No online calculator will help you correctly calculate the consumption of wallpaper for an irregularly shaped room. How much to “throw” on niches, how much to “subtract” on windows and doors, whether to glue behind furniture? Do I need to add a headroom? We asked - we answer.
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Do I need an online calculator?
For guidance only. It is better to calculate how much wallpaper you need yourself, and then check yourself online. There are indeed many wallpaper calculators on the Internet. Some are quite primitive: they ask you to set only three parameters - the length, width and height of the room. Others are more complex: they take into account the rapport and dimensions of the roll. If you use calculators, then it is desirable just such, detailed ones. In any case, the calculator will not calculate niches, ledges and other non-standard areas in the room for you.
1. Determine the required number of paintings (divide the perimeter of the room by the width of the roll).
2. Determine how many sheets are in the roll (divide the length of the roll by the length of one sheet).
3. Determine how many rolls you need (divide indicator No. 1 by indicator No. 2).
Pictured: What A Hoot Little Letters wallpaper 70523 by Harlequin.
Where to start the calculation?
From the perimeter. The perimeter is calculated according to a simple scheme - add the length of one wall to the length of the adjacent wall and multiply by two.
Example: If one wall is 4 meters, the other 3, then the perimeter will be 14 meters.
What are the adjustments for niches and ledges?
They need to be taken into account. In this case, the perimeter is considered differently - since the length of the walls opposite each other will be different (due to niches or ledges). The length of each wall along the floor is measured separately (taking into account recesses and protruding parts). Then all the scores are added up. It turns out the perimeter.
"Subtract" whether windows and doors?
Better not. Of course, these elements are not included in the glued surface, and if you want to save money, you can calculate the width of the door and window openings from the perimeter of the room, but experts do not recommend doing this - traditionally, the area of \u200b\u200bthe window and doorway is left in reserve.
Should you wallpaper behind furniture?
Not if you don't change. Before you calculate the number of wallpapers, think about how the furniture will stand. If one of the walls is completely covered with shelving or a wardrobe, do not bring it into the perimeter of the room, and do not glue the wallpaper behind the furniture.
Behind a lonely closet or chest of drawers wallpaper can also not be glued. But it is not worth subtracting the area of \u200b\u200ba not glued area from the total footage. This area will go to reserve. It is desirable that the wallpaper still go behind the cabinet by 10-15 centimeters.
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If the room niche is occupied by a closet, you can not glue the wallpaper behind it, but it is still better to measure the niche, taking into account all the protrusions, and the results obtained should not be excluded from the calculations.
Why consider rapport?
Important for wallpaper with a pattern. Rapport is the step with which the pattern is repeated on the wallpaper. Its size is indicated on the package. This value must be added to the height of each canvas. Otherwise, it will not be possible to cut the wallpaper so as to combine the pattern between the two canvases.
How to count wallpaper with offset?
In the photo: an icon symbolizing displacement during gluing.
See labeling. It happens that in order to match the pattern, each next canvas must be glued, shifting it up a certain number of centimeters (usually half a rapport). In this case, the offset value is also necessarily added to the total height of each web.
How to determine the height of the canvas?
You need to know the height of the room. Rapport is added to the height of the room, as well as, if required, an offset step. Plus, the margin for the upper and lower cutting of the canvas is usually 8-10 cm.
Example: room height - 2 m 75 cm, rapport - 60 cm, no offset is required. Let's take a margin for cutting wallpaper 10 cm. When adding these indicators, we get the estimated height of the canvas: 3 m 45 cm.
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In rooms with a complex volume, for example, in the attic, the number of paintings for each wall is counted separately. If the wall is sloping, the maximum height is taken as the basis. Get ready for a lot of cuts.
How to determine the right number of canvases?
You need to know the width of the roll. It is always indicated on the packaging. The standard width is 53 cm. But in the case of wallpaper for painting, it happens even more. The perimeter of the room is divided by the width of the roll, the result is rounded up, and so we find out the number of canvases required for pasting the room.
Example: Our perimeter turned out to be 14 m. We divide it by 53 cm. We round the result to the nearest integer and get 27 canvases.
When calculating the height of the wallpaper, you need to know the height of the ceiling in the room. To this figure, do not forget to add rapport and 8-10 cm for cutting.
Pictured: Magnolia 72/3009 wallpaper from Cole & Son.
How many sheets are in a roll?
You need to know the length of the roll. It is also always indicated on the packaging. The standard length is 10 m 05 cm, although there are other options. Divide the length of the roll by the height of the canvas. The figure is rounded down.
Example: The length of the roll is 10 m. The height of the canvas is 3 m 45 cm. This means that only two canvases fit into one roll. The rest, alas, are scraps.
How many rolls do you need per room?
Final count. The number of sheets you need per room is divided by the number of sheets in the roll. We round the result up and add one more roll to the reserve.
Example: We need 27 canvases per room. We have 2 sheets per roll. After rounding, we get 14 rolls and add one more. Result: 15 rolls.
Why leave a roll in reserve?
In case of marriage. When gluing, there is always a risk of spoiling one or two canvases. Therefore, you cannot do without a spare roll - even if you did not save in the calculation and did not subtract the area of \u200b\u200bwindows, doors and chests of drawers.
For repair. A spare roll will come in handy to seal the soiled or worn area on the wallpaper in the future. If the room is running and there are animals or children in the house, the appearance of such areas will not take long.
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Do not throw away leftover wallpaper and unused rolls: they will almost certainly come in handy for the maintenance of worn or stained areas on the walls.
Good afternoon everyone! There are several ways to calculate wallpaper by the area of \u200b\u200bthe room. In addition, the calculation of the quantity depends on the pattern on the wallpaper, the method of gluing - whether there is a need to customize them or whether they are glued in a row, without selection.
Wallpaper is a magnificent type of decoration, there are a great many of them - for every taste. It is desirable to calculate the wallpaper as accurately as possible so that there is not much waste left, and most importantly, that the purchased amount is enough for the room.
How to calculate wallpaper correctly
We set the size of the room:
- Width = 3 meters
- Length = 5.5 meters
- Height = 2.5 meters
To determine the area of the sticker, you, the perimeter is the sum of all sides of the room, multiply by its height. In numbers it looks like this:
3+3+5.5+5.5= 17m x 2.5m = 42.5m2.
Now from the total area it is necessary to subtract the area of openings - this is a door and a window or two. We measure the width and height of the window with a tape measure - they are all different for everyone, but in the example we use the size of the area - 1.5x1.5 = 2.25m2 .
If you also have a balcony door, then I suggest counting the entire balcony block together as a rectangle, since a battery is usually located under the window. Then the calculation will be: 1.7x 2.35 = 4m2, like mine.
Consider the door to the room. By area, it will be equal to 2.1x 0.8 \u003d 1.7 m2
Now let's calculate the total need for wallpaper:
42.5m2 (total area) - 2.25 (window) - 1.7 (door) = 38.6m2.
Or with a balcony 42.5 - 4 - 1.7 \u003d 36.8 m2.
Now you have to select the wallpaper to know its length and width and determine how many rolls you need. For example, you chose wallpaper 10 meters and a width of 0.53 meters, then the area of the roll = 5.3 m2. You need to take 38.6: 5.3 = 7.3 rolls, that is, 8 pieces.
wide wallpaper If the wallpaper is meter long, then the area of the roll = 10.6 m2 and you will need 38.6: 10.6 = 3.64 or 4 pieces. If you plan to glue them, then check out the article - how to glue meter-long wallpaper correctly.
Suddenly, someone decided to stick wallpaper in two colors, then you can read about it in the article - sticking wallpaper in two colors. The total need for wallpaper will remain unchanged, just divide them into different colors.
My painter's workers calculate the number of wallpapers in their own way - they do not need the area, since the girls count the number of stripes on the old wallpaper on the walls. If the wallpaper has already been removed, then they measure the width of the wallpaper with a tape measure and apply the specified width around the entire perimeter of the room, calculating the number of stripes. Let's say it turned out 26 strips, which means you need 26: 4 \u003d 6.5 rolls. Round up to seven. And you know, they think just as well as I do with my arithmetic calculations.
Wallpaper calculation with pattern selection
- Wallpaper with a selection of a pattern can be calculated according to the same principle, determining the area of \u200b\u200bthe walls. To choose a pattern, you need to shift the canvases by 15-30cm. So calculate that each roll will take up to 1.2 meters (4 strips x 0.3 m offset). That is, you will already get 3 whole canvases and a piece. Moreover, there is a pattern - the larger the pattern in size, the more you need to move the wallpaper for selection.
- Of course, it is possible, in order to save money, and we all strive for this, to put these pieces into action and paste them over the wall behind the wall, closet and other objects. This is especially true if the wallpaper is expensive, and we are financially economical. There are different situations.
- But I want to tell you that it is not for nothing that they say that "need for inventions is cunning." It is possible to combine the bottom or top of one wall from these meter or one and a half meter pieces, and the second will be from wallpaper of a different tone, texture. Or from them to insert into the wallpaper of another room. Here you have waste-free production, and it will turn out in an original way by design.
Now they offer many tables and “calculators” for calculating, but I am an “unbelieving Thomas” and I count everything myself, measure and calculate exactly according to the above method, which I shared with you.
How to find out how much wallpaper you need per room? The amount, of course, depends on the size of your room. To determine the required number of trellises, we need to calculate the perimeter or area.
What is needed for this?
Firstly, this is a tape measure for measuring the room, secondly, a notebook or notepad to record the measurement results, and finally, a calculator.
Calculation of wallpaper by room area and perimeter. Simple and clear table.
First you need to measure the length and height of the room where you are going to glue the wallpaper. It is also worth measuring the door and window openings. This will help improve the calculation.
First you need to calculate the perimeter of the room:
P = (L of one wall + L of adjacent wall) * 2
P is the perimeter;
L is the length.
Estimated web length, how to calculate?
To accurately know the length of the wallpaper, you must use the formula:
Estimated strip height = room height + ornament pitch (rapport) + margin for upper and lower allowances (5 cm)
Work begins by measuring the width of the wallpaper strips you have chosen. After that, count how many strips you need to paste the room:
N stripes per room = P / wallpaper stripe width
Counting from one roll.
Find out the length of the roll, which is indicated on the label. And then calculate according to the formula:
N strips from 1 roll = L roll / calculated strip height
N is the quantity.
Calculation of wallpaper rolls per room.
After all the work done, we will find out how many rolls are needed for pasting the room:
N rolls = N strips per room / N strips from 1 roll
Calculation of wallpaper by the area of the room.
Since, the calculation along the perimeter may not always be relevant, because the number of doors and windows is not included in the calculation, because of this, the amount is calculated by area.
We measure the area of \u200b\u200bthe walls using the following formula:
SO = L wall * H wall
S is the area;
SO - total area;
H is the height.
You also need to calculate the area of \u200b\u200bthe walls on which you will glue the wallpaper. But before that, you need to calculate the sum of door and window openings. And then use this formula:
S wallpapering \u003d SO - S windows and doors
If the roll fits the standard 53 cm wide and 10 m long, it is designed for approximately 5 sq.m. rooms.
To calculate you need:
N rolls = S rooms / S that can be glued with 1 roll
Is there a pattern on your wallpaper?
If there is a drawing on your wallpaper, first of all you need to find out its report, and then calculate the final ceiling height for it and carry out the calculation along with it.
Using tables
In order to use the table, you need to know the perimeter and area of the room. It depends on which table you need to use.
Calculation by area, table:
To use this kind of table, you must know the height and square of the room. And then you can easily find out the required number of rolls.
Table #1 53
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Ceiling height up to 2.5 meters |
Ceiling height 2.6 - 3 meters |
||
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Room area |
Number of rolls |
Room area |
Number of rolls |
Table number 2 designed for wallpaper equal to the width 70 centimeters and 10 meters long.
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Ceiling height up to 2.5 meters |
Ceiling height 2.6 - 3 meters |
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Room area |
Number of rolls |
Room area |
Number of rolls |
Table #3 designed for wallpaper equal to the width 106 centimeters and 10 meters long.
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Ceiling height up to 2.5 meters |
Ceiling height 2.6 - 3 meters |
||
|
Room area |
Number of rolls |
Room area |
Number of rolls |
Perimeter calculation, table:
To use the table below, you need to calculate the width of the stripes and the length of the wallpaper you have chosen. After that, you need to measure the height of the ceiling and look at the table, how many rolls you will need.
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
Before you paste over the walls, you need to calculate the amount of wallpaper for the roomWallpaper is one of the most popular materials for decorating an apartment. They are easy to use and give the walls a noble and neat appearance. However, for many, the main difficulty in using this material is the calculation of the required number of rolls. And this is not surprising, because there are a huge number of nuances that are important to know in order to calculate the wallpaper footage correctly.
Wallpaper calculation: step by step instructions
Before you go to the wallpaper store, you need to find out exactly how many meters of this material you need to finish the apartment. After all, if you purchase fewer rolls than you need, then in order to glue the room you will have to find the same material, which is sometimes very difficult to do. More wallpaper leads to unjustified costs.
- First of all, you need to measure the length of two adjacent walls. The resulting size is multiplied by two.
- Next, you need to measure the height of the wall. This is necessary in order to find out how many sheets can be obtained from a roll.
- Now the length of the wallpaper in the roll is divided by the height of the wall. The resulting number of canvases is multiplied by the width of the wallpaper. This is the area that can be covered with one roll.
- To find out the number of rolls that you need to purchase, the perimeter of the room in centimeters is divided by the area that can be covered with one roll. The resulting figure is rounded up.
Thus, the formula for calculating the number of rolls looks like this: P (room perimeter) / (L (wallpaper length) / C (height) * E (wallpaper width)); R:L:S*E = number of rolls.
To find out the number of wallpapers you need, it is not necessary to make calculations yourself. You can use the online calculator. There is also a table that shows the standard footage of wallpaper for standard apartments.
Quick calculation of wallpaper by room area
Calculating the area around the perimeter is a fairly common method, but there is another equally fast option. It is used by most professional painters.
For calculations, we need to find out the area of \u200b\u200bthe room. To do this, add the width of the wall to the width of the adjacent wall, and then multiply the resulting amount by two. We figured out the perimeter, which must be multiplied by the height of the walls. Thus, we found out the area of \u200b\u200bthe room.
When we know the area of the room, we need to find out the area that can be pasted over with one roll of wallpaper. To do this, we multiply its width by its length. The resulting number is rounded down. To find out these parameters, just look at the packaging, the manufacturer must indicate there all the information about his product.
A quick calculation of wallpaper by the area of \u200b\u200bthe room can be done in two ways
Now the resulting areas can be divided into each other. That is, we divide the dimensions of the room by the dimensions of the wallpaper. The resulting number must be rounded up. This value will be the required number of rolls.
The formula for calculating wallpaper by area looks something like this: S rooms (A + B) (wall width) X 2 X C (wall height): S wallpaper (K (wallpaper width) X T (wallpaper length).
Each wallpaper material weighs differently, so it is impossible to know the amount of wallpaper needed by weight. If you do not want to do the calculations yourself, you can turn to special tables and calculators.
How to calculate the number of wallpapers adjusted for the pattern
The number of rolls that will be needed for one room directly depends on how the wallpaper is designed. It may seem strange, but from the size and complexity of the pattern, a lot of wallpaper waste can be generated.
To count the number of rolls, you need to pay attention to the marks on the package
What are the wallpapers according to the type of combination:
- Pattern matching is not required. This designation is an arrow pointing to a circle. This option is the easiest. It is suitable for wallpaper with a small unexpressed pattern or without it at all. The consumption of such wallpaper exactly corresponds to the formula.
- The arrows pointing one up and the other down indicate that the wallpaper must be turned upside down through one. This method also does not require additional material costs, however, when gluing, you need to be extremely careful.
- A more complex option is when the drawing requires mandatory matching. This method is quite costly and usually requires the removal of a piece close to the size of one report from some strips of wallpaper. In this case, an icon appears on the package with arrows located at the ends parallel to each other.
- The variant with a pattern shift is the heaviest in gluing, and requires the highest consumption of wallpaper. With this option, from each new canvas, you will have to cut off a strip of wallpaper equal to about half the report. Such gluing is characteristic of wallpaper with a large pattern located diagonally. In this icon, the arrows look at each other, but are located at different levels.
It is very easy to make a mistake with the penultimate and last type of wallpaper. You can either incorrectly count the number, or inaccurately combine the pattern, and then the room will look strange and sloppy.
When choosing such wallpaper, be prepared for the fact that you will have to purchase at least two rolls more. The advantage of wallpaper with a pattern is that it looks very eccentric and hides all the unevenness of the walls.
How much wallpaper do you need in a room with a non-standard layout
When measuring the parameters of a room, it is imperative to take into account its layout. If this is not done, then in the end you may simply not have enough rolls of material.
Particular attention should be paid to niches, ledges and columns. They take a fairly large amount of material. The niche area is calculated separately, and then added to the main dimensions.
