How to calculate how much wallpaper you need per room. Calculation of wallpaper for the room. Required tools. Taking measurements and counting. How to calculate the required number of rolls
During the repair, the decoration of the premises becomes the main priority, in fact, everything is started for this, but before purchasing materials, you need an accurate calculation of wallpaper for the room. How it is done - we will consider further.
Where does the calculation of wallpaper for a room begin?
What is most interesting, there is no need to immediately grab the rolls and find out how many running and square meters of paper, non-woven, vinyl or fiberglass are in them. To begin with, we find out the area of \u200b\u200bthe room that we will paste over. Of course, we leave the floors without attention, we are more interested in the walls and, possibly, the ceiling, if you want to decorate it for the company. Before calculating the number of wallpapers per room, we take a tape measure and measure the perimeter of the room, it is advisable to do this 2 times, along the plinth and under the very ceiling. A slight curvature of the walls can give a significant discrepancy in the results, but then you will know what error will need to be added to the calculations or, conversely, subtracted from them.
Let's say, below, near the floor, the perimeter turned out to be 8 meters, 2 for each wall, a perfect square. But at the top, the corresponding figures are somewhat smaller, all sides of the above geometric figure are 5 centimeters shorter. It turns out that the room in volume is not a cube, but a kind of prism or truncated pyramid, except that the slope of the vertical planes is very slight. Nevertheless, it is already possible to imagine how in the corners applied at the top they will deviate downward from the general pattern. Conclusion? It will be necessary to glue across, that is, by applying cuts of material horizontally. As you can see, having learned only the perimeter and geometry of the room, we also found out the most effective way of finishing.
Further is quite simple. We know the height and length of the wall, we substitute the values \u200b\u200bin the formula S = a. b, where a and b- the sides of the rectangle, which (sometimes rather conditionally) are the wall or ceiling. Then we measure windows and doors, substitute new results into the same formula and determine the square of openings that do not require finishing at all. We subtract the result obtained from the area of \u200b\u200bthe walls, and here we have the number from which the calculation of wallpaper per room always begins, indicating how many square meters are to be pasted.
How to calculate wallpaper based on rapport
So, the whole room has been measured, the data has been recorded, it remains to determine how much material will be needed for the upcoming work. If you have not yet had time to peel off the old finish, try to correlate the width of the cuts once pasted with the wallpaper that is sold today in the store. The sizes may well coincide, and then it remains only to count the number of strips to find out how many panels will go to the room. Knowing the footage of each individual roll (usually it is written on the back or on the packaging), it is not difficult to calculate how many pieces you need to buy.
However, it may well turn out that the rapport does not match between old and new wallpapers, or, in other words, a repeating pattern printed on the surface with a certain step. Firstly, the difference may be in the size of the pattern, and secondly, it is quite rare for different series to have the same distance between images. If the store you went to for materials is branded, and there is a professional behind the counter, you can ask him about the rapport step, however, if you did not receive an answer to this question, you need to figure out how to calculate the wallpaper yourself. Typically, the distance between the centers of the impressions corresponds to 52-53 centimeters. Ideally, the height of the wall should be divisible by this number without a trace or with small decimals, otherwise waste will appear during the work.
Let's take a situation as an example. Let's say the height of the wall is 3 meters, let's see how many rapports fit from floor to ceiling. The formula will look like this n = H/j, where n- the number of drawings, H is the height of the room, and j- step between prints. Substituting the data we have, we get 300/52 = 5.76, which is more convenient to round up to 6 rapports. However, 6 . 52 = 312, that is, in any case, at least 12 centimeters will be cut off from the wallpaper strip. Why cut? The thing is that in order to match the pattern on adjacent strips, you need to shift them relative to each other, and waste is inevitable. Therefore, if the pattern allows (not oriented strictly vertically), it is better to glue strips with a large step between images horizontally.
Usually, when the strips are shifted, half a step is cut off between rapports, therefore, the greater the distance separating the prints, the wider the piece sent to waste.
How to calculate wallpaper rolls, knowing the area of \u200b\u200bthe walls
Having gathered to paste over the room, some owners quickly make calculations of the upcoming front of work on the length, width and height of the room, after which they go to the store with peace of mind. And then it turns out that the wallpaper is not enough. The reason for this is often an incorrect calculation, with a room height of 3 meters, and a width and length of 2 and 3, respectively, having the form of 3. 2. 3 = 18, but what? That's right, cubic meters, that is, this is the volume of the room, which we do not need. And if we take the perimeter as a basis and multiply it by the height, the same numbers will give a different result: (2. (3 + 2)) . 3 = 30. Do you see the difference? Not knowing how to calculate wallpaper rolls, you can buy them not for 30 real square meters (albeit excluding window and door openings), but for 18 imaginary ones, that is, 12 squares will be missing, and this is at least 2 rolls.
By the way, how to calculate how many packages you need without knowing how many meters in a rolled strip of paper, vinyl, non-woven or bamboo fiber? Let's find out what the options are. If you have an apartment 3 meters high, and you are going entirely, from floor to ceiling, it is most convenient, of course, to buy rolls of 18 or 12 meters. However, there are also shorter ones, designed for low-ceiling apartments - 10 and 7 running meters. It is better to take the first of them, if you take into account the plinth and the curb along the upper edge of the wall, then the cut will not be 2.64 (the standard height of panel houses), but 2.5 meters. The second type of rolls is very convenient for Khrushchev, in which the distance from floor to ceiling is only 2.48 meters, in this case it will be enough to divide the strip into cuts of 2.3.
Now let's move on to how to calculate how much wallpaper is needed for pasting a room. When buying, it is more convenient to count in rolls, therefore, knowing the area of \u200b\u200bthe walls (and the ceiling, if the finish is provided for it), it will not be difficult for you to perform the necessary calculations right in the store. Since the dimensions of the wallpaper are written directly on the roll, you can immediately determine the area of \u200b\u200bone panel. Next, we divide the quadrature of the walls to be glued by the result obtained (minus window and door openings) and get the required number of rolls. Consider this in the table using the example of a ten-meter strip, the width of which is half a meter.
Roll size: 10.05 m × 0.53 m = 5.3 m 2 .
| Room perimeter, m | Wall height 2.0–2.4 m | Wall height 2.4–3.3 m |
| Number of rolls, pcs. | ||
| 6 | 3 | 4 |
| 10 | 5 | 7 |
| 12 | 6 | 8 |
| 14 | 7 | 10 |
| 16 | 8 | 11 |
| 18 | 9 | 12 |
| 20 | 10 | 14 |
| 22 | 11 | 15 |
| 24 | 12 | 16 |
| 26 | 13 | 18 |
| 28 | 14 | 19 |
| 30 | 15 | 20 |
Depending on the standard sizes of the wallpaper, the data laid out in the table will change, so only the principle of calculation should be taken as a basis.
Wallpapering - requires care and competent preparation. It is about determining the number of wallpapers that will be required for work. This is where the difficulty arises, since not everyone is able to carry out the calculations on their own.
But in fact, there is nothing super complicated in this procedure. It is important to take correct measurements for several parameters and take into account a number of additional factors. Let's talk about how to perform calculations, what to pay close attention to.
Calculation of wallpaper for a room - correctly and effortlessly
The variant with carrying out calculations seems expedient. There are many online calculators on the Internet, through which you can perform all the required operations. But you should not trust them too much - it is impossible to take into account all the nuances there. Manual calculations are more accurate and are preferred.
