Renovating a bathroom, or any room, is always a troublesome, costly, and labor-intensive task. To do this, it is necessary to prepare a large number of various tools and materials, and select them in accordance with certain requirements. In addition, you need to take into account the design of the apartment so that the space being arranged does not fall out of the overall plan, unless, of course, this was not planned initially.
In order to carry out finishing work, it is necessary to calculate the exact amount of materials required. Moreover, you should buy the entire quota of products and even with a reserve, since another batch of products will most likely differ in tone or texture, which is very ugly.
Tile is chosen for decoration in the bathroom. It has various shapes, sizes, colors, and is suitable for laying floors and walls. The number of products that will be needed will depend on these parameters. So, how to calculate how many tiles you need?
Tile selection
Before you count required amount products, it is necessary to determine their characteristics. The bathroom differs from other rooms in its high level of humidity, which makes the requirements for finishing materials quite high.
When purchasing tiles, you should take into account their properties, which they should have especially for flooring:
- abrasion resistance;
- high strength;
- resistance to temperature changes;
- moisture resistance;
- resistance to household chemicals;
- resistance to agents with an abrasive component.
First step
Before you start calculating the number of tiles for the bathroom, it is best to carefully measure the room, recording the data obtained. A regular tape measure or rangefinder, which are available in every store, will help with this.
The measurement takes place in two planes: the height and width of the walls. If they have correct form, then it is enough to take 2-3 measurements. In the case where there are protrusions or depressions, then they should be measured separately.
In addition, you need to know the exact proportions of the door and if there are window openings. This will allow you to more accurately calculate the required material. Experts even recommend drawing up a plan of the room, which indicates the position of the plumbing, the total area, the parameters of the wall and floor. As a result, this approach will give a more complete picture of what is happening and help make accurate calculations.
Worth remembering! If the walls in the bathroom seem smooth, then this is not always true. Therefore, it is necessary to carry out several control measurements to avoid errors in calculations.
We determine the amount of material. Method No. 1
The first indicators are achieved by multiplying the length by the width and taken from the floor area. By analogy, the area of one tile product is calculated, and the data obtained is rounded up.
Having received two approximate numbers, divide the floor area by the area of the ceramics, and the resulting value is rounded to a larger integer. Thus, we have a certain number to which we need to add 5%, i.e. multiply by 1.05, and round the resulting result up.
For clarity, we need to calculate using an example where we take average statistical data. The initial ceiling is 2.70 m, the walls are 1.9 and 2.0 m, the door width is 0.7 m. If the conventional dimensions of the floor tiles are 35 by 35 cm, then the calculation will be as follows:
- 1.9*2.0=3.8 m2;
- 0.35*0.35=0.1225 m2;
- 3.8 m2/0.1225 m2=31 pcs.;
- 31*1.05= 32.55, which means you need about 33 tiles.
Method No. 2
The number of ceramic products that will be laid on the floor is calculated based on the length and width. To do this, you need to divide each of these floor parameters by a similar tile value. The resulting data is multiplied, after which we round it up and add 5% again. Here is an approximate calculation:
- 1.9/0.35=5.42 pcs.;
- 2.0/0.35=5.71 pcs.;
- 5.42*5.71=30.96 pcs.;
- 31*1.05=32.55, i.e. You need about 33 tiles.
Bathroom tile layout plan
Need to know! Typically, managers in specialized stores prefer to use the first method of determining the exact amount of material.
We determine the number of products per wall. Method No. 1
We need a certain number of tiles to cover the wall surface. To do this, we calculate the perimeter of the entire room. We add the length of each wall separately, then add the length and width together and multiply it all by 2. (1.9+2.0)*2=7.6 m.
Then we subtract the width of the doorway from the perimeter, and divide the resulting whole by the length of the frieze. (7.6-0.7)/0.2= 34.5 pcs. Here we take as a basis standard size tiles are 200x400 mm, and frieze dimensions are 200x80 mm. After which the value is multiplied by 5%, where the result is 36 tiles.
Method No. 2
The following method allows you to find out exact amount products required per sq. meter. This technique is proven and suitable for installation on any surface of various sizes. First, you will need to calculate the total area of the bathroom by adding the length of each wall, and then multiply the resulting value by the height of the bathroom.
Let's look at an example, let's say the height is 2, length is 3, width is 2.5. Then 3+3+2.5+2.5=11m. Next action multiply the perimeter by the height: 11 × 2 = 22 square meters. meters - area. From it we subtract the space occupied by the door and window openings, naturally, if they are available.
Let's say we get the number 20 square meters. meters. Then we find the total area of one ceramic product. Conventionally, 0.4 × 0.2 m, we get 0.08 sq. meters. Now all that remains is to simply calculate the values. For this purpose 20 sq. m./0.08 sq. m = 250 pcs., while adding approximately 5-10% as a supply of tiles.
It is with the above methods that one can calculate quite accurately required quantity tiles that will be needed for the wall or floor. However, there are other methods that are somewhat less known than in the examples shown. Thus, all that remains is to use the acquired knowledge and carry out all the calculations yourself.
Video instruction
Depending on the specific type, the cost of ceramic tiles can reach high values. Its rational use is one of the options for reducing costs finishing works. Correct calculations needs -effective method saving money. How to accurately calculate bathroom tiles and reduce waste? The work should be done in several stages.
First, let's look at the simplest option for finishing bathroom walls - ordinary plain tiles are used for the work.
We will not touch on the decorative side of the matter; we will talk about its characteristics from the point of view of tilers. They love this material very much for several reasons:
- During installation there is no need to monitor the placement of individual tiles taking into account the pattern. This not only greatly speeds up the installation process itself, but also simplifies marking. You can start laying tiles from any corner and place; there is no need to select its position to obtain a symmetrical pattern;
Such mistakes cannot be made when working with plain tiles.
- tiles can be cut from any side, the segments are used without reference to the location of the pattern;
- It is possible to use pieces of tile from one corner wall to another without preliminary adjustment. Less work and less waste.
We will describe the technology for calculating more complex tile options below, but now we will consider a simple option.
Important. The tiles are sold in packages, in a pack of 0.5 m2, 1 m2 or another quantity (check the number on the package). It is unlikely that any of the sellers will agree to sell tiles individually, in this regard, you should not count the number of pieces, use square meters. By the way, these calculations are universal and are suitable for determining ceramic tiles various sizes, and they can fluctuate within wide limits.
Step 1. Measure the length of all walls of the room. Use an ordinary tape measure, write down the data in a notepad or on a piece of paper. Add up the total length of the perimeter.
Step 2. Measure the height of the room and round off the resulting values to the nearest centimeter.
Let's look at an example. How to calculate tiles for bathroom walls? First, determine the length of the perimeter. Calculation: 1.5 m+3.0 m+1.5 m+3.0 m = 9.0 m. For example, our ceiling is 2.7 m from the floor. Total surface area 9.0 m x 2.7 m = 24.3 m 2 .
Step 3. From this value, subtract the area of the door and window opening.
The dimensions of the doorway are 2.0 m (height) × 0.9 m (width) = 1.8 m 2. If you wish, then add the area of the platbands to the area of the opening. Their width can vary from five to ten centimeters. But we do not recommend doing this for several reasons.
- The savings are not so great as to be worth paying attention to. And any calculations may be incorrect, so there is no need to take unnecessary risks.
- Some types of platbands are fixed to surfaces liquid nails. It's fast and beautiful, no nails or screws are visible. And the liquid glue holds well with smooth surfaces, using it on ceramic tiles is the optimal technology.
- Not all the walls in the bathroom are smooth; some have to be corrected under the trim. Why do the same job twice - lay ceramic tiles around the perimeter of the opening, don’t waste time.
The same applies to the window opening, if there is one in the room, of course. In our example, there is no window, which means the wall area is 24.3 m2 - 1.8 m2 = 22.5 m2. But this is not the final figure yet.
Step 4. Take the dimensions of the bathtub.
If it is installed against a wall, then there is no need to tile invisible surfaces. For example, the width of the bathtub is 0.7 m, length 1.7 m, height 0.6 m. The bathtub will be adjacent to two walls, one at the end, and the second at the side. It is necessary to calculate the abutment area. From the end it is equal to 0.6 m (height) × 0.7 m (width) = 0.42 m 2. From the side it is equal to 0.6 m (height) × 1.7 m (length) = 1.02 m 2. We add these values 0.42 m2 + 1.02 m2 = 1.44 m2.
Step 5. We calculate the exact surface area of the bathtub walls for the tiles: 22.5 m2 (without doorway) – 1.44 m2 (junction area) = 21.06 m2, after rounding we get 21 m2.
Important. If the decorative screen is finished with the same tiles, then its dimensions will not be subtracted.
As during any construction work, you can’t do without unproductive tile waste. How much stock should I leave? There are several factors to take into account:
- qualified tiler. If a professional works, then 5% is enough. For a beginner, the total number of tiles needs to be increased by 10%;
- decorative characteristics of tiles. If the tiles have asymmetrical patterns, then the segments cannot be used. The margin must be increased to 10%, regardless of the skill of the performer;
- availability and location of water supply and sewer pipes. When finishing these obstacles, tile consumption may increase.
Tiles can be laid in a standard way(rows parallel to the floor), in checkerboard, ordinary diagonal and checkerboard diagonal order. Keep in mind that during the checkerboard-diagonal method the amount of waste may increase slightly, but a 10% reserve will be sufficient in any case. At this point the calculation is completed, you can go to the store to buy the material.
wall tiles for bathroom
What to do if there is a border in the bathroom
Step 1. Measure the height of the border and the number of rows of tiles. The height should correspond to the size of the tile.
Step 2. Measure the length of the walls along which the border will be laid, multiply the value by the height. This will give you the total area of the curbs.
Step 3. Calculate the area of one tile, divide the area of the borders by the area of the tile. This quantity needs to be increased by 3–4 pcs. depending on the number of turns.
Calculation example:
- the length of the walls minus the doorway is 9 m (perimeter of the bathroom) - 0.9 m (width of the doorway) = 8.1 m;
- border area for tiles 15 cm high: 8.1 m × 0.15 m = 1.215 m 2;
- the border has a height of one tile of 15 cm. The area of the tile is 0.15 m × 0.15 m = 0.0225 m 2;
- number of tiles. 1.215 m2: 0.0225 m2 = 54 pcs. 2 pcs are enough for stock, buy 56 pcs in total.
If a decorative pattern is planned on the wall, it must be purchased separately. The size of the drawing is indicated on the packaging. Accordingly, this value must be subtracted from the total surface area, and only the missing tiles must be purchased.
Calculation of plastic corners
The use of such corners speeds up the process of laying tiles and allows you to hide small errors made during measuring or cutting tiles. They are installed in internal and external corners, at the junction of the wall and floor. Have different color and sizes, are sold in standard lengths of 2 m and 4 m. They are easy to work with, one side is laid with glue under the tile, and the edges go into the second side freely. This allows you to hide cut irregularities, small chips, etc.
Count it up internal corners, measure their total length. Do the same with external ones. There is no need to round anything, the store will sell a standard length. