Wallpaper calculation is one of the main stages of preparatory work, which allows you to obtain data on the required amount of finishing material. This procedure should be approached with all responsibility, with an erroneous calculation, many problems will arise during the execution of wall cladding. There are several methods that allow you to get the correct result.
How to calculate wallpaper? It is necessary to resort to a phased implementation of actions, this will help to take into account all the nuances and get an accurate result. Many people think that determining how much wallpaper you need is simple. But in the end, important factors are missed, which leads to rather unpleasant consequences.
Determining the parameters of various wallpapers
It’s worth mentioning right away that without choosing a specific type of material, the calculation will be conditional. Therefore, work begins with the determination of the standard parameters of all available varieties, from which the final choice will be made.
So, there are the following sizes:
On a note! In order to calculate how much wallpaper is needed per room, it should be borne in mind that in addition to the standard length of 10.05 m, there are roll options with an indicator of 5, 8, 12 (15) and 18 meters.
Canvas fit
It may seem that knowing all the parameters, you can accurately determine the consumption of wallpaper. But it is quite difficult to imagine a situation where all the stripes are superimposed on the surface with absolute accuracy. In fact, there are a number of factors that affect the correctness of the calculation:
All stages of the calculation are taken into account without fail, this helps to avoid annoying and ridiculous mistakes.
On the standard marking there are several designations related to the fit of the pattern, they directly relate to the number of rolls
A logical question arises: why determine exactly how much wallpaper you need per room? Indeed, if you purchase material with a sufficient margin, then absolutely exact parameters are not needed, but there are situations when expensive products are used in the work or financial possibilities are limited.
On a note! It seems to many that in case of a shortage of material it is better to buy it in addition - this opinion is erroneous. The fact is that when using different batches of goods, the appearance of a different tone is almost guaranteed.
There are many shades of the color spectrum and you should not expect that in another batch of wallpaper the palette will match 100% Determination of room parameters
Based on the available parameters, it is possible to calculate the wallpaper for the room with the greatest accuracy.
Calculation formulas
There are two main ways to determine how much wallpaper you need per room, each of which has advantages and disadvantages.
Perimeter calculation
Basically, the formula is quite simple:
- The perimeter of the room is determined.
- The length of the strip is calculated. To do this, a small margin is added to the height and, if necessary, rapport.
- Next, count the number of lanes. To do this, the perimeter is divided by the width of the roll of selected material.
- Then you need to calculate how many strips are included in one roll. To do this, the total length of the roll is divided by the height of the web, taking into account all allowances.
- It remains only to determine the number of wallpaper rolls per room.
Knowing the width of the roll, you can roughly calculate the amount of material per room Area calculation
- The area of the room is determined. From these data, a specific volume is calculated, which will be subjected to finishing.
- The area of the selected type of material is calculated taking into account one roll.
- The quantity of required products is calculated.
On a note! This method allows you to get more correct indicators, but it does not take into account the characteristics of the room. Therefore, it is often worth adding some margin.
Theoretically, when calculating the area of \u200b\u200bwalls, you need to subtract the area of \u200b\u200bwindows and doors, but in reality it is better not to do this, since a margin is needed
Calculation examples
For convenience, several examples can be given that allow you to calculate how much material is needed, depending on the method chosen.
Room of 12 sq. m
Since the total area is 12 m2, it means that the room has a length of 3 meters and a width of 4 m. The ceiling height is 2.5 m. Thus, it is necessary to determine how many rolls of wallpaper will be required:
- Room perimeter: 3+4+3+4 = 14 m + 5% = 14.7 m.
- You need to calculate the number of stripes depending on the type of material. In this case, a standard size of 53 * 1005 cm is used. Then, with a height of 250 cm, taking into account the margin and rapport, 260 cm is conditionally obtained.
- Based on the fact that the width of the product is 53 cm, and the perimeter of the room is 1470 cm: 1470/53 = 27.7, that is, 28 stripes.
- There are 3.8 strips in one roll, which is obtained if 1005 is divided by 260. But only the integer value is taken into account, 3 segments will go to continuous gluing, and the rest will go to areas above and below the openings.
- Thus, for a room of 12 m2 you will need: 28/3 = 9.3. Which is 9 rolls, 0.3 is surplus.
If you calculate the consumption, it turns out that there is a lot of excess material, so it is recommended to choose products of a different length.
Room 20 sq. m
- The area is calculated from the calculation: 4 * 5, the perimeter is: 4 + 5 + 4 + 5 + 5% ≈ 19 m. And the ceiling height and margin - 235 cm.
- The material is selected in size 106*1005.
- Required number of lanes: 1900 (19 m) / 106 = 17.9. You can round up to 18.
1005/235 = 4.2. That is, there are 4 strips in a roll. - Then 18/4 = 4.5. Thus, with a margin, exactly 5 rolls will be needed.
Naturally, the total amount of material depends on the type chosen.
Room of 18 sq. m
With this value, adjacent walls will be 4.5 and 4 meters. Ceiling height - 3.2 m. Therefore, the calculation of wallpaper for an area of 18 square meters. m is done like this:
- The wall area is calculated: 4.5 * 3.2 \u003d 14.4 and 4 * 3.3 \u003d 12.8.
- It must be taken into account that there are two opposite walls with approximately the same area, then 14.4 * 2 + 12.8 * 2 \u003d 54.4 m2 - the total area of \u200b\u200bthe walls.
- When choosing a product with parameters of 0.53 * 15 m, the roll area will be 7.95 m2.
- Then for a room of 18 m2 you will need: 54.4 / 7.95 = 6.8, which corresponds to 7 rolls of wallpaper. This figure already includes the required headroom, as openings have not been deducted.
Using a table to determine wallpaper consumption
To determine the amount of material required per wall, you can use or use a table that is easy to check the calculations.
The calculation according to the provided tables is made without taking into account the selection of the pattern. When purchasing wallpaper with a pattern, you need to consider that for every 6-7 rolls you need to take one extra. For example, for a room of 24 sq. m with a ceiling height of more than 2.5 m, 15 + 2 \u003d 17 rolls of wallpaper of a standard size will be required.
The readiness to make repairs in the room and refresh the appearance of the walls begins with the selection of materials for decoration. Most often update the walls of residential premises. This is a material that people of different incomes are happy to use in repairs, and each of them is satisfied with the choice.
Difficulties are possible not in determining the texture, quality and, but in calculating the material necessary for gluing. Therefore, each owner needs to know and be able to do it right, since the lack of wallpaper threatens to collapse, and its surplus is wasted savings.
There is no difficulty in calculations, so we arm ourselves with a notebook, a pen and remember the school geometry curriculum for grade 6, perhaps use an online calculator.
The formula for finding the area of a wall is: S walls = P rooms x H rooms, where
- S- the area of the rectangular surface of the wall;
- P- perimeter;
- H- height.
The measurement of the room must be approached with all responsibility, because the amount of money spent and the quality of the repair depend on them. Let's calculate:
- Length - 5.6 meters.
- Width - 3.2 meters.
First, we perform measurements (translate the centimeters obtained during the measurement into meters). For example, if the length of the room is 560 centimeters, then we consider 5.6 meters.
- Calculate the perimeter - it is equal to the sum of all sides.
P = (a + b) x 2, where a and b are the sides.
We find: (5.6 + 3.2) x2 = 17.9 meters. Perimeter P = 17.9 m.
- Calculate the perimeter - it is equal to the sum of all sides.
- We determine the height. From the highest point of the wall, plumb down to the lowest point of the wall. It turns out 2.5 meters. H = 2.5 m.
- According to the formula indicated earlier, we calculate the area of \u200b\u200bthe walls: S walls \u003d P rooms x H rooms S walls \u003d 17.9 x 2.5 \u003d 44.8 m 2 The area of all walls for pasting is 44.8 m 2.