In a room with a non-standard layout, special attention should be paid to niches, ledges and columns.
If you plan to use built-in wardrobes in the interior, then you can not wallpaper the places where they will stand. However, in this case, you deprive yourself of the opportunity to reshuffle without updating the repair.
It is also worth considering the characteristic features of the design of your room. If you decide to use several types of wallpaper in one room, then their footage must be calculated separately. For example, the area of \u200b\u200bone wall is calculated separately, and separately for the other three.
The calculation of materials for repairs is an important point in the decoration of the apartment. There are a huge number of special calculators and tables, but do not forget about the good old formulas that have helped builders more than once at the right time.
Technology: how to calculate wallpaper for a room (video)
When planning the design of an apartment, remember that the more types of wallpaper are present in one room, the more difficult it will be to find out the required number of rolls. Of course, this fact is not a reason to abandon their ideas. If you are not sure that you can correctly calculate the amount of wallpaper, you can turn to professionals or consult with a good sales assistant at a hardware store.
Standard wallpaper sizes
Our compatriots used to be the most acceptable standard wallpaper width, which was 53 cm, and the length was 10.05 m. These dimensions are still confirmed by the interstate standard.
Modern Russian manufacturers to this day adhere to the listed sizes, but they have begun to produce wide wallpaper for walls - 1.06 m much more often, as they are of increasing interest to our compatriots. For German or Italian companies, the width of the wallpaper roll is 0.53; 0.6; 0.7; 1.06; 1.4 m
To glue wallpaper with a width of 1 meter, unlike the traditional 0.53 m, is much faster, and there are fewer seams on the walls.
A number of manufacturers produce products of various sizes. The dimensions of textile wallpaper for walls can be 3.18 m wide and up to 50 m long. But it is worth noting that such products are very limited, as they are expensive and status.
In this case, manufacturers are guided by GOST 6810-2002, and you will read more detailed information about them in the article "". The table shows the dimensions of the textile wall covering.
As we see , meter wallpapers or canvases close to this standard are offered by manufacturers from any material.
But still, according to studies compiled by ABARUS Market Research according to FSGS RF 09.12.2015 "Market of rolled wall materials: paper wallpaper, non-woven, vinyl, glass wallpaper", revealed the dynamics of the increase in the share of vinyl wallpaper in comparison with the total production volume.
Offer Chart
The table shows the characteristics of vinyl sheets, they are produced according to the state standard.
A roll of premium wallpaper from the Belgian factory Omexco has a width of 90, 100 and 140 cm, while the collections of the French company Elitis offer samples with a width of 70 and 90 cm. According to our research, Russian consumers until recently preferred wallpaper for walls with a roll width of 0, 53 m. But according to data collected in 2012, wide wallpaper sizes are now a priority - 1.06 m.
After analyzing the sizes of wallpaper in rolls that are currently being sold, we have compiled a table where we have classified all the wall paintings in demand.
The formula for calculating the square of the roll
Knowing the width and length of the roll, it is easy to calculate its quadrature.
$\quicklatex(size=25)\boxed(roll_s = (A\times B)$
- S roll - area;
- A - width;
- B is the length.
Let's say we need to find out how many squares there will be in a roll meter canvases with a length of 10 meters. That is, A \u003d 1.06 m, B \u003d 10 m, which means
S \u003d 1.06 x 10 \u003d 10.06 m 2.
Instructions for calculating the number of wallpapers on the walls
For this, several formulas are used, because not all rooms are rectangular - there are rooms of various geometric shapes:
- oval;
- trapezoidal;
- triangular;
- multifaceted.
Rectangular walls
We use a regular tape measure to get an accurate result. To correctly calculate the wallpaper for any room, measurements are taken in meters, accuracy up to one centimeter (two decimal places) is sufficient.
- Calculate the area of \u200b\u200beach wall, remove the quadrature of door or window openings from it, add up the resulting numbers.
Calculate the area using the formula: $$\quicklatex(size=25)\boxed( S = ((a\times h))+((a_(1)\times h))+((b\times h))+( (b_(1)\times h)))$$
- S is the area of the wall;
- h is the height of the room;
- a, а1 – d>length;
- b, b1 - width
After counting, subtract the area of the openings and get the required figure.
- Measure the perimeter of the entire room, multiply it by the height, subtract the area of windows or doors from the resulting quadrature.
