Calculate the required number of wallpapers using a calculator. How to calculate the required amount of wallpaper. Prices for various types of photo wallpapers

How to find out how much wallpaper you need for a room? The quantity, of course, depends on the size of your room. To determine, required quantity trellis, we need to calculate the perimeter or area.

What is needed for this?

Firstly, this is a tape measure for measuring the room, secondly, a notebook or notepad to write down the measurement results, and finally, a calculator.

Calculation of wallpaper by room area and perimeter. A simple and clear table.

First you need to measure the length and height of the room where you are going to glue the wallpaper. It is also worth measuring door and window openings. This will help improve the calculation.

First you need to calculate the perimeter of the room:

P = (L of one wall + L of adjacent wall) * 2
P – perimeter;
L – length.

Estimated length of the web, how to calculate?

To accurately know the length of the wallpaper, you need to use the formula:

Estimated strip height = room height + ornament step (rapport) + allowance for upper and lower allowances (5 cm)

The work begins by measuring the width of the wallpaper strips you have chosen. After this, calculate how many stripes are needed to cover the room:

N stripes per room = P / wallpaper strip width

Counting from one roll.

Find out the length of the roll, which is indicated on the label. Then calculate using the formula:

N strips from 1 roll = L roll / calculated strip height

N – quantity.

Calculation of rolls of wallpaper per room.

After all the work done, we will find out how many rolls are needed to cover a room:

N rolls = N strips per room / N strips per roll

Calculation of wallpaper based on the area of ​​the room.

Since the calculation along the perimeter may not always be relevant, because the number of doors and windows is not included in the calculation, because of this the quantity is calculated by area.

We measure the area of ​​the walls using the following formula:

SO = L walls * H walls
S – area;
SO – total area;
H – height.

You also need to calculate the area of ​​the walls on which you will glue the wallpaper. But before that you need to calculate the amount of door and window openings. And then use this formula:

S wallpapering = SO - S windows and doors

If the roll fits the standard 53 cm width and 10 m length, it is designed for approximately 5 sq.m. rooms.

To calculate you need:

N rolls = S room / S that can be covered with 1 roll

Is there a pattern on your wallpaper?

If there is a pattern on your wallpaper, first of all you need to find out its report, and then calculate its final ceiling height and carry out the calculation along with it.

Using tables

In order to use the table, you need to know the perimeter and area of ​​the room. This determines which table you need to use.

Calculation by area, table:

To use this type of table, you must know the height and square footage of the room. And then you can easily find out required amount rolls

Table No. 1 53

Table No. 2 designed for wallpaper of equal width 70 centimeters and 10 meters long.

Table No. 3 designed for wallpaper of equal width 106 centimeters and 10 meters long.

Perimeter calculation, table:

To use the table below, you need to calculate the width of the stripes and the length of the wallpaper you have chosen. Then you need to measure the height of the ceiling and look at the table to see how many rolls you will need.

Roll size (strip width / roll length = pasting area): 0.53 m / 10.05 m = 5.33 sq.m

Roll size: 0.53 m / 15 m = 7.95 sq.m

Roll size 1.06 m /10.05 m = 10.65 sq.m

Wallpaper - comfortable modern finishing material. It is especially in demand in apartment renovations, where the quality of the walls leaves much to be desired. This finishing is usually done on rough plaster, which saves family budget. Work on gluing them - simple task, which even a beginner can handle. But how to correctly calculate the amount of wallpaper per room?

There are many calculators on the Internet that help you calculate the required amount of wallpaper. However, these calculations should not be taken as a basis: the value errors may be quite large. This is due to the fact that three parameters are specified - 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 room plan. The plan should also mark the recesses in the wall, if they will also be covered with the same material. When combining several types of material, they make a plan where which area will be located, and calculate the number of wallpapers for each of them.

Room perimeter

First of all, find out perimeter rooms - add the length and width, multiply the sum by 2. Example: in rectangular room with walls 1.5 and 3.5 m, the perimeter is: (1.5+3.5)x2=10 m.

If there are niches and projections in the room being renovated, allowances 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 figures - let this be a plan for non-standard rooms. The perimeter of each of them is found as follows:

• A: 4+3+4+3+(1+1)x4=22;
• IN: 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 are needed for gluing

Finding out how many canvases are needed 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 gives a remainder, then increase this amount by another unit.

For example, the perimeter of a room, as in the example described above, is 22 m. Divide this number by 53 cm. The result of 41.5 is rounded to 42 .