- From the resulting number, it is necessary to subtract window, balcony blocks (if any) and doorways, since there is no need to glue wallpaper there.
We have one window in the room, the area of \u200b\u200bwhich is calculated according to the same scheme. It is equal to 1.8 m 2 (1.25m x 1.45m). Door surface - 1.36 m 2 (0.70 m x 1.95 m). The total area of surfaces not involved in gluing is 3.16 m 2. The net area is calculated as follows: 44.8 - 3.16 \u003d 41.6 m 2.
Attention
If the room has a non-standard size, a shape other than rectangular, the calculations should be made separately for each wall, and then add up the results.
How to determine the number of rolls needed?
The surface area for wallpapering has been calculated, now you need to determine the number of rolls. To do this, you must carefully study the labeling of the material. We will be interested in the dimensions of the roll and the location of the pattern.
The pattern on the wallpaper can be positioned in such a way that it does not affect the method of gluing, then no adjustment is required. But most often, a pattern offset is necessary, and this factor must be taken into account when buying.
No offset
So let's consider how to calculate the number of wallpaper rolls without offset, knowing the area of \u200b\u200bthe room. Recall the lessons of mathematics. We study the marking: the width of the canvas is 53 centimeters = 0.53 m, the length is 10 m. The area of \u200b\u200bone roll is 0.53 x 10 \u003d 5.3 m 2.
For our room, the calculation of the quantity will look like this:
Number of rolls = net S of walls: S of one roll,
or 41.6 m 2: 5.3 m 2 \u003d 7.8 or 8 rolls (since rounding is done up). It is better to buy one roll in reserve, in case the canvas deteriorates.
Offset
When performing repair work on gluing, it is not always necessary to deal with a simple geometric pattern that does not require displacement and adjustment. Most often, knowledge is required on the calculation of material with a complex pattern. The material for sticking with a pattern offset is calculated according to the same principle.
In the marking of the fabric, the manufacturer indicates the distance in centimeters required to fit the material (for example, 20 cm). The larger the picture, the higher the score. This means that in order to select a pattern, it is necessary to shift the canvas of each strip by 20 cm. Up to 0.6 m of material will go from each roll (since 4 strips at a room height of 2.5 m cannot be measured for wallpaper with an offset).
Thus, from one package we get 3 cuts of 2.5 m + 0.6 m. The remainder of a 10-meter piece will be at least 1.9 m.
Number of rolls with pattern matching = (number of rolls without matching x number of cuts without matching in one roll): number of cuts with matching pattern from one roll.
If for our room, the area of \u200b\u200bglued surface is 41.6 m 2, it is necessary to shift from each roll by 0.6 m, then instead of 8 needed to combine a complex pattern, 11 pieces will be required (8x4: 3 \u003d 10.6 or 11). Thus, if the wallpaper requires adjustment (in our case, 20 cm), then the amount that will be needed to repair the room is 11 pieces.
To calculate the wallpaper by area, you can use the online calculator.
We talked about how to customize the finishing material according to the pattern in, and information is collected on how to properly and economically glue wallpaper with a pattern
Calculation along the perimeter of the room and the number of stripes
There is one more method of calculating the amount of finishing coating: along the perimeter of the room and the number of stripes. The following data is required for calculations:
- the perimeter of the room;
- his high;
- wallpaper sizes.
Let's determine the number of cuts in 1 roll = length of one roll: length of one web (in our case it is 10 m: 2.5 m = 4 whole strips).
To determine the number of cuts for a room, we use known indicators- the width of the wallpaper and the perimeter of the room.
Number of cuts \u003d P room: roll width (we enter already known data for the sample - 17.9 m: 0.53 m \u003d 33).
Calculate the number of wallpaper rolls per room:
Number of rolls = number of cuts per room: number of cuts, i.e. 33:4 = 8.25.