Perimeter - the sum of the lengths of all sides of the room, it is better to measure by the floor. Measure the length of each wall from corner to corner and add up the 4 numbers..
$$\quicklatex(size=25)\boxed(P = AB+BC+CD+DA)$$
- P - the perimeter of the room;
- AB, BC, CD, DA - wall lengths.
Multiply the result by the height to get the area. We will calculate according to the formula:
$$\quicklatex(size=25)\boxed(S = (P\times h))$$
- S is the area of the room;
- P is the perimeter of the room;
- h is the height of the wall.
To make the calculation of wallpaper according to the area of the room reliable, it is necessary to subtract the area of door or window openings from the total area of \u200b\u200bthe walls. Having a tape measure, this is not difficult to do, just measure their height and length. But we offer you tables with their standard sizes.
The table shows the overall dimensions, area of window and balcony door blocks made according to GOST 23166-99 which apply to products made of wood, plastic, metal alloys.
The figure shows various design options for window and balcony door blocks.
Internal wooden doors are manufactured according to GOST 6629-88 and standard sizes of typical openings are shown in the table.
In addition to standard door sizes, when all parameters are known, there is a possibility of installing non-standard canvases. Especially this practice is used in low-rise construction.
The area of window and door openings is measured along the outer contour of the box.
The diagram shows the dimensions required for the calculation.
$$\quicklatex(size=25)\boxed(S = (A\times h))$$
- S - opening area;
- A - the width of the opening;
- h is its height.
If it is not possible to determine the exact dimensions, then the width dimensions are easy to find on your own.
To do this, the width of the opening is determined by the formula:
A of the opening = A of the canvas + A of the box ∗2 + A of the spare gap for filling with mounting foam (on both sides of the canvas).
The height of the opening is also considered:
opening h = h canvas + h (thickness) of the box + h threshold + h spare gaptop and bottom.
To calculate the arched opening, you must:
- Visually break it into a rectangle and a semicircle.
$$\quicklatex(size=25)\boxed(S = (A\times h))$$
Where:
- S - opening area;
- A - opening width;
- h is its height.
b) make another calculation according to the formula:
$$\quicklatex(size=25)\boxed(S =(\frac (\pi\times R^(2))(2)))$$
- S - opening area;
- π is a constant number, the value of which is 3.14;
- R is the radius, which in this case is equal to half the length between opposite walls.
- Add up the resulting areas and get the total area of the opening.
You need to know that according to the standards, depending on the functional purpose of the room, the dimensions of the door panels have different sizes.
Walls with complex configurations
If you know how to correctly calculate how much wallpaper you need for a room that has various shapes, these tables will help you cope with the task.
There are also rooms with round configurations.
Their area will be calculated using the following formula:
Attic rooms have such design features.
Trapezoidal wall shape
Lovers of extraordinary interiors
Before counting the number of wallpapers for any room, take the right measurements. If you use a laser tape measure, then make sure that its beam is directed strictly perpendicular to the surface. Otherwise, there will be a large error in measurements and final results.
You can determine how many rolls of wallpaper you need to wallpaper a room in the following sequence:
But if you want to know the exact figure without tedious calculations and knowledge of geometric formulas, then the calculation of the number of wallpapers per room is presented in the following table. To compile it, you need:
- area of the room;
- ceiling height;
- data on how many square meters (m 2) are in one roll of wallpaper (length times width).
The data is calculated for an average room with one door and a window, so you will need to subtract no more than 7 m from one roll and discard 10% of the real area for trimming.
If the sheets need the selection of a pattern, you will have to add 15-20% - for every 6 rolls lay one more additional one.
Expert opinion site
We will also tell you how to determine the number of sheets in one roll. To do this, you need to know how many meters is the total length (indicated on the packaging insert) and the height of the future canvas. Let's say the length of the roll is 10.05 m, and the height of the web is 3.45 m.
10,05:3,45=2,91
In this case, the integer 2 is obtained, which means that only two full-fledged canvases can be obtained from one canvas of this length. The remaining 3.19 m long cut can be put into places of lower height or left in reserve. But if you need to customize the pattern, you will be left with an even smaller piece.
It is important to remember that most of the paintings are made with a compatible pattern, therefore, the consumption of wallpaper per room will be greater than in the case of simple wallpaper without patterns.
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