How to calculate the square meters of a room for wallpaper. How much wallpaper is needed per room: calculation of rolls and choice of wallpaper type

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

The most serious problem in this work is to make the correct calculation of the number of wallpapers per room, so that you do not have to buy more if there is a shortage, because it is not always possible to find exactly the same ones. The reverse option, when too many rolls are bought, is also unlikely to please anyone - this is money thrown to the wind, you simply have nowhere to use the remaining two or three rolls.

In order to calculate everything correctly, it is necessary to measure the perimeter that the walls of the room form. For those who no longer remember from school, we recall: the perimeter of a rectangle is the sum of the lengths of all its sides. For example, the walls have a length - two of 6 m and two of 4 m.

2×6+2×4=12+8=20 m is the length of the perimeter of the room. Naturally, you will get a different number.

Then we measure the height of the walls. In standard apartments, it is usually 2.5 m. Since standard rolls are 10 m long, we divide 10 by the height of the walls - 2.5 m.

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

Of course, if the height of your walls is different, then the number of stripes may also be different. For example, with a wall height of 3 m, you will get only 3 strips and will have 1 m left, which can be used over door or window openings.

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

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

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

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

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

By area

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

For example, let's take the same numbers as in the previous version: the width of the walls is 6 and 4 m, the height is 2.5 m.

2 × (6 + 4) × 2.5 = 50 m 2. This is the area that needs to be covered with wallpaper. At the very beginning, we multiplied by 2, because we have two such walls.

Now we find out the surface area of ​​​​one roll, for this we multiply its width by its length:

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

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

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

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

With an image

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

To calculate, you will need a measuring tape, a notepad and a calculator.

Room measurements

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

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

How to calculate the wallpaper in the room around the perimeter

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

Perimeter = (length of one wall + length of adjacent wall) * 2

Calculating the Estimated Web Height

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

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

Calculation of the number of strips for pasting a room

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

Then we calculate the number of strips required to cover the entire room:

Number of stripes per room = perimeter / width of wallpaper strip

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

Calculation of the number of strips from one roll

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

Number of strips from 1 roll = roll length / calculated strip height

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

Calculation of the number of rolls per room

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

Number of rolls = number of strips per room / number of strips from 1 roll

Important! All received numbers are rounded up, because rolls are ordered only whole.

How to calculate wallpaper for a square room

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

Wall Area Calculation

To calculate the area, use the following formula:

Total area = wall length * wall height

Now we calculate the area of ​​​​the walls that will be covered with wallpaper. To do this, you first need to calculate the area of ​​window and door openings, and then use the formula:

Wallpapering area = total area - area of ​​windows and doors

Calculation of the number of rolls

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

To calculate the number of rolls for the entire room, you need:

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

Important! Round the resulting number up.

If your wallpaper is patterned

If there is a large pattern on the wallpaper, find out its report, and then calculate the ceiling height multiple of it and carry out calculations with it.

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

So recalculate everything that you measured, only as if your walls were 2.8 m high, and not 2.6.

Hints

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

How to use tables?

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

Area tables:

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

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

Tables around the perimeter:

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

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

Height	Room perimeter, m
	6	8	10	12	14	16	18	20	22	24	26	28	30
up to 2.4m	3	4	5	6	7	8	9	10	11	12	13	14	15
2.4-3.5m	4	6	7	8	10	11	12	14	15	16	18	19	20

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

Height	Room perimeter, m
	6	8	10	12	14	16	18	20	22	24	26	28	30
up to 2.4m	2	3	4	4	5	6	7	7	8	9	10	10	10
2.4-3.5m	3	4	5	6	7	8	9	9	10	11	12	13	14

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

There are many preparatory steps ahead. This is the choice of a suitable design, and the preparation of the wall, as well as the calculation of the number of wallpapers per room. In this article, we will analyze all the necessary nuances of such a task.

General provisions

Let's devote a few words to the choice of such. Why are they most often used for interior design? The reason for this is that they have many advantages.

Advantages

• Huge range of different colors and ornaments, as well as materials used to create products.