How many pieces can you get from a roll?

To answer this question, you need to know the height of the walls. In most apartments apartment buildings it amounts to 2.3 meters. But to know the exact indicator, you need to take measurements in different places. The indicators may differ slightly, and sometimes the differences reach 5 cm. A larger value is taken as a basis.

Then the length of the roll is divided by the resulting figure. Yes, at altitude 2.3 m one roll can be divided into 4 parts, but if you do not need to adjust the pattern. If the number has a remainder, then rounding is carried out downward. For example, ceiling height 3.2 m. If 10 m divided by 3.2, you get 3 with a remainder of 0.4. This means that from one roll you will get three sheets and there will be a waste of length 40 cm.

Attention! Do not throw away small pieces of wallpaper. They are used for small plots- for example, above the windows.

Calculation of rolls for one room

To find out how much material needs to be purchased for one room, the number of canvases is divided by the number of full strips.

Table 1. Calculator for the amount of wallpaper for rooms of different sizes per roll.

Wallpapering the ceiling

Often the design of a room involves gluing wallpaper to the ceiling. This tradition is becoming obsolete. This is partly due to the fact that pasting vertical wall not very comfortable. And the possibility of flooding by neighbors above cannot be ruled out, after which repairs will have to be made. Therefore, they are becoming more and more popular suspended structures, which perform not only a decorative function, but also help hide communications. Often the ceilings are simply covered with white paint.

But if there is still a need to decorate the ceiling part of the room, then you also need to calculate the material. First, calculate the area of ​​the ceiling. For example, in the room correct form with walls 4x5 cm the area will be equal 20 m2. Then find out the area of ​​the roll by multiplying the width by the length. So, the area of ​​the roll length is 10 m and width 0.53 m will 5.3 m2. This means that 4 packages will be required for the ceiling. If the ceiling has projections, then this area must also be taken into account. Its dimensions are calculated in the same way and added to the main result.

Prices for different types of suspended ceilings

Dropped ceilings

Window and door openings

However, professionals do not recommend being greedy. This difference will not make significant savings. At the same time, some supply of material will not hurt in any case. Home craftsmen, especially those new to repairs, often make mistakes. And perhaps this excess will help avoid buying an additional roll.

Furniture

Often the room is furnished with massive sets that are difficult to move, and a radical renovation of the interior is not expected in the near future. In such cases, it is worth subtracting the area of ​​the wall occupied from the total perimeter regular wardrobe, compartment or rack.

But if part of the wall in the room occupies small closet, which you also don’t want to move, then this area should still be included in the total footage. As with 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 you need 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 back wall closet

Secrets of adjusting wallpaper patterns to save material

Almost always wallpaper comes with a pattern. If you want to fuss less with joining, it is better to choose a material with a loose fit. This means that there is no pattern on the panels at all or it does not need to be adjusted. Examples of such design are stripes, small peas, flowers, dots, etc.

There are such concepts as direct and offset fitting, in which the material consumption increases slightly.

Direct fit involves exact alignment with the pattern of the previous pasted strip. In order for the ornament to match, each subsequent strip is moved towards the ceiling until the elements on the seam form complete picture ornament. The height of the repeating part (called repeat) is indicated on the label.

Another way of fitting is offset. This method is used for large images on finishing material. Such wallpapers are the least convenient, since their use is fraught with great expense. After all, in order for the wall to look neat and aesthetically pleasing, each subsequent canvas is cut out so that it is half the length of the previous one. On the label, the manufacturer reports the greatest waste per piece. This information is given as fractional number- For example, 64/32 . This means that the amount of rapport 64 cm, and the length of movement is 32 cm.

Attention! Before purchasing, you must study all relevant signs on the product packaging.

How to calculate wallpaper if you need to adjust the pattern

Wallpaper with complex pattern need to be customized. Therefore, the calculation of such finishing is more difficult. In addition to linear measurements, the height of the repeat is taken into account. Calculations are carried out in the following sequence:

1. Measure height one lane. This indicator is multiplied by the height of the repeat, and the resulting number is divided by the length of the roll. The number is rounded down to a lower integer.
2. Calculate number of rolls according to the method described above.

Attention! Be sure to take rapport into account when gluing finishing coatings with complex patterns. If this is not done, then at the end of the work it may turn out that you will have to buy 2-3 rolls.

Another way to save on material is to glue the canvases not right up to the ceiling, but with an indentation 20-25 cm. This technique is effective in rooms with high walls, because it visually makes them a little lower. But it is not suitable for squat rooms.

Video - Subtleties of wallpapering

How to save money on wallpaper

One way to spend less wallpaper -use a large picture on only one wall. The rest can be painted or covered with plain materials. Another way - alternate canvases with zero offset with bright, large prints.

And this is a real find for those who love drawings on the walls, especially large ones. To obtain minimal amount waste, it is necessary 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. The savings will be achieved due to the fact that the pattern in the wallpaper is shifted during production. Therefore, by using several streams at once, it is possible to reduce waste.

How to calculate the amount of liquid wallpaper

A material 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, paints and varnishes. 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 produced already tinted. There is also a product category for professional use. It consists of separate components that must be diluted and painted before finishing the wall.

Quantity calculation liquid wallpaper also depends on the size of the room. Therefore, before starting, it is necessary to take measurements as described above.

Attention! The quantity depends on the composition of the finishing material itself. So, the finer the fibers, the less material required.

Consumption depends on how correctly 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 is poured into a container room temperature- pure, without impurities. The amount of water per 1 package must be specified on the packaging; the amount differs for different products.

Step 2. Glitter is poured into the water (if it is used, it is usually purchased separately). Then the bag with wallpaper is shaken and the contents are also poured into the container.

Step 3. The mixture is thoroughly mixed by hand, passing between your fingers. This will help prevent the glue from forming lumps and dissolving.

Step 4. Soak the mixture 12 hours, and mix again.

Rules for mixing liquid wallpaper

Each package is mixed with water separately, regardless of how much mixture is needed to finish the wall. Immediately prepare as many packages as are needed to work with the wall from corner to corner.

You cannot use only half the package. The fact is that the dry ingredients are distributed unequally throughout the bag. Therefore, it may turn out that at the bottom there will be more glue, 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 is a lot of wallpaper, it can be dried and then reused. When mixing some types of silk plaster, it is necessary to use a drill with a mixing attachment.

Liquid wallpaper application technology

The mixture is applied with a plastic grater or trowel. Take small portions, apply the grater 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 using a special gun. It allows you to save up to 40% finishing material. The design of the device provides a lot into which the mixture is loaded. Under pressure, the material is sprayed onto the surface of the wall.

Reference! As is known, ordinary roll wallpaper during the drying period they are afraid of drafts. However, when working with silk plaster, on the contrary, it is recommended to ventilate the room so that the finish dries as quickly as possible.

Photo wallpaper

The easiest way is to buy photo wallpaper. Usually they are selected to match the size of the wall that is going to be decorated in a similar way. However, it is important to note that some coatings are used not on one, but on two adjacent walls. Therefore, to ensure that part of the design is not lost, you need to carefully consider in which part of the room it will be used.

Attention! If and regular wallpaper, then you need to know the size of the former so that you can save on the latter.

The shapes 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 turns out that the canvas is too large, then it is easy to trim it. But if there is 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 much wallpaper to buy

Even if the quantity of wallpaper 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 the strip on the first time. The material may become damaged or dirty during operation. In addition, there may be a defect on the canvas that is not visible upon purchase, since the tapes are rolled up and sealed in film.

Many manufacturers produce limited collections, so you won’t be able to buy the same design in a year. 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, its consumption may increase due to uneven walls. Therefore, up to 20% from the basic calculation.

Before covering the walls, you need to calculate the amount of wallpaper for the room. Wallpaper 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 calculating the required number of rolls. And this is not surprising, because there are a huge number of nuances that are important to know in order to calculate the wallpaper footage correctly.

Wallpaper calculation: step-by-step instructions

Before you go to the store for wallpaper, you need to find out exactly how many meters of this material you need to decorate your apartment. After all, if you buy fewer rolls than you need, then in order to re-glue the room you will have to find the same material, which is sometimes very difficult to do. Large quantity wallpaper leads to unjustified costs.

1. First of all, you need to measure the length of two adjacent walls. The resulting size is multiplied by two.
2. 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.
3. 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 size of the area that can be covered with one roll.
4. 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 to big side.

Thus, the formula for calculating the number of rolls looks like this: P (perimeter of the room) / (L (length of wallpaper) / C (height) * E (width of wallpaper)); R:L:S*E = number of rolls.

To find out the amount of wallpaper you need, you don’t have to do the calculations yourself. You can use online calculator. There is also a table that shows standard footage wallpaper for standard apartments.

Quick calculation of wallpaper by room area

Calculating the area around the perimeter is a fairly common method, but there is another equally quick option. Most professional painters use it.

