To make a simple but rather attractive renovation in a standard room, it is enough to use high-quality, inexpensive wallpaper. They will be an excellent means of decorating a room, providing good operational and aesthetic qualities.
Calculating the amount of building materials for decorating a room is as difficult as it is simple. To begin with, the trick is often in uneven walls or ceilings, in the end it turns out not too pleasant when at the end there is not enough calculated material to complete the repair. Therefore, we will try to take into account the maximum of factors in order to achieve the desired result. Let's find out how to calculate wallpaper for a room.
You will learn about:
Measurements
Accurate measurements are an important basis for further actions. A tape measure is required to complete this operation. With its help, we first find out the perimeter of the room, not taking into account the width of the doors and windows, as well as the areas above or below these elements.
Based on these data, you can already calculate the wallpaper for the room. The resulting figure must be divided by the width of the wallpaper to determine the number of canvases. The length of the roll must be divided by the height of the ceilings, which will allow you to calculate the number of canvases in one roll. Now it remains to divide the total number of whole canvases by the number that is obtained from one roll.
As a result, we get the number of whole stripes. To them you need to add more incomplete pieces, which must be taken into account in the calculations. You can count them according to the same principle.
If there is a drawing
We considered the option of calculating, if plain wallpaper is used, and if products with a pattern are used, which requires the combination of canvases, what should be done? The number of wallpapers per room in this case is calculated a little more complicated.
It should be borne in mind that less will be calculated for one sheet in a roll.
Example
Let's give an example of how to calculate how much you need, how many rolls of wallpaper. For example, we have a premise area. 12 sq. m. height 2.5 m. The room has a window (1.2x1.5 m) and a door (0.8x2.1 m). Let's say we chose a material whose roll width is 60 cm, length - 10.5 m.
In this case, the perimeter will be 12 m, minus the width of the window and door. As a result, 20 canvases are needed: 12 / 0.6. With a roll length of 10.5 m, 4 pieces of wallpaper are obtained. As a result, there will be 5: 20/4 whole stripes.
It is also necessary to take into account the areas above the door, as well as above and below the window. There will be enough scraps for this. However, it is recommended to add at least one more roll for an area of 12 sq. m.Consequently, if the wallpaper is monochromatic, you can buy at least 6 rolls, with a pattern - 7.
A room with an area of 18 sq. m. How many rolls are required in this case? Let's try to count according to the old scheme.
So, the perimeter will be 20 m. You will need 34 canvases: 20 / 0.6. And the whole stripes will turn out to be 8.5. That is, you need to buy without drawing 10, with a drawing - 11 rolls. These are the recommendations for rooms with an area of 18 square meters. m.
The selected examples are not accidental, since these dimensions of the premises, 12 sq. m and 18 sq. m. are the most popular. Therefore, for many, the task of how to calculate how much wallpaper is required per room will be greatly simplified.
Summing up
You should not be dismissive of such recommendations, since they allow you to lay a qualitative foundation for further actions, which means that the result will depend on them. The calculation should be made as accurately as possible, this will eliminate the need to buy additional material in the midst of the repair process.
Calculations can be compared to preparing walls for wallpapering. If the procedure is carried out efficiently, the result will delight in attractiveness. It remains to recommend not to rush into calculations. As they say, it is better to measure seven times, but cut off once ...
Starting a repair, you will inevitably face the problem of how to correctly calculate the required amount of materials, in particular wallpaper. Whether you are doing repairs on your own, or resorting to the help of specialists, it is better to independently control how many rolls of wallpaper you will need to purchase for each room.
How to calculate the quantity correctly
You will need to buy the necessary materials with a small margin, so that there is no need to run around the shops for missing material. Moreover, wallpapers from different batches may differ in shades of colors, which will be noticeable in the pasted canvas.
Excess rolls are also almost always not used, besides, modern high-quality wallpapers are also not cheap. Throwing away a lot of money so that an extra couple of rolls then gather dust in the pantry is also not interesting.
Experts advise:
- Use the services of an experienced upholsterer;
- Use a wallpaper calculator;
- Calculate the amount of material for the old wallpaper.