There are windows and doors in each pasted room, so you can buy 8 pieces.
Calculation table
If all of the above calculation methods are complex, a table will help in calculating the finishing material. To use it, you need the key indicators discussed above: area (length times width) and height. The process of calculating wallpaper is time-consuming: you need to take into account many nuances, which in the end can be decisive.
No matter how carefully the calculation of the finishing material is made, the masters advise to purchase an additional one. This will be relevant in the case when the cut gets dirty or wrinkled during repair work, and it will be impossible to fix it. In an apartment where children live, an extra roll can come in handy for unplanned repairs.
Useful video
The article is accompanied by a visual video with calculations of the number of rolls per room:
In contact with
Everyone who is going to paste wallpaper in their apartment is faced with the same problem, how many rolls of wallpaper to buy so that there are not many, but just right?
This question is really important. After all, if you buy less rolls than necessary, you will have to run back to the store. Well, where is the guarantee that wallpapers of this color are still on sale, even if they are, it’s not a fact that they will be from the same batch as your wallpaper.
Wallpaper from different batches may vary in shade and therefore it is not recommended to paste wallpaper from different batches in the same room. Buying more rolls than you need is also not an option. This is especially true for expensive wallpapers. You are unlikely to have to use this stock, they will gather dust wherever they are on the mezzanine and the money will be wasted.
Consider the calculation on an example
Let's say we need to paste over a room with a size of 3x5 m and a ceiling height of 2.5 m with wallpaper 53 cm wide and a roll length of 10 m.
- First of all, we calculate the perimeter of the room: 3+3+5+5=16 m.
- Now we divide the perimeter of the room by the width of the wallpaper: 16: 0.53 = 30.2 rounded up to an integer, upwards, we get 31. This figure means that for pasting the room with wallpaper we need 31 wallpaper sheets.
- The next step is to calculate the total length of the wallpaper. To do this, we multiply the total number of canvases by the height of the room (the height of the room is 2.5 cm, we need to add another 10-15 cm to this figure for allowances): 31 * 2.65 = 82.15. We round up to a whole and get the required number of linear meters of wallpaper-83.
- It remains to make the last calculation to determine the number of rolls. To do this, divide the total footage of wallpaper by the number of wallpapers in a roll (usually wallpaper in a roll of 10 m): 83:10 = 8.3. We round up, we get the number 9. So for pasting a 3X5 room, we need 9 rolls of wallpaper.
Wallpaper Calculator allows you to calculate the amount of wallpaper when finishing the entire room and certain walls separately, which can be useful in non-standard rooms with 5 or more walls or in cases where you plan to use different types of textures. The program allows you to take into account the repetition of the pattern (rapport), side overlay, the presence of door and window openings, correctly calculating the surface area of the application, which in turn allows you to optimize the consumption of wallpaper and wallpaper glue, as well as eliminate overpayment for unnecessary materials.
In the application, you can get acquainted with the normative values \u200b\u200bof glue consumption - you can immediately “estimate” how much wallpaper glue is required.
Calculation principle
There are two fundamentally different calculations of wallpaper per room - by area and by turning the roll onto the wall. The disadvantage of the first method is that the wallpaper area is calculated as one continuous roll, i.e. when pasting, the roll may end in the middle of the wall and, accordingly, a seam will appear. The second method implies that if the remaining length of the roll is less than the height of the ceiling, a new roll is taken, and the remains of the old one are used for smaller elements, for example, under a window.
The wallpaper calculator uses last option, since it is the most rational, although it slightly increases consumption.
A little more detail should be given to the calculation method itself. For example, the simplest case is when the wall of the room from top to bottom is a solid surface (1). In fact, we kind of roll out roll after roll along the height of the wall. Another option is when the opening completely (2) or partially (3) overlaps the roll. In the first case, a whole rapport is added to the segment, and in the second, a whole strip is taken, but the pasting area decreases accordingly.