For calculations, we need to find out the area of ​​the 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 found out the perimeter, which must be multiplied by the height of the walls. Thus, we found out the area of ​​the room.

When we know the area of ​​the room, we need to find out the area that can be covered 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 their product.

A quick calculation of wallpaper based on the area of ​​a room can be done in two ways.

Now the resulting areas can be divided into each other. That is, we divide the size of the room by the size 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 determine the quantity by weight. necessary wallpaper. 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 picture

The number of rolls that will be needed for one room directly depends on how the wallpaper is designed. This may seem strange, but due to 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 packaging

What types of wallpaper are there by type of combination:

1. No pattern alignment required. This designation is an arrow pointing towards a circle. This option is the simplest. 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.
2. The arrows pointing one up and the other down indicate that the wallpaper sheets must be turned upside down one after another. This method also does not require additional expenses material, but when gluing you need to be extremely careful.
3. A more complex option is when the drawing requires mandatory joining. This method is quite expensive, and usually requires removing a piece close to the size of one report from some strips of wallpaper. In this case, an icon with arrows located parallel to each other appears on the package.
4. The option with a pattern offset is the most difficult to stick and requires highest flow rate wallpaper With this option, from each new canvas, you will have to cut off a strip of wallpaper equal to approximately half the report. This gluing is typical for wallpaper with a large pattern located diagonally. In this pictogram, 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 may either count the quantities incorrectly or combine the pattern inaccurately, 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 more rolls. 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 for a room with a non-standard layout?

When measuring the parameters of a room, it is imperative to take into account its layout. If you don't do this, you may end up running out of rolls of material.

Particular attention should be paid to niches, ledges and columns. They take away enough a large number of material. The area of ​​the niches is calculated separately and then summed up with the main dimensions.

In a room with a non-standard layout Special attention need to be given to niches, projections and columns

If you plan to use built-in wardrobes in your interior, you don’t have to cover the places where they will be with wallpaper. However, in this case, you deprive yourself of the possibility of rearranging without updating the repair.

Also worth considering characteristics 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 ​​one wall is calculated separately, and the other three separately.

Calculation of materials for repairs is an important point in finishing an 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 most needed moment.

Technology: how to calculate wallpaper for a room (video)

When planning your apartment design, remember that more types wallpaper is present in one room, the more difficult it will be to figure out the required number of rolls. Of course, this fact is not a reason to abandon your ventures. If you are not sure that you can correctly calculate the amount of wallpaper, you can turn to professionals or consult with good seller Construction store consultant.

So that you do not make a mistake in counting the wallpaper that is needed for repairs, you need to correctly calculate its volume. It’s good if there are any leftovers, you can simply use them later.

But if a roll or a few centimeters is not enough, in this case you will have to work hard. And it’s not a fact that you will find exactly the same party. The canvases may differ in the tone of the pattern, and this is not entirely good.

Anyone can determine the required volume, even without special construction education or construction experience.

Especially if there is no pattern on the wallpaper. You just need to know how to make the correct calculation. And here you need to follow the following sequence:

• First of all, you need to measure the length and height of the walls.
• Now we need to calculate their total perimeter. To do this, add the lengths of two adjacent walls and multiply by 2. Let’s say our walls are 6 and 5 meters, which means the perimeter is 22, i.e. (6+5) x 2=22 m. Standard size The roll is 53 cm wide and 10 m long.
• Wallpaper is easier to calculate based on the number of stripes required. For example, the height of the wall is 2.5 m, therefore, 4 strips will be obtained from the roll. And the total width will be equal to 212 m, i.e. 4 x 53 = 212 cm. Now we perform the arithmetic operation of dividing 2200 cm: 212 cm = 10.38 rolls. We round up and it turns out to be 11 pieces.
• If you need to wallpaper the ceiling, then the calculation must be made separately.

If you purchased wallpaper with a pattern, then the calculation described above will not be able to take into account rapport, this is the distance between the elements of the pattern.

Such canvases are glued strictly according to the design, without violating the integrity of the overall perception. Usually the rapport is indicated on the packaging, and the larger it is, the higher the wallpaper consumption will be.