• Flexible price. There are both very cheap models and incredibly expensive ones. To a greater extent, this is influenced by the presence of expensive raw materials in the structure.

• Easy to apply by hand. Wallpapering does not require special skills and is easy to implement on your own.

• Protecting the surface of the walls and masking their minor flaws.
• Ease of preparing a preliminary estimate. Calculating the number of wallpaper rolls per room is much easier than, for example, calculating the required volume of paints and varnishes.

The need for budgeting

There are three most important reasons why you need to calculate wallpaper rolls per room:

1. In order not to be without at the very peak of repair work. Agree, running while the glue dries headlong in search of a missing roll is not very fun. Moreover, a similar shade can be generally problematic to find.
2. In order not to buy extra products. If we are talking about cheap paper samples, then it’s okay, you can collect with a margin, in case restoration is necessary. But if it is natural or textile wallpaper, then an extra roll will significantly hit your family budget.

1. And the last reason is that you simply need to know how much you need to go to the store with.

We believe

You will need the following things to carry out the calculations:

Required Tools

• Roulette for carrying out the necessary measurements;

• Pencil and a blank sheet of paper for making notes;

• Calculator to quickly cope with the calculations.

We take measurements

The calculation of wallpaper consumption per room will not be correct without exact linear dimensions:

• First, measure the perimeter of the room. Let in our case it will be 18 meters.

• Then the height of the ceilings. Usually it is two and a half meters. If you use products with a pattern, then to fit it you need to add another thirty centimeters.

Tip: it is also recommended to immediately take into account some margin that compensates for the unevenness of the walls, and add another five centimeters. Since it is much easier to cut off the protruding edge than to try to close up a translucent wall with segments.

• You will also need the parameters of doors and windows. After all, they do not need to be glued, so why buy extra material? For example, let's say that the result is eight square meters.

• The width of the classic wallpaper is 53 centimeters, and the length is 10 meters and 5 centimeters.

Tip: if you plan to use wallpaper for painting, then pay attention to the marking of the rolls. Since they usually differ significantly in size from standard products, and this must be taken into account in the calculations.

Formula

Instruction:

1. We multiply the perimeter (P) by the height (H), taking into account the required margin: 18 × 2.85 = 51.3 m 2. This is the total area of ​​\u200b\u200bthe walls (S o).
2. But in the room there are door and window openings (S p), which we measured in advance, therefore 51.3-8 = 43.3 m 2, which will be the total area (S and).
3. We find out the surface of the roll by multiplying its length (h 1) by the width (h 2) 10.05 × 0.53 = 5.33 m 2 (S p).
4. We divide the required coverage area by the area of ​​​​one roll and get: 48.3 / 5.33 = 9 units of rolls are necessary for the complete finishing of the room in question.

The single formula for calculating wallpaper for a room will look like this: (P × h-S p) / (h 1 × h 2). You just have to substitute the data that you will receive after multiplying all the necessary dimensions: P is the perimeter of the room, H is the height of the ceilings, adjusted for cutting, S p is the area of ​​\u200b\u200ball openings in the room, h 1 is the length of one roll and h 2 is its width.

If you are going to combine different wallpaper models, then simply mark the walls and, in accordance with it, measure the individual parameters for each type of finish.

Tip: in case of difficulties in making calculations, it is recommended to use one of the online calculators. They will only require you to enter the parameters of your room.

Output

The number of wallpaper rolls needed should be known even before going to the store. This way, you will be able to plan your repair estimate much more accurately. To do this, you will need the linear dimensions of the room and the parameters of the products used.

The video in this article will introduce you to additional materials.

Do your calculations carefully.

The process of wallpapering is not as simple as it seems at first glance. In order to qualitatively and beautifully paste over a room with rolled wallpaper, it is necessary to make the correct measurements. Based on them, it is already easier to make accurate calculations of the required amount 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.

The masters, in turn, advise to still purchase one more roll of wallpaper, 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 typical. 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.

The range of finishing materials is constantly updated with new developments based on the most advanced achievements of modern technologies. Accordingly, the fashion for the design of residential premises in one style or another fluctuates. However, despite all this, wallpapering the walls is still one of the most popular types of decoration, and is not going to “give up its positions” yet.