Calculation of rolls by room area:
Perform them in this order:
- Measurements of the parameters of the required premises. To do this, determine the length of the room, its width and height. If there is a false ceiling or skirting boards, their dimensions are not taken into account. You should be extremely careful with measurements of gaps above window and door openings, niches and ledges. Subject to the combination of wallpaper or inserts in them, you should initially consider the scheme of work and then proceed to measurements;
- If you carry out calculations along the perimeter, then you need to multiply the width with the height, and then multiply the resulting value by 2. For example, length = 6 m, width = 4 m, add the values \u200b\u200band multiply them by 2, we end up with 20 m. Take for example meter wallpaper - with a roll length of 10 m and a width of 1 m, 20 strips will be needed;
- Calculations by area involve multiplying the sum of the width with the length by the height of the room, followed by multiplying the total by 2. That is, (4 + 6x2.5) x2 = 50 sq.m. A roll 1 m wide and 10 m long has an area of 10 sq.m. It follows that the number of rolls is 50/10=5 pieces.
When choosing wallpaper, remember that models with a pattern require taking into account the displacement of the canvas. The offset is equal to the height of the gap that exists between the repeating elements. Information about this can be found on the markings on the packaging of the rolls, or you can measure it yourself.
Calculation for one wall
After the main measurements have been taken, the need for the total amount of material has been determined, it is necessary to calculate the wallpaper for one wall. The algorithm of actions is no different from the one that was described. The difference is that one wall with all its protrusions, niches and other structural elements is taken as the basis.
The calculations themselves can be carried out both along the area and along the perimeter. There is no special significance - the main thing is to correctly carry out all the measurements.
How to calculate the required footage
Well, it remains to figure out how to calculate the footage of the wallpaper, that is, the total length of the coating that will be required for work. The process is not particularly difficult, and even the user for whom wallpapering is an unusual curiosity, and not a familiar process, can easily cope with it.
The calculation table includes little - the height of the room, and, accordingly, the length of the strip, as well as the total number of stripes around the perimeter of the room. By multiplying the values, minus windows, doors and other things, you can get the footage that will be needed during work.
How to calculate the number of rolls
The length of one canvas is known, we calculated the number of canvases that is required. It remains only to divide the footage of the required wallpaper by the number of paintings that can accommodate one roll. So we find out how many rolls will be required.
For example, 20 canvases are needed per room, the length of the canvas reaches 2.5 m, the length of one roll is 10 m. It turns out that one roll can accommodate 4 canvases. It follows that 5 rolls will be required for all the gluing work.
When answering the question of how many rolls you need, you need to remember to buy an additional one, in reserve. The fact is that in the process of work, emergency situations arise. No one is safe from marriage. And buying the missing piece in the future can be problematic, since wallpapers even from the same series can have differences in shades.
It must be remembered that over time, abrasion of the canvas, its contamination or mechanical damage is possible. Here it is simply impossible to do without gluing a new canvas.
How to calculate liquid wallpaper
We will also consider the issue of calculating liquid wallpaper. The main difference from other variations is the complete absence of seams. Thanks to this, it is possible to form a holistic and logically complete coating with excellent aesthetics.
The formula of the material is characterized by its safety and environmental friendliness, which makes it possible to use this type of finish with virtually no restrictions. It is only necessary to correctly determine the number of packages that will be required to cover the planned area of \u200b\u200bthe room.
Information about this is available on each package. Often the consumption varies within 3-5 sq.m. on a flat surface. We take the average value of 4 sq.m. we determine that for an area of 50 square meters, approximately 12.5 packages (50/4) will be required. Liquid wallpaper should be purchased with a margin, about 1-3 packages per room, depending on the size and complexity of the structural elements. Applying a substance to an uneven base may entail additional costs - you should prepare for this in advance.
As you can see, nothing super complicated. You just need to be careful and careful, remembering that even a minor mistake can have serious consequences. Do not rush if you are doing this procedure for the first time. It is much easier to double-check once again than to subsequently “puzzle” your head about where to find the missing couple of meters of wallpaper. Remember - even seemingly insignificant details should be taken into account. Successful calculations and apartment renovation.
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 choose the wallpaper to know its length and width and to 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.