Instruction
For the first option:
- ceiling height, m;
- width and length of the room, m;
For the second option:
- ceiling height, m;
- wall length, m;
- number of walls, pcs.
As an additional condition, you can use the "Windows" and "Doors" blocks. With their help, when calculating the wallpaper, the areas that will be occupied by the corresponding structures are taken into account and / or excluded.
The tool calculates wallpapers equally correctly in situations where canvas in whole or in part enters the opening.
Also, if you have other places where wallpaper is not expected, for example, an interior window between the living room and kitchen or a furniture set, allowed use of the fields "Windows", "Doors" and for these purposes.
Then you need to fill in the characteristics related directly to the wallpaper:
- roll width, cm;
- roll length, m;
- rapport (repetition of drawing), cm;
- margin for leveling, cm;
- overlay on the side, cm;
- whether to move the drawing;
- Cost, rub.
Let's take a look at some of the steps in more detail.
rapport- this is a repeating part of the pattern, or otherwise, a parameter that shows the cyclical repetition of the pattern in height and / or width. The value is indicated directly on the roll and is measured in centimeters. If you have wallpaper without a picture, then enter "0" in the field.
Margin for leveling(cutting)- additional value for each sweep of the web for cutting in case of horizontal unevenness of ceilings / floors. The optimal value is 5-15 cm.
Side overlay- means partial overlapping of one roll with another, the so-called "overlapping" pasting technology.
Move drawing- pattern shift by 0.5 rapport. In fact, it leads to an increase in wallpaper consumption.
Use the convenient website wallpaper calculator and you will no longer have questions - how to calculate the number of wallpapers per room?
Table for calculating wallpaper by room area
In some cases, when calculating wallpaper for a room, it is more convenient for the user to use normative tables to obtain an approximate result. We offer you an option that involves the calculation through the area and height of the room.
Wallpaper with a roll width of 53 cm and a length of 10 m (standard)
Ceiling height up to 2.5 m | Ceiling height 2.6-3 m |
||
Room area, m 2 | Number of rolls, pcs | Room area, m 2 | Number of rolls, pcs |
Wallpaper with a roll width of 70 cm and a length of 10 m (European)
Ceiling height up to 2.5 m | Ceiling height 2.6-3 m |
||
Room area, m 2 | Number of rolls, pcs | Room area, m 2 | Number of rolls, pcs |
Wallpaper with a roll width of 106 cm and a length of 10 m (meter)
Ceiling height up to 2.5 m | Ceiling height 2.6-3 m |
||
Room area, m 2 | Number of rolls, pcs | Room area, m 2 | Number of rolls, pcs |
Wallpaper glue consumption table
Unfortunately, our online calculator currently only shows the area that will need to be treated with glue, but does not provide actual consumption data. For the convenience of visitors, we have collected reference data of the most popular types of products on the market and combined them into a table so that you can immediately "estimate" how much wallpaper glue you need.
Name | Net weight, g | Type of wallpaper | Application area, m 2 (number of rolls) |
Paper | 5 rolls |
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Vinyl | 5 rolls |
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non-woven | 25 m 2 (6 rolls) |
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Glass fiber | 25 m 2 (6 rolls) |
||
For all types of heavy wallpaper | 50 m2 (10 rolls) |
||
Paper | 20-25 m2 (4-5 rolls) |
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15-20 m2 (3-4 duplex rolls) |
|||
Vinyl | 35-45 m2 (7-9 rolls of light wallpaper) |
||
25-35 m 2 (5-7 rolls of heavy wallpaper) |
|||
Glass fiber | |||
non-woven | |||
Vinyl | |||
special wallpaper | |||
Padding | |||
Glass fiber | |||
Any heavy wallpaper | |||
Padding | |||
Wall mural | 12-15 m2 (duplex) |
||
6-8 m 2 (non-woven) |
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;
- FROM: 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 be 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 don't want to mess around with the docking, it's better to choose 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 straight 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
The 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.
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