The paper can act as a substrate for other types of wallpaper, such as those with a vinyl or textile outer finish.

• Instead of paper in the production of wallpaper is increasingly used interlining. This material - the table is also environmentally friendly, as it is made from the same cellulose natural fibers, but using a completely different processing technology.

The result is a non-woven fabric that compares favorably with paper in resistance to soaking and higher strength characteristics.

As a result, non-woven wallpapers are the most convenient for self-pasting - even under the influence of a moist adhesive environment, they do not lose their “geometry” and do not spread. That is why interlining is increasingly being used as the base for other types of wallpaper.

Non-woven fabric is also used in its “pure form” - paint also fits well on it, embossing is performed. Perhaps the variety of patterns and the richness of shades are not as high as those of paper wallpapers, but still the range is wide, and there is plenty to choose from.

There is one more important nuance - interlining, as can be seen in the illustration, has a translucent structure. Sometimes the effect of "breakthrough" through the pasted wallpaper of the color of the wall is possible, especially if light shades of design are chosen. This leaves a certain imprint on the need for more thorough preparation of the surface for gluing with its desired monophonic. However, sometimes this phenomenon is even used for “useful purposes” - a certain toning is given to the wall in the right areas in advance, which will shine through the glued finish - as conceived by the designer.

So, non-woven wallpaper is practically in no way inferior to paper wallpaper, in many respects it surpasses them. The only conditional drawback is the higher cost of such a finishing material.

• They have the highest indicators of surface resistance to moisture and abrasive effects, to fading under the influence of ultraviolet rays. They are perfect for rooms where the features of its use require frequent maintenance of the surface of the walls (kitchen, hallway), or in which a high level of humidity is constantly maintained.

To be absolutely precise, only the outer layer is vinyl (polyvinyl chloride) for such wallpapers. The inner substrate, which is responsible for gluing the canvases to the wall, is either paper or interlining.

The outer polymeric coating (PVC) has good hydrophobic properties and lends itself well to applying a relief embossed pattern. Special indelible paints of the brightest shades perfectly fit on it, which are not afraid, among other things, of abrasive effects, and the range of vinyl wallpapers is extremely wide.

The disadvantage of vinyl wallpaper is insufficient vapor permeability, that is, it is difficult for walls covered with such a finish to “breathe”, which can spoil the microclimate in the room. Therefore, such wallpaper is not recommended for children's rooms, for bedrooms. People with a sensitive sense of smell may be annoyed by the slight characteristic "aroma" of PVC, which can linger for quite some time.

Another "minus" is the high density and mass of such canvases, and only specially designed for PVC wallpaper should be used for decoration. Dealing with vinyl wallpaper without having the appropriate experience is much more difficult than with paper, and even more so with non-woven.

On sale you can find other types of wallpaper for walls, made from materials that are very non-standard in the usual way. So, textile trellises are gaining popularity (by the way, they were once the “progenitors” of the milestones of modern types of wallpaper), fiberglass, metallized, cork, bamboo, coconut fibers and some others. But since this publication is still aimed more at people who take up self-repair for the first time, we will not dwell on these “exotic” options. Taking on the gluing of such an unusual finish, without experience, is a deliberately losing event, which will almost certainly end in failure with the loss of considerable funds.

How to approach the problem of choosing the most optimal wallpaper? Of course, they, as decorative finishing materials, first of all, are subject to the requirements of external design. In this publication, there is no point in dwelling on this aspect - we have somewhat different goals, especially since a lot of space has already been devoted to such issues on the pages of the portal.

What rules are followed when choosing wallpaper by color and pattern?

It is clear that the decisive argument has always been and remains the preference of homeowners. However, you should heed some recommendations. So, for example, there are certain canons. Moreover, they often resort to complex.

In this case, we are more concerned about the performance of the finishing material.