Wall-paper - convenient modern finishing material. It is especially in demand in the renovation of apartments, where the quality of the walls leaves much to be desired. This finish is usually done on rough plaster, which saves the family budget. Gluing them is a simple task that even a beginner can handle. But how to correctly calculate the number of wallpapers per room?
There are many calculators on the Internet that help you calculate the required number of wallpapers. However, these calculations should not be taken as a basis: the value errors may be large enough. This is due to the fact that three parameters are set - width height length rooms. At the same time, protrusions and niches are rarely taken into account.
Therefore, it is best to calculate it yourself using a calculator, armed with a plan of rooms. On the plan, it is also necessary to note the recesses in the wall, if they are also pasted over with the same material. When combining several types of material, a plan is drawn up where which section will be located, and the number of wallpapers for each of them is calculated.
room perimeter
First of all, find out perimeter rooms - add the length and width, multiply the sum by 2. Example: in a rectangular room with walls of 1.5 and 3.5 m, the perimeter is: (1.5+3.5)x2=10 m.
If there are niches and ledges in the room being repaired, increases are made. Then they think differently, since opposite walls can be of different lengths. In this case, each wall is measured separately, and then the resulting numbers are added up. It is necessary to take into account both protrusions and recesses.
The photo above shows several complex shapes - let it be a plan for non-standard rooms. The perimeter of each of them is found as follows:
- BUT: 4+3+4+3+(1+1)x4=22;
- AT: 6+2+6+8+16+4+4=46;
- With: 10+8+14+4+2+8+6+4=56.
How to find out how many canvases you need for gluing
Finding out how many canvases you need for gluing is easy. To do this, you need to look at the width of the roll on the label. Standard - 53 or 100 cm. Then the perimeter of the room is divided by this width. If the division gave a remainder, then increase this amount by one more.
For example, the perimeter of a room, as in the example above, is 22 m. Divide this number by 53 cm. The result of 41.5 is rounded up to 42 .
How many pieces can be obtained from a roll
To answer this question, you need to know the height of the walls. In most apartments of apartment buildings, it is 2.3 meters. But to know the exact figure, you need to take measurements in different places. The indicators may differ slightly, and sometimes the differences reach 5 cm. Take a large value as a basis.
Then the length of the roll is divided by the resulting figure. Yes, at height 2.3 m one roll can be divided into 4 parts, but if you don't need to customize the pattern. If the number turned out with a remainder, then rounding down is carried out. For example, ceiling height 3.2 m. If a 10 m Divide by 3.2 to get 3 with a remainder of 0.4. This means that three canvases will be obtained from one roll and there will be a waste of length 40 cm.
Attention! Do not throw away small pieces of wallpaper. They are used for small areas - for example, above windows.
Calculation of rolls for one room
To find out how much material needs to be purchased for one room, the number of paintings is divided by the number of full-fledged strips.
Table 1. Calculator of the number of wallpapers for rooms of different sizes with a roll.
| Height, m | Perimeter, m | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18-19 | 20 | |
| Roll width 53 cm, length 10 m | ||||||||||
| Up to 2.4 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 | 10 |
| From 2.4 | 7 | 7 | 8 | 9 | 9 | 10 | 11 | 11 | 12 | 13 |
| Roll width 53 cm, length 15 m | ||||||||||
| Up to 2.4 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 7 |
| From 2.4 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 | 9 |
| Roll width 106 cm, length 10 m | ||||||||||
| Up to 2.4 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 5 |
| From 2.4 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 6 | 7 | 7 |
Wallpapering on the ceiling
Often the design of the room involves wallpapering on the ceiling. This tradition is dying out. This is partly due to the fact that pasting a vertical wall is not very convenient. Yes, and the possibility of flooding by neighbors from above is not ruled out, after which it will be necessary to make repairs. Therefore, suspended structures are becoming more and more popular, which perform not only a decorative function, but also help to hide communications. Often the floors are simply covered with white paint.