For an experienced craftsman, counting the number of wallpapers will not be difficult. But if you are new to wallpapering walls, you can use the services of a special construction calculator. Their developers offer to enter data on the size of the room and the width of the intended wallpaper, and you will be given a result on the number of rolls.
We consider at our own peril and risk
It would be more correct to calculate on such a calculator, in the operating conditions of which there are data on the number and area of windows and doors in the room to be pasted, as well as the dimensions of the rolls that you are going to use. In different rooms of the same perimeter, there may be one window and one door, or maybe several, and three, and five. Calculating the dimensions of the surface to be pasted, the area of windows and doors will need to be subtracted from the total area of the room. Therefore, the calculation error that the calculator gives will be the smaller, the more parameters are included in the algorithm of its operation.
What is a construction calculator
On the other hand, there is nothing difficult in how to calculate the correct number of rolls of wallpaper without using a special one. To do this, you need to measure the perimeter of your room. If the room has a standard rectangular shape, you can measure two adjacent walls, add their size and multiply by two. This will be the perimeter of the room. If the room has a non-standard shape (in individually built houses or as a result of redevelopment, or for some other reason), as well as if the room has ledges, niches or other non-standard elements, you will need to measure the length of each straight wall segment using a tape measure and add up all indicators.
It happens that, due to economy, some sections of the walls are not supposed to be pasted over with wallpaper. For example, if you have massive wardrobes or a furniture wall in your room that you can't put in any other way. If the rearrangement or replacement of furniture is not supposed to be done, then the dimensions of the wall behind the furniture will need to be subtracted from the calculations.
Important! Before buying your favorite wallpaper, carefully study the information on the label, check the dimensions of the wallpaper (length and width), how to properly join the panels.
Specificity of material calculation
The correctness of the calculation of the required amount of materials depends on this. Then it is recommended to calculate how many whole wallpapers are obtained from one roll. To do this, you need to measure the height of the wall to the ceiling or to the level on the wall to which you plan to paste the wallpaper. If you have purchased or are planning to purchase wallpaper without a pattern, then you will not need to make an amendment to align the pattern. In this case, it is necessary to divide the length of the roll by the length of one panel, which you determined when measuring the height of the wall to the ceiling, and calculate how many canvases will be obtained from the roll.
Calculation examples
With a ceiling height of up to 2.5 meters, four whole panels are obtained from one standard 10-meter roll (if there is no need to combine the pattern). In the case of buying wallpaper that requires the combination of canvases according to the pattern, it will be necessary to make an amendment for the combination of the pattern, see the calculation for such wallpaper below in the text.
If the length of your panel (ceiling height) is higher than 2.5 m, only three whole panels will come out, but each roll will produce a large residue, almost in the panel, which can be used by pasting over doorways and the space under and above window openings. In this case, the perimeter of doors and windows can be subtracted from the perimeter of the room, and only how many long panels are required. We divide the resulting perimeter of the walls by the width of the roll, so you can count the number of long panels required for pasting the walls. Then we multiply the required number of panels per room by the resulting number of whole canvases from one roll, the result will be equal to the required number of rolls.
For example, your room has a perimeter of 25 m, a roll width of 0.5 m. The total number of panels for pasting such a room is 25: 0.5 = 50. With a ceiling height of up to 2.5 m, 4 canvases are obtained from a roll, the number of rolls 50: 4 = 12.5 is rounded to 13.
If, when calculating, you get a fractional value, then rounding is necessarily done up. Do not forget when calculating that all quantities must be in the same units. If you take the perimeter of the room in meters, then also use the width of the wallpaper roll in meters, and do not forget to translate the rest of the indicators into meters. Otherwise, you will not get a reliable result, how much material is needed.
Wallpaper without a pronounced pattern is easiest to glue. Difficulties arise if the material has a large pattern, floral ornament or geometric pattern. In this case, you will have to take into account the displacement of the pattern on the canvases in order to correctly combine the adjacent stripes.
Usually, the markings indicate the size of the rapport (through what distance the same pattern is repeated on the wallpaper), as well as what kind of joining of the wallpaper cloths should be when gluing them.
There are such docking options:
- Free docking;
- Direct docking;
- Offset docking;
- Oncoming docking.