• For rooms that are constantly flooded with street light, you should choose wallpaper that has increased resistance to fading, otherwise you will have to update the finish too often. And the more likely it is that sunlight hits the walls, the higher the stability indicator should be.
• It has already been mentioned that heavy vinyl wallpapers are undesirable for residential premises, no matter how attractive they may seem in design. Here, when choosing, the emphasis should still be on the side of environmental cleanliness and the ability of the material to maintain an optimal balance of temperature and humidity in the room, without the likelihood of condensation on the walls. At the same time, the wallpaper in the bedrooms should not attract dust, otherwise the manifestation of allergic reactions is not excluded.
• For the kitchen, vinyl wallpaper will be just right - the inevitable fumes and their settling on the walls require private cleaning. And PVC in this case is even especially good because moisture is absorbed into its surface very weakly - indelible stains can be avoided.
• For bathrooms, the best choice would be a material with pronounced hydrophobic properties - high-quality vinyl wallpaper on non-woven base is suitable.

• For narrow or cramped rooms with increased traffic intensity (, vestibule, etc.), the qualities of wear resistance, that is, resistance to external abrasive influences, are important first of all.

It is necessary to ask the seller in the store about all the qualities of the purchased wallpaper. But relying only on such advice is not entirely reasonable, and you yourself need to be able to identify the necessary information by studying the factory packaging of the product.

What can the wallpaper packaging label tell about?

Each roll of wallpaper is accompanied by a product label, which contains a lot of useful information for the buyer - you just need to be able to read it correctly.

Non-woven wallpaper

• First of all, this is the article of a specific type (model) of wallpaper (pos. 1). It happens that there are wallpapers that are very close in their design, and when releasing the packaged goods, it is not surprising to make a mistake and get a roll that, in fact, will differ from all the others in its pattern.
• The article is not everything. Wallpapers are produced in batches, and each of them corresponds to one filling of the technological line with colorful compositions. Naturally, manufacturers adhere to a single technology when releasing their products, but still, even small differences in the composition of the paint used can significantly affect the appearance of the finish.

The snag is that it is almost impossible to catch such a difference in the store, and the effect of “uneven striping” appears after sticking to the walls. Therefore, when choosing a product of one article, do not forget to check that the batch is completely the same - then all the rolls are guaranteed to fit one another. The party is usually indicated by a group of numbers. On imported wallpaper labels, this indicator is often referred to by a different term: “Batch number” (pos. 2).

• Pay attention to the size of the wallpaper. Not all rolls are the same and this should be kept in mind. There are several standards that can be caught in the modern range of stores.

- The most common are rolls 10.05 long and 0.53 meters wide.

- Increasingly, wider options began to be produced - the same length, but twice as wide - 1.06 meters. Pasting walls with their help, with experience, is significantly accelerated.

- Less often, but still there are wallpapers of the same width (0.53 and 1.06 m), but already 15, 20 and even 25 meters long.

- Some foreign manufacturers adhere to their own standards, and their products may have completely different widths. A fairly wide variety is possible there, but wallpapers with a width of 0.7 m are more often supplied to our market. The width can even reach 1.5 m, but this is already quite a rare occurrence, and high-quality gluing of such huge canvases requires remarkable skill.

Please note that often the size indicates a possible error. That is, if the roll is “end-to-end” is calculated, say, for 4 canvases, then an unpleasant surprise is very possible when the last piece suddenly turns out to be shorter than the others (pos. 3).

The label may contain textual information - it can be easy to understand even without knowing the language (pos. 4).

Finally, the label contains several pictograms that speak about the features of this type of wallpaper (pos. 5) and the rules for fitting the pattern (pos. 6). These icons are standard, independent of the country of manufacture and the language of the text on the label, so it will not be difficult to decipher them. Pictograms can be conditionally divided into several groups, and their meanings are given in the table below:

Pictogram	Deciphering the meaning of the pictogram
Icons that indicate the performance of the wallpaper
	Wallpaper does not have high resistance to moisture - it is enough only for the gluing process.
	Moderate moisture resistance, allowing infrequent wet cleaning of the surface
	Pronounced moisture resistance, which does not limit the owners in the number of wet cleanings
	The wear resistance of the coating allows periodic cleaning with a brush
	There are no restrictions on the number of wet cleanings with a brush and with the use of household detergents.
	The surface trimmed with wallpaper has increased resistance to mechanical stress, including impact and scratching.
	Wallpaper - not resistant to fading.
	Moderate sun resistance
	Wallpaper with increased resistance to fading.
	High resistance to fading when exposed to sunlight.
	Wallpaper with maximum resistance to UV rays, practically unaffected by fading under the most unfavorable conditions of use.
Pictograms characterizing the features of removing wallpaper from the wall
	Wallpaper can be easily removed as a single piece, without pre-moistening.
	When removing the wallpaper, they delaminate into the front layer and the pasted base remaining on the wall.
	To remove wallpaper from the wall, pre-moistening is required.
Icons indicating special properties of the wallpaper
	Wallpaper of duplex type, with a paper or non-woven backing and an embossed front layer. Able to hide minor wall errors.
	This model is part of a selected collection, which includes other decorative elements of the room.
Icons indicating the order in which the adhesive is to be applied
	Glue is applied only to the wallpaper itself.
	Only the wall is smeared with glue.
	The wallpaper is equipped with its own adhesive layer, which requires moistening of the canvases to bring it into working condition.

The next group of icons is already the features of wallpapering and combining a picture. Since this issue directly affects the topic discussed in the article, such pictograms require a little more attention.

	All sheets should be oriented in the same direction indicated by the arrow. The most common type of wallpaper.
	Wallpaper pattern provides for their reverse gluing. The direction of each next canvas is reversed.

The reverse arrangement is usually typical for wallpaper with a vertical linear pattern, which does not require any alignment - only vertical joining. An example of such gluing is shown in the illustration below.

There are such wallpapers - not so often, cutting them does not cause any particular difficulties, and most importantly - just do not forget about the need for a constant change of direction - so the picture will acquire the necessary completeness.

This type is the most convenient for cutting and further gluing. Cutting of cloths in the necessary length can be made from any arbitrarily taken point. As a rule, this is a finish with vertical lines or with a completely chaotic pattern - embossed or tinted.

	Wallpapers are glued end-to-end with canvases, with the combination of a symmetrically located pattern - horizontal alignment.
	The wallpaper is also glued end-to-end with canvases, but the pattern is spaced vertically. The result is a diagonal pattern.
	The value of the rapport (drawing step) and the magnitude of the offset (usually - ½ of the rapport).

Here it is necessary to make special explanations, since the cases are already more complex both for cutting and for hanging on the wall.

• In the first case, it is a little simpler - all wallpaper canvases are symmetrical to one another or completely similar, that is, with preliminary cutting, you can always focus on one point. And since in the vast majority of cases, cutting wallpaper into rolls in production is also carried out automatically from one starting point, it will be easier to cut at home.

True, there is a nuance that can "disappoint" the master.

There is such a thing - rapport. This is a step between two completely identical vertical patterns. Since in this case all the canvases start from one point, the option is not ruled out that after cutting the sheet, in order to start a new one, you will have to remove a lot of trimmings. In the most unfavorable case, such a cut can approach the height of the rapport in its length, and that, in turn, sometimes reaches half a meter or more. This must be taken into account when making calculations.

• The next case is even more difficult for cutting, and often causes difficulties for inexperienced craftsmen with the correct wallpapering.

In this version, the pattern also has its own step, but the canvases are no longer symmetrical or do not start from one point, since the pattern is shifted diagonally by a certain amount. Most often, this is half the rapport, although there are separate types of wallpaper that can have an offset of ⅓ steps.

Wallpaper for painting

Again, when cutting canvases, the situation is not ruled out when pieces will go into trimmings, in the worst case, even up to a whole rapport.

• The next in the table shows the icon, which indicates the height of the rapport (in the numerator) and the amount of displacement of the pattern on the adjacent canvas (in the denominator). This should also be taken into account when calculating the required number of wallpapers.

This type is not so common, and usually such wallpapers do not require adjustment of the pattern - they simply create a common canvas, for example, for painting. So no special features are expected when cutting such sheets.