But if, nevertheless, there was a need to decorate the ceiling part of the room, then the material must also be calculated. First calculate the area of the ceiling. For example, in a regular-shaped room with walls 4x5 cm area will be equal to 20 m2. Then find out the area of the roll, multiplying the width by the length. So, the area of the roll length 10 m and width 0.53 m will 5.3 m2. This means that 4 packs are required for the ceiling. If the ceiling has protrusions, then this area must also be taken into account. Calculate its dimensions in the same way, and add to the main result.
Prices for various types of suspended ceilings
Dropped ceilings
Window and door openings
However, professionals do not recommend being greedy. This difference will not give significant savings. However, some stock of material in any case does not hurt. Home craftsmen, especially beginners in repairs, often make mistakes. And, perhaps, this surplus will help to avoid buying an additional roll.
Furniture
Often, a room is furnished with massive headsets that are difficult to move, and a radical renovation of the interior is not expected in the near future. In such cases, from the total perimeter, it is worth subtracting the area of \u200b\u200bthe wall occupied by an ordinary wardrobe, compartment or shelving.
But if in the room part of the wall is occupied by a small closet, which you also don’t want to move, then this area should still be included in the total footage. As in the case of windows and doors, this will be a safety stock in case of failure.
Attention! If the furniture hides only part of the wall and does not reach the ceiling, then it is necessary to calculate the length of the segments that need to be glued on top. They must be such that at least 10 cm go behind the back wall of the cabinet.
The secrets of fitting the pattern on the wallpaper to save material
Almost always wallpaper comes with a pattern. If you want to have less tinkering with docking, it is better to prefer a material with a loose fit. This means that the pattern on the panels is completely absent or does not need to be customized. Examples of this design are stripes, small peas, flowers, dots, etc.
There are such concepts as direct and offset fitting, in which the material consumption increases slightly.
A direct fit is a precise alignment with the pattern of the previous pasted strip. In order for the ornament to match, each next strip is moved towards the ceiling until the elements on the seam form a complete picture of the ornament. The height of the repeating part (it is called rapport) is indicated on the label.
Another way to fit is offset. This method is used for large images on the finishing material. Such wallpapers are the least convenient, since their use is fraught with high consumption. After all, in order for the wall to look neat and aesthetically pleasing, each next canvas is cut out so that it turns out to be half a report longer than the previous one. On the label, the manufacturer reports the largest waste from the piece. This information is given as a fractional number - for example, 64/32 . This means that the value of the rapport 64 cm, and the travel length - 32 cm.
Attention! Before buying, you must study all the relevant signs on the packaging with the product.
How to calculate the wallpaper, if you need to fit the picture
Wallpaper with a complex pattern must be customized. Therefore, the calculation of such a finish is more difficult. In addition to linear measurements, the rapport height is taken into account. Calculations are carried out in the following sequence:
- Measure height one lane. This indicator is multiplied by the height of the rapport, and the resulting number is divided by the length of the roll. The number is rounded down to the smallest integer.
- Calculate number of rolls according to the method described above.
Attention! Be sure to take into account the rapport when gluing a finishing coating with a complex pattern. If this is not done, then at the end of the work it may turn out that you will have to buy 2-3 more rolls.
Another way to save on material is to glue the canvases not to the very ceiling, but indented 20-25 cm. This technique is effective in rooms with high walls, as it visually makes them a little lower. But for squat rooms, it is not suitable.
Video - Subtleties of wallpapering
How to save on wallpaper
One way to spend less wallpaper is use a large picture on only one wall. The rest can be painted or glued with plain materials. Another way - alternating zero offset canvases with bright, large prints.
And this is a real find for those who love drawings on the walls, especially large ones. To get the minimum amount of waste, you need to cut wallpaper from two or three rolls at once. That is, the first strip is taken from one, the second from the other, then the third roll is alternated or opened. Savings will be due to the fact that the pattern in the wallpaper is shifted during production. Therefore, using several streams at once, it is possible to reduce waste.