Free joining involves gluing strips without adjusting the pattern, the strips can be cut from the roll of the desired size, without cutting anything to align the strips. In these wallpapers, the pattern does not have any clear repetition, and there is no need to select the pattern of adjacent canvases. In this case, it is easy to calculate how much material will be needed.
With straight jointed wallpaper, you do not need to move the wallpaper to align the pattern. They indicate the size of the rapport, that is, the length of the repeating section of the pattern. It is only necessary to align adjacent panels in repeating patterns. For example, we have a ceiling height of 230 cm, wallpaper with a pattern with a rapport of 60 cm with a direct joining. One wallpaper should have a size of 230 cm, that is, 230: 60 = 3.833 rapports, round up to 4 rapports so that the next canvas starts with a whole rapport. Thus, when gluing such wallpaper with a pattern, one strip will be 230 cm and 10 cm will have to be cut off each time for waste.
If the wallpaper you purchased has an offset alignment indicated, each subsequent strip must be shifted by the offset amount indicated on the label. For example, the markings indicate the values of 60/30, that is, the rapport is 60 cm, the displacement of the pattern is 30 cm.With the same dimensions of the ceiling height, we will have to cut off the wallpaper linen in four rapports and cut another 30 cm to align the shifted pattern. Thus, one strip with scraps will come out 270 cm, and from one 10-meter roll of wallpaper you will get not four whole stripes, as in wallpaper with straight or free joining, but only three (10: 2.7 = 3.7 stripes) ... If the required displacement is not observed, the correct pattern will not be obtained on the wall as a result of gluing all the strips.
There are also wallpaper canvases in which each subsequent strip must be turned 180 0 in relation to the previous one, so that as a result, the correct ornament is obtained on the wall. This is quite rare in geometric wallpaper.
Important! When buying wallpaper, pay attention to the marking of the joining of the canvases indicated on the label. The correct calculation of how much wallpaper material is required depends on this.
Conclusion
In order for the results of the repair to please you, take the time and effort and carefully approach the question of how many wallpaper will be required for the repair. It is better to do a few calculations using a calculator, tape measure and a pen with paper, resort to the help of store sellers, than to look for missing rolls or collect canvas from all the remaining scraps and waste. If the calculations are made correctly, there will be no surplus of material, no problems with its shortage.
Wallpapering walls is a quick and relatively cheap way to decorate rooms. Before heading to a hardware store, decide how much material you need for a room. To do this, you need to know how to calculate the wallpaper so that there is enough for everything and there is no surplus left.
In this article, we will consider how best to make calculations, what measurements need to be made, what to look for when planning a purchase.
Calculation of wallpaper for a room: formula and instructions
You need to choose the right wallpaper and calculate their numberAlong the perimeter of the walls, it is easy to calculate the wallpaper for the room. The formula is as simple as possible. Use a tape measure to measure the length of two walls, add the resulting numbers and multiply the result by 2.
For example: the length of one wall is 4 m, the other is 6 m. Thus, the perimeter is: (4 + 6) * 2 = 20 m. Then the height of the ceiling is found. Let's say it is 2.5m. At this height, one roll can be divided into four equal strips, since the standard roll length is 10 m and its width is 53 cm.
The total width of the four stripes is calculated by multiplying their number by the width of one strip: 4 * 53 = 212 cm. Then the perimeter is divided by 212, it turns out: 2000/212 = 9.43, round the sum to an even count and get the number 10. Thus, a room with a perimeter of 20 m will need 10 rolls of wallpaper. From the table presented, you can find out how many rolls are required for a room with different ceiling heights and different perimeters.
| Ceiling height | The perimeter of the room, including doors and windows, in meters | ||||||||||
| 9 | 10 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 21 | |
| 2,15 – 2,30 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 |
| 2,30 – 2,45 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 | 10 |
| 2,45 – 2,60 | 5 | 5 | 6 | 7 | 7 | 8 | 9 | 9 | 10 | 10 | 11 |
| 2,60 – 2,75 | 5 | 5 | 6 | 7 | 7 | 8 | 9 | 9 | 10 | 10 | 11 |
| 2,75 – 2,90 | 6 | 6 | 7 | 7 | 8 | 9 | 9 | 10 | 10 | 11 | 12 |
| 2,90 – 3,05 | 6 | 6 | 7 | 8 | 8 | 9 | 10 | 10 | 11 | 12 | 12 |
| 3,05 – 3,20 | 6 | 7 | 8 | 8 | 9 | 10 | 10 | 11 | 12 | 13 | 13 |
How to calculate the number of wallpaper with a pattern
Patterned wallpaper counts differently In order for the fragments of a large drawing to coincide on adjacent panels, they are displaced in a certain way. A sales assistant cannot always advise on how to calculate the number of wallpapers with large patterns. Therefore, when buying them, 2 additional rolls are added to the required number of rolls.