How is the calculation of the number of wallpapers

Determination of consumption using tables

The easiest way, of course, to determine the required amount of wallpaper, is to refer to the tables that show the dependence on the perimeter of the room or even on the area of ​​the room.

Consumption tables:

- for rolls of standard 10.05 × 0.53 m (from the perimeter of the room):

Height of the glued wall, meters	Room perimeter, including windows and doors, meters
	6	9	10	12	13	14	15	16	17	18	19	21
from 2.15 to 2.30	3	4	5	5	6	6	7	7	8	8	9	9
from 2.30 to 2.45	3	5	5	6	6	7	7	8	8	9	9	10
from 2.45 to 2.60	3	5	5	6	7	7	8	9	9	10	10	11
from 2.60 to 2.75	4	5	5	6	7	7	8	9	9	10	10	11
from 2.75 to 2.90	4	6	6	7	7	8	9	9	10	10	11	12
from 2.90 to 3.05	4	6	6	7	8	8	9	10	10	11	12	12
from 3.05 to 3.20	4	6	7	8	8	9	10	10	11	12	13	13

- for rolls of standard 10.05 × 0.53 m (from the area of ​​​​the room):

Height of the glued wall
up to 2.5 m		from 2.6 to 3 m
Room area, m²	Number of rolls	Room area, m²	Number of rolls
6	5	6	7
10	6	10	9
12	7	12	10
14	8	14	10
16	8	16	11
18	9	18	12
20	9	20	13
22	10	22	14
24	10	24	15
26	11	26	16
28	11	28	17
30	12	30	18

- for rolls of standard 15.0 × 0.53 m (from the perimeter of the room):

Room perimeter, (including windows and doors), m	6	10	12	14	16	18	20	22	24	26	28	30
Wall height 2.0 ÷ 2.4 m	2	4	4	5	6	7	7	8	9	10	10	10
Wall height 2.4 ÷ 3.3 m	3	5	6	7	8	9	9	10	11	12	13	14

— for rolls of standard 10.05 × 1.06 m (from the perimeter of the room):

	6	10	12	14	16	18	20	22	24	26	28	30
Wall height 2.0 ÷ 2.4 m	2	3	3	4	4	5	5	6	6	7	7	8
Wall height 2.4 ÷ 3.3 m	2	4	4	5	6	6	7	8	8	9	10	10

— for rolls of standard 25.0 × 1.06 m (from the perimeter of the room):

Room perimeter (including windows and doors), m	10	12	14÷16	18	20÷24	26÷30
Wall height 2.0 ÷ 2.4 m	1	2	2	3	3	4
Wall height 2.4 ÷ 3.3 m	2	2	3	3	4	5

Algorithm for self-calculation of the number of wallpapers

Tables, of course, are convenient, but their accuracy is “lame”. Agree that it is one thing for wallpapers that are joined arbitrarily, without any alignment of the pattern, and quite another if their rapport reaches 500 ÷ 600 mm. In addition, the room may have its own characteristics, which may also require consideration when determining the required number of rolls. Therefore, for greater accuracy, it is still better to carry out the calculation yourself.

The initial data for the calculations, again, will be the length of the walls in the room (perimeter) and the height of the pasted sections.

• Very often in tables or in practical recommendations the term "ceiling height" is mentioned, which, probably, is still not entirely correct, and under certain circumstances can be misleading. It would be more correct to proceed from the positions of the pasted section of the wall, and this value often differs significantly from the height of the ceiling. So, often pasting is carried out with a non-removable plinth at the junction of the floor and wall. Further, wallpapering is recommended to be carried out when already mounted - and this is also a certain height. Yes, and the very idea of ​​\u200b\u200bdecorating a room can provide for gluing paintings not to the very ceiling, but only to a certain level.

If a composite sticker is assumed, in which the lower part of the wall is decorated with one material, and the upper part with another, then calculations are made for each type of wallpaper separately, based on the height of the wall section.

• The second nuance is also obvious - not the entire perimeter of the room can be taken into account, but only the length of those sections that are subject to pasting with this particular type of wallpaper.
• In any case, no matter how the sticker is planned, all vertical sections without exception should be covered with solid canvases. The presence of horizontal joints between wallpapers of the same type is not allowed - this will look extremely ugly.
• This requirement predetermines the first stage of the calculation - you need to find out how many whole canvases can be obtained from one roll.