How to calculate the amount of liquid wallpaper
The material, which is also called silk plaster. It is based on cellulose, natural polymers. They combine the properties of three types of finishes at once - decorative plaster, roll wallpaper, paintwork materials. Unlike decorative plaster, the mixture does not contain sand and cement.
- cotton;
- silk;
- cellulose;
- silk-cellulose.
Reference! Silk-based products are considered the most durable, cotton-based products are the cheapest and last the least.
For independent use without the involvement of specialists, silk plaster is already tinted. There is also a category of products for professional use. It is a separate component that must be diluted and painted before finishing the wall.
The calculation of the amount of liquid wallpaper also depends on the size of the room. Therefore, before starting, it is necessary to make measurements, as described above.
Attention! The amount depends on the composition of the finishing material itself. So, the finer the fibers, the less material is required.
Consumption depends on how well the mixture is prepared, and on compliance with the application technology. One package is enough for 3-7 m2 surfaces. Consumption is indicated on the manufacturer's label.
Step-by-step instructions for preparing liquid wallpaper
Step 1. Water at room temperature is poured into the container - clean, without impurities. The amount of water per 1 package must be specified on the package, for different products the amount is different.
Step 2 Glitter is poured into the water (if it is used, it is usually purchased separately). Then shake the package with wallpaper and the contents are also poured into a container.
Step 3 The mixture is thoroughly mixed by hand, passing between the fingers. This will help to avoid the formation of lumps of glue and its dissolution.
Step 4 Withstand mixture 12 hours, and mix again.
Rules for mixing liquid wallpaper
Each package is mixed with water separately, regardless of how much mixture is required to finish the wall. Immediately prepare as many packages as needed to work with the wall from corner to corner.
You can not use only half of the package. The fact is that the dry components are distributed unevenly throughout the package. Therefore, it may turn out that there will be more glue on the bottom, less fibers, or vice versa. When the mixture is diluted, the glue will not be enough, and the wallpaper will not meet the characteristics stated by the manufacturer.
Prices for various types of liquid wallpaper
Liquid wallpaper
Video - Restoration of liquid wallpaper
At the same time, if there was a lot of wallpaper, they can be dried and then reused. When mixing some types of silk plaster, it is necessary to use a drill with a mixing attachment.
The technology of applying liquid wallpaper
The mixture is applied with a plastic float or trowel. They take small portions, the grater is applied to the wall at an angle 15°. Depending on the type of wallpaper, the thickness of the applied layer should be up to 2 mm.
Apply the resulting mass with a special gun. It allows you to save up to 40% finishing material. The design of the device provides for a lot into which the mixture is loaded. Under pressure, the material is sprayed onto the surface of the wall.
Reference! As you know, ordinary roll wallpaper during the drying period is afraid of drafts. However, when working with silk plaster, on the contrary, it is recommended to ventilate the room for the fastest drying of the finish.
Wall mural
The easiest way to buy wallpaper. Usually they are selected according to the size of the wall, which is going to be decorated in this way. However, it is important to note that some coatings are used not on one, but on two adjacent walls. Therefore, so that part of the drawing is not lost, it is necessary to carefully consider in which part of the room it will be used.
Attention! If ordinary wallpapers are also used, then you need to know the size of the former so that you can save on the latter.
In the form of photo wallpapers are:
- horizontal;
- vertical;
- square.
The canvas is often made up of several elements, the number of which can reach 20 or more.
If it turned out that the canvas is too large, then it is easy to cut it. But with a lack of width or height, empty sections of the wall can be filled with the main finishing material.
Prices for various types of photo wallpapers
Photo wallpaper
How many wallpapers to buy
Even if the number of wallpapers is calculated correctly, you need to buy at least one more roll in reserve. This is necessary for several reasons.
It is not always possible to stick a strip on the first try. The material may be damaged or soiled during operation. In addition, there may be a defect on the canvas that is not visible upon purchase, since the ribbons are rolled up and sealed in a film.
Many manufacturers produce limited collections, so in a year you will not be able to buy the same design. But even if the design is preserved, the shade of the dyes may differ slightly, and this will be noticeable on the wall.