But if financial costs do not scare you, then you need to observe some nuances and do the following:

1. Measure the perimeter of the walls and the height of the ceiling using a tape measure. Measure solid walls and the distance under and above windows (doors) separately.
2. You need to know the roll dimensions. For example, its width is 0.53 m, length is 10.5 m, repeat is 0.2-0.4 m. Ceilings are 2.6 m. Therefore, from one roll you will get 3 sheets 3 m long = 2.6 + 0.4.
3. If you measured the walls in sheets, then you need to divide the number of sheets on the walls by the number of sheets in the roll. And if we used meters in the calculations, then one roll will be equal to 1.59 m. = 0.53 x 3. We divide these numbers by the footage of the perimeter of the walls.
4. The pieces you have left over may be suitable for sections of wall above a door or above a window.

The main feature of liquid wallpaper is that it has no seams. And this feature gives the room a certain completeness.

This universal finishing material is pleasant to the touch, safe for humans and allows designers to create original and unique projects.

To hang liquid wallpaper in your apartment, you need to determine the number of packages needed to complete the work.

To make the correct calculation, you need to divide the wall area by the consumption of one package. This information is indicated on each package. Usually one package is enough for a surface of 3-5 m2. Let’s say the area of ​​the walls of the room is 40 m2, and the average consumption of one package is 4 m2. By dividing 40: 4 we obtained the required consumption - 10 packs.

But when purchasing liquid wallpaper, be sure to buy a quantity of it with a reserve of 1 - 3 packages. Liquid wallpaper can be applied to uneven surface with minor defects. This means that the consumption of the material used may increase, so take care of this in advance.

Using a tape measure, measure the length of each wall and add up the results:

3 + 4 + 3 + 4 = 14 m, or (3 + 4) * 2 = 14 m.
We found out the perimeter of this room. It is equal to 14 m.

Dividing the perimeter of the room by the width of the wallpaper, we get the number of strips of wallpaper , necessary for gluing this room:
14 / 0.5 = 28 stripes.
Now let's count how many stripes you can get from one roll. To do this, divide the length of the roll by the height of the wall.
10 / 2,5 = 4

The resulting number is always rounded down to the nearest whole number. Next, the number of strips required should be divided by the number of strips that can be obtained from one roll:
28 / 4 = 7 rolls.

It is advisable to purchase one roll more than required. If any area becomes dirty or damaged, you will always have the opportunity to use an additional roll.

Preparing walls for wallpaper

To prepare the walls for wallpaper, you need to thoroughly clean the room. The bedding on the floor is completely changed - the old one is removed.

Of the tools for marking the surface of the wall and wallpaper, an ordinary one is best suited pencil medium hardness (TM or ST) - neither ball pen, nor a marker will work, as traces of them can then appear on the wallpaper.
To draw lines you will need a ruler length 50 cm and a plumb line, but it’s best to use a level.

For cutting wallpaper(and cutting edges) you will need scissors (long) and an upholstery knife.
To apply the adhesive to the wall and wallpaper you will need brushes and rollers.

In addition, for work you will need containers for preparing glue and water for rinsing the sponge. You will need a tray for the roller, since it is extremely inconvenient to draw glue onto the roller from a bucket. You will also need a stepladder when gluing wallpaper.
Working with glue is a dirty job, so be sure to wear protective clothing. A robe, an apron, a headscarf, old sneakers or used sneakers, a rag in your pocket for wiping your hands...

If you don't have a big one sliding table, on which you can lay out a full-length strip of wallpaper, then you will have to work on the floor. And working on the floor requires more
careful insulation of the floor because glue gets on protective covering on the floor is inevitable.

There is still a long way to go before cutting and spreading important work, This .
In any specialized wallpaper store you will see not only a table for estimating the number of rolls you need, but, more importantly, a consultant who will expertly answer all your questions.

Due to cutting losses, the actual area that can be covered with one roll of wallpaper will be 15% less than indicated on the roll. The percentage of trimming losses can increase depending on how much space the repeating wallpaper pattern takes up. The amount of “pattern repeat” is indicated on the wallpaper packaging. You can compensate for these additional losses by adding the pattern repeat value to the measured value of the room wall height.

Measuring the dimensions of a room

Walls . Measure the length of the wall to the nearest 10 cm. (If the entire room will be wallpapered, then sum up the length of all the walls to determine the perimeter of the room.) This should also include the length of the window and door openings. Measure the height to which the wallpaper will be glued, to the nearest 10 cm. When measuring the height, baseboards and top decorative trims are not taken into account. Ceiling. Measure the length and width of the ceiling to the nearest 10 cm.

How to measure non-standard surfaces

Projecting ceiling structural elements. If you are wallpapering over protruding ceiling structures, add the width and length of each side to the measured wall area.