To do this, it is necessary to divide the length of the roll by the height of the pasted area, to which is added:

- for wallpapers that do not require pattern alignment - at least 25-30 mm on each side, for precise trimming of the canvases in place after gluing. Total, amendment Δ H can be 50 ÷ 60 mm.

- if the wallpaper requires the combination of the pattern, then it is necessary, except Δ h, also take into account the height of the rapport R.

The result is the formula:

n=Lp / (hc +Δ H+R)

n- the number of sheets from one roll;

lp- the length of the wallpaper roll;

hc- the height of the pasted wall;

Δ H- additive for cutting;

R- the amount of rapport.

A simple example. The height of the wall section on which the wallpaper will be pasted (from the plinth to the ceiling border) is 2550 mm. The roll of selected wallpaper is 10,050 mm long and the repeat shown on the label is 32 cm (320 mm).

n \u003d 10050 / (2550 + 50 + 320) \u003d 3.44 ≈ 3 pcs.

The value is always rounded down to the nearest integer. In total, only 3 whole canvases are obtained from one roll. The remainder of each roll will be 1290 mm, but they will also be useful for finishing wall fragments.

• Now you need to decide how many canvases will be required to fill the entire area of ​​\u200b\u200bthe walls around the perimeter of the room (or the finished area). Calculating this is not difficult, since the length of the walls is known, as well as the width of the wallpaper roll.

N = Rp / D

N- the total number of sheets needed;

Rp- the length of the walls (the perimeter of the room or the total length of the finished sections).

D- the width of the wallpaper roll.

For example, a room is completely pasted over, and its perimeter is 17.8 meters. The selected wallpapers are 530 mm wide (0.53 m).

N \u003d 17.8 / 0.53 \u003d 33.58 ≈ 34 sheets

The resulting value is also rounded, but always up.

• It remains only to determine how many rolls you need to purchase. Obviously, you need to divide the total number of sheets by the number of sheets obtained from one roll.

K =N /n

For our example:

K \u003d 34 / 3 \u003d 11.33 ≈ 12 rolls.

The resulting value is always rounded up.

The calculation is quite simple, but perhaps some readers will have questions regarding non-closable sections of the wall - should they be taken into account when making calculations? For example, what about windows and doors?

There is no single “recipe” for this case - a lot depends on the specific features of the room, and one should approach, in a certain sense, creatively:

- Firstly, doors and windows are different. If there is a large panoramic window or a wide double-leaf door on the wall, then it makes little sense to include them in the common perimeter - it is not visible, since the calculated number of wallpaper sheets will be too large, which simply remain unclaimed.

If the window is small, or the door (for example, to the bathroom or bathroom) is not wide, then it often makes sense to simply “not notice” them, and include the area of ​​​​their location in the general perimeter of the room.

- The second evaluation criterion is the amount of material remaining after cutting the rolls. Let's say, in the example discussed above, there is a surplus of 1290 mm from each roll. This amount should be enough to completely close all the fragments of the wall above the doors, above and below the windows. However, it also happens that the roll is cut with almost no residue, and it is not necessary to count on trimming. In this case, of course, it is better to include sections of windows and doors in the general perimeter.

What to do with areas that, in order to save materials and labor costs, the owners do not plan to seal - behind stationary large-sized furniture, behind carpets, etc.? It is difficult to say how justified this approach is, because it is possible that you will soon want to make some kind of rearrangement in the room. However, here everyone decides for himself.

Another tip is to always buy one roll more than the result of the calculations. Even if the pasting went brilliantly, with no defective strips, then this spare roll will not take up much space in storage, but can sometimes come to the rescue. An accidentally damaged surface, an indelible stain and other surprises - you can always carry out a quick cosmetic repair of an unsightly area.

Below is a calculator that will allow you to quickly and with a sufficient degree of accuracy calculate the required number of wallpaper rolls for finishing a room. When compiling it, all the subtleties that were discussed above were taken into account.