The rapport (the location of the sheets relative to each other and their number on one wall) is indicated on the package. The larger it is, the more waste remains when gluing the combined panels. Therefore, it is advisable to buy more additional rolls for large-sized premises. To save on the remaining waste, you can paste over inconspicuous places: under the battery, behind doors, etc.
Calculation of wallpaper for painting
The standard size of wallpaper for painting is the same as for ordinary ones - 10 m by 53 cm.There are also other size options: 17 m by 53 cm, 33.5 m by 53 cm and others. To calculate them, see the table below:
| Ceiling height (m) | Room perimeter (m) / number of rolls | |||
| 10 | 15 | 20 | 25 | |
| 2 | 2 | 2 | 3 | 3 |
| 2,25 | 2 | 2 | 3 | 4 |
| 2,5 | 2 | 3 | 3 | 4 |
| 2,75 | 2 | 3 | 4 | 4 |
| 3 | 2 | 3 | 4 | 5 |
| 3,25 | 2 | 3 | 4 | 5 |
Calculation of non-woven wallpaper
The width of the rolls of non-woven wallpaper is 100 cm. We must not forget about this, dividing the perimeter of the room by the width of the panels. These wallpapers are calculated according to the same principle as ordinary ones, using the perimeter and height of the walls.
Additional protrusions or corners in the room increase material consumption. When pasting the corners, an overlap is made, and then the wallpaper is cut so that the pattern on the adjacent strips docks exactly. In such cases, 1-2 additional rolls are required.
Calculation of wallpaper for the area of \ u200b \ u200bthe room
Another way of calculating is to calculate the wallpaper by the area of the room. To find the perimeter, we use the already known indicators of length, width, height - 4.6 and 2.5 m. We find the area of one wall: (6 + 4) x 2.5 = 25. We multiply the resulting sum by 2, since there are identical walls in the room 2, and we get 50 square meters.
Then we calculate the area of one roll. To do this, we multiply 0.53 by 10, the product of these numbers is 5.3 square meters and there is the total area of the roll, it can be pasted over 5 square meters of the room.
We calculate wallpaper for walls with a border by the area of the walls or along the perimeter
Modern designers have invented a finishing method in which wallpaper is pasted over not only the wall, but also the border or decorative plinth. There are special wallpapers on sale, the pattern of which is suitable for such pasting. It is applied in such a way that its elements that fall on the curb fit perfectly with the elements on the wall.
Walls with a border look interesting Manufacturers create compositions that allow you to combine wallpaper in contrasting colors and different patterns at the bottom and top of the wall. And the border will serve as a separator of the drawings.
Usually, rooms with borders are faced from the ratio: 1 part to the bottom, 2 parts to the top. The number of wallpapers with such a facing is also calculated based on the perimeter.
With a ceiling height of 2, 68, the length of the lower panel is 100 cm, the upper one will have to be 168 cm. From one 10-meter roll you get either 10 lower parts or 5 upper parts. Those. the length of one roll is divided by the length of each piece.
If you find it difficult to calculate the perimeter, you can use the following algorithm. Add the length and width, multiply the result by 2 and subtract the width of the door and window openings from the product. For example, the width of the room is 6 m, the length is 4 m.The standard width of the door is 0.9 m, the window is 1.5 m. Mathematically, it looks like this: (6 + 4) * 2 - (0.9 + 1.5) = 17.6 m, which is the total perimeter of the room.
