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 total area it is necessary to subtract the area of \u200b\u200bthe 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.
Wallpaper calculation important preparatory stage at the stage of purchase, when it is necessary to know exactly how many rolls to buy. It is better to calculate the wallpaper in advance, having previously known the width and length of the desired wallpaper, as well as the presence of rapport and pattern shift. rapport is the distance between separate elements drawing, i.e. their repetition, parts of which are joined between the canvases.
Wallpaper Calculator
Below is handy wallpaper calculator, to calculate the required quantity. The result obtained takes into account the rapport of the wallpaper and the displacement of the pattern. Additionally, you can check the calculation of the number of wallpapers per room using the method described in this section.
Room options:
Room width meters
Room length meters
Room perimeter meters
Room height meters
Wallpaper options:
Wallpaper roll length meters
Wallpaper Roll Width centimeters!
pattern rapport centimeters
(repetition of the pattern in height: the larger the pattern, the greater the margin)
Shifted pattern
Leveling margin 10 cm 15 cm
Calculation result:
Necessary wallpaper rolls
Necessary running meters wallpaper
All necessary information to calculate wallpaper for a room, you can get it on the wallpaper packaging, where the length and width of the roll, as well as the rapport and offset of the pattern, will be indicated. This wallpaper calculator will help you plan and calculate how many wallpapers to buy. You can double-check the wallpaper calculator yourself using the self-calculation of wallpaper for a room, which is offered on this page.
You can get all the necessary information for the calculation on the packaging of the wallpaper, which will indicate the length and width of the roll, as well as the rapport and offset of the pattern. This wallpaper calculator will help you plan and calculate how many wallpapers to buy. You can double-check the wallpaper calculator yourself using the self-calculation of wallpaper for a room, which is offered on this page.
Calculating the number of wallpapers will protect you from further purchase of rolls or vice versa the cost of extra wallpaper. Everyone can calculate the wallpaper, for this you can use our wallpaper calculator for calculation, or use the instructions below on how to independently calculate the number of rolls per room. Both options are reduced to a single principle. When measuring the parameters of a room, doors and windows should be taken into account only in cases where they occupy a significant amount of the total area. To do this, in the wallpaper calculator, set the perimeter yourself, after subtracting a few meters from it, which are compensated by the presence of windows and a door. But it is better to calculate the wallpaper with a margin.
Calculation of the number of wallpapers per room
Consider an example of calculating the number of wallpapers per room, which are sold by linear meters with a certain width of the canvas, in other words, standard wallpaper rolls. Take for example the dimensions of the room 4 x 7 meters, the ceiling height is 3 meters. Wallpaper 70 cm wide (0.7 m), pattern repeat 45 cm (straight pattern).
First, we need to divide the perimeter of the room by the width of the wallpaper to find out the number of paintings: (4 + 7) x 2 / 0.7m = 31.43. We round and get 32 canvases. Next, we calculate the height of the canvas, taking into account the pattern repeat. It is necessary to add 10 cm to the height of the room - a margin for leveling the edges, i.e. 3 + 0.1 = 3.1m. We divide the resulting height by the rapport value: 3.1 / 0.45 = 6.89. Rounding, we get 7 repetitions of the pattern on one canvas. We multiply this number by the rapport value 7 x 0.45 \u003d 3.15 - the new height, taking into account the rapport.
Having learned the new height, we multiply it by the number of canvases and get the required number of linear meters for this room: 3.15 x 32 = 101 running meters.
If the pattern is shifted, then add another 1/2 of the pattern alignment value to the resulting height (for example, if the rapport is 45 cm "shifted pattern", then the height of the canvas should be 315 cm + 22.5 cm = 337.5 cm).
Since our wallpapers are sold in rolls, we divide its length (for example, 10.5 m) by the new height and get the number of sheets from one roll: 10.5 / 3.375 = 3.11 Rounded down, we get 3 sheets from a roll. Then we divide the total number of canvases required by the number of strips from one roll, and we get the number of rolls we need: 32 canvases / 3 \u003d 10.67. Rounding up we get 11 rolls. Thus, any calculation of the wallpaper for the room is made.
After calculating the wallpaper and directly choosing, you will also need information on preparing the wall for gluing, as well as the instructions for gluing itself.
No online calculator will help you correctly calculate the consumption of wallpaper for a room. irregular shape. 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 the 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. We take a margin for cutting wallpaper 10 cm. When we add these indicators, we get design height canvases: 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. We divide the perimeter of the room by the width of the roll, round the result up, and so we find out the number of canvases needed to paste over 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 current repair worn or stained areas on the walls.
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 look. 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 footage of the wallpaper 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 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 no less 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 room parameters, it is necessary to without fail consider 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 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 a good sales assistant at a hardware store.
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. In the presence of 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, the wallpaper should be calculated 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 it can be problematic to buy the missing piece in the future, 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
Let's take a look at the calculation liquid wallpaper. The main difference from other variations is total absence 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 structural elements. Applying a substance to an uneven substrate may result in additional expense- 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.
