you need to shift one strip relative to the other.
In the case when the arrows point to each other from the bottom up, this means that during the arrangement of the sheets of wallpaper, there should be an opposite docking.

Do not throw away short stripes with a pattern.

They can be used for the space under the window, between the battery and the window sill, or for the wall gap above the door.

From the above, it is clear that the calculation of material with rapport will be different. First, you need to find out the perimeter of the wall, then divide it by the width of the wallpaper and get the number of stripes you need. Then, you need to calculate how many offsets will need to be done on one strip, the larger the pattern, the more wallpaper will be needed. Knowing this information, we find the number of rolls.

Specify the required dimensions in meters.

Room dimensions:

Y– The length of the first side of the room to be wallpapered.

X- The length of the second side of the room for gluing.

H- Room height.

P– Perimeter (the sum of the lengths of all sides). To calculate the value of the perimeter of a room, add the length of all its walls.

D– Distance from the beginning of gluing to the first corner. Meaning D measured from the beginning of gluing to the first corner (clockwise), it cannot be equal to or greater than the length of the wall.

To carry out the calculation, you can set either the length of the walls of the room or its perimeter (in the second case, the option to start gluing will not be available).

If the room has a rectangular or square shape, enter the parameters Y, X,H. For rooms of irregular shape with ledges and niches, it is possible to calculate by specifying the values H and P.

Window:

If the room has a window opening, press "Add window" and enter its dimensions: length WX and height WY.

WZ- The distance from the beginning of wallpapering determines the location of the window in the room. Enter the distance from the starting point of pasting to the window.

The number of added windows is not limited.

Doors:

In order for the program to take into account the presence of a doorway in the calculation, you must click "Add doors" and enter their lengths DX and height DY.

DZ– Distance from the beginning of wallpapering to the doors.

It is possible to add multiple doors.

Wallpaper:

L– The length of a roll of wallpaper depends on the type and manufacturer. Standard value L 10.05 m. However, non-woven wallpaper for painting can be produced in rolls of 30 and 50 meters.

W– The width of the roll is determined by the characteristics of the production line and can be 0.53 m (standard), 0.7 m and 1.06 m.

R- Repeating a drawing, or the so-called. rapport is the distance over which the same pattern repeats.

Z- Margin for leveling, the amount of allowance at the floor and ceiling, which, after gluing, must be cut off with a sharp knife to fit the ruler or rule (0.05-0.15 m).

F- Move picture. Check this box if you want to calculate based on the wallpaper repeat offset for matching.

If you want to print the visualization, check the box " Black and white drawing”, so you get a drawing that is close to the requirements of GOST and save color ink or toner when printing.

Important! If incorrect parameters are entered, to continue the calculation, you will be prompted to pay attention to the corresponding parameter and make changes.

The calculator will help you calculate the total area of the walls of the room (in m²), calculate the consumption of wallpaper, taking into account windows and doors. You will know the area of one roll of wallpaper, the length of the sheets required for pasting a room of a specified height, taking into account trimming allowances, as well as the number of whole sheets of wallpaper contained in the roll. What will be the remainder of each roll and how many rolls (pieces) of a given length are needed to paste over the room. The calculator will calculate how much wallpaper is needed for the room and how many rolls are needed, taking into account the presence of window and door openings. The total balance of all wallpapers will also be calculated.

Such data allows you to buy the right amount of wallpaper for the room, taking into account the nuances and sticking the room with your own hands or hiring professionals. It is advisable to have a stock of one roll in excess of the calculated quantity, this will save time and money in the future, in case of improper cutting or damage.