To calculate the bottom part, divide the roll into 10 strips 53 cm wide. 53/10 = 5.3 is the area that requires 1 roll of wallpaper. Then, we divide the perimeter by this figure: 17.6 / 5.3 = 3.3. Thus, for cladding the lower part of the room, 3-3.5 rolls are required.
The upper part is calculated in the same way. It is known that 5 top panels are obtained from 1 roll. One roll can be used to paste over 2.6 meters of walls. The perimeter is 17.6 divided by 2.6. As a result, 7 rolls are enough for the upper part of the room.
There is another way, in which the number of wallpapers is calculated by the area of the walls. To do this, we will conventionally take the upper and lower parts of one wall for different walls. We find the area of each of them according to the well-known formula. Then we add the two resulting works and multiply by 4, according to the number of walls in the room.
Calculations for combined cladding
Cladding is not always limited to just wallpapering. Modern designers offer combined wall decoration solutions. Either different types of materials or wallpapers of different textures and colors can be used.
The material for such a repair is calculated individually for each case. For example, you are going to highlight with a bright insert a fragment of a wall 3 m wide. With a ceiling height of 2.5 m, 6 panels or 1.5 rolls of wallpaper will be spent on this insert. For this you need 1 roll of non-woven wallpaper, since its width is 100 cm.
Different finishes can be combined Wallpaper is a convenient and practical way of interior wall decoration, which has not lost its popularity over the years. In addition, if it is necessary to update the repair without much expense and effort, it is enough just to stick other wallpaper.
The choice of materials and colors is large enough so that everyone can choose a pattern to their liking. When choosing wallpaper, one should not forget not only about calculating the required amount, but also about the correct selection of consumables (glue, brushes).
Perhaps you will have some wallpaper left, and then, in case of minor damage to the surface, you can make gluing, hiding the defects.
If you doubt that you can stick the wallpaper yourself, seek help from specialists.
Seven times measure cut once. You cannot argue with folk wisdom, especially when you need to independently calculate the wallpaper for a room.
The pieces remaining from the panels, and even more so the extra rolls, are not suitable for almost anything (yes, we always leave them "in reserve", but as a rule, we rarely use them). On the other hand, if you buy additional wallpaper, you can get into a mess. After all, the shade of the wallpaper cloth sometimes differs from batch to batch.
So the question for rational owners is how much wallpaper needs to be bought so that there is enough for pasting, and there are no extra meters left.
It is more than simple to work with the program, the calculation formula is intuitive, it is enough to indicate the size 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 many wallpapers 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 it is difficult, 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 is shifted on the wallpaper. Usually, this value is indicated on the roll. The required strip length will increase by the same amount.
- the height of the room is indicated with a margin of 5 cm... This is necessary in order to avoid a shortage of the length of a strip of wallpaper with a difference in height and a margin for a beautiful cut.
Please note that windows and doors are not subtracted from the perimeter of the walls. their location affects the order of gluing the wallpaper. If necessary, you can do it yourself. Material prepared for the site www.site
Wallpaper table - calculation of wallpaper consumption according to the scheme
In addition to the calculator, a method is used - the calculation of 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 received.
Table number 1 - calculation of the number of rolls of wallpaper with a width of half a meter
Roll width half a meter (0.52 cm) and a length of 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 wallpaper 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.
Wallpaper calculator for a room
Below there is a program - an online wallpaper calculator that will help determine the consumption of wallpaper: paper, vinyl, non-woven, textile and fiberglass.
Despite the fact that the range of materials for the repair and decoration of houses and apartments is replenished with one or another novelty almost every year, wallpaper does not give up its "leadership position" and still remains, probably, the most popular way of decorating walls in residential premises. Moreover, the widest variety of modern wallpaper, made using the most advanced technologies, allows you to finish in any interior style, faithfully imitate wall cladding with many natural materials. And if we add here the relatively low cost and the ability to independently carry out finishing work, then the popularity of wallpaper gets a completely logical explanation.
Before the homeowners who have decided in favor of such a finish, the question will surely arise - how to calculate how much wallpaper is needed for a room? We will try to help them with this - below is a handy online calculator.
Those readers who have already been involved in wallpapering and, therefore, are "grounded" in theory, should not have any problems with using the program. Newbies may have unclear questions - some explanations on the use of the calculator and on the basic principles of calculation are given below.