As for liquid wallpaper, their consumption may increase due to uneven walls. Therefore, add to the total volume up to 20% from the base calculation.
Wallpapering walls is a quick and relatively cheap way to decorate rooms. Before heading to the hardware store, decide how much material you need for the 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 taken, what to look for when planning a purchase.
Calculation of wallpaper for a room: formula and instructions
Wallpaper you need to choose the right 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 up 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 \u003d 20 m. Then the height of the ceiling is found. Let's say it is 2.5m. With this height, one roll can be divided into four equal strips, since the standard length of a roll 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, the sum is rounded up to an even count and the number 10 is obtained. Thus, for a room with a perimeter of 20 m you will need 10 rolls of wallpaper. From the table below, you can find out how many rolls are required for a room with different ceiling heights and different perimeters.
| Ceiling height | Room perimeter, 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
Wallpaper with a pattern is calculated differently In order for fragments of a large pattern to match on adjacent panels, they are shifted 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.
Rapport (location of 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 combined panels. Therefore, for large-sized premises, it is advisable to buy more additional rolls. To save on the remaining waste, you can paste over inconspicuous places: under the battery, behind the 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 other size options: 17 m by 53 cm, 33.5 m by 53 cm and others. Below is a table to calculate them:
| 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 this when 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 ledges 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 adjacent strips docks evenly. In such cases, 1-2 additional rolls are required.
Calculation of wallpaper by room area
Another calculation method is the calculation of wallpaper according to 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 \u003d 25. We multiply the resulting amount by 2, since there are identical walls in the room 2, and 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 sq.m and there is the total area of the roll, it can be pasted over 5 sq.m of the room.
Wallpaper for walls with a border is calculated by the area of \u200b\u200bthe walls or along the perimeter
Modern designers have invented a finishing method in which not only the wall is pasted over with wallpaper, but also a border or decorative plinth. On sale there are special wallpapers, the pattern of which is suitable for such pasting. It is applied in such a way that its elements falling 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 various patterns at the bottom and top of the wall. And the border will serve as a divider for 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 lining 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, either 10 lower parts or 5 upper ones will be obtained. Those. the length of one roll is divided by the length of each part.
If you have difficulty calculating 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 windows are 1.5 m. Mathematically, it looks like this: (6 + 4) * 2 - (0.9 + 1.5) \u003d 17.6 m, which is the total perimeter of the room.
To calculate the lower part, we divide the roll into 10 strips 53 cm wide. 53/10 = 5.3 - the area that requires 1 roll of wallpaper. Then, we divide the perimeter by this figure: 17.6 / 5.3 \u003d 3.3. Thus, for facing the lower part of the room, 3-3.5 rolls will be required.
The upper part is calculated according to the same principle. It is known that 5 upper panels are obtained from 1 roll. One roll can cover 2.6 meters of wall. Perimeter - 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 we calculate the number of wallpapers by the area of \u200b\u200bthe walls. To do this, we conditionally take the upper and lower parts of one wall for different walls. The area of each of them is found by a well-known formula. Then we add the two resulting products and multiply by 4, according to the number of walls in the room.
Calculations for combined cladding
Not always cladding is limited to just wallpapering. Modern designers offer combined solutions for wall decoration. Either different types of materials, or wallpapers of different textures and colors can be used.
The material for such repairs is calculated individually for each case. For example, you are going to highlight with a bright insert some 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. Non-woven wallpaper for this will need 1 roll, since its width is 100 cm.
Can be combined with different finishes Wallpaper is a convenient and practical way of interior wall decoration, which has not lost its popularity over the years. In addition, if you need to update the repair without much cost and effort, you just need to stick another 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 the calculation of the required number, but also about the correct selection of consumables (glue, brushes).
You may have some wallpaper left, and then in case of minor damage to the surface, you can glue it, hiding the defects.
If you doubt that you can stick the wallpaper yourself, seek help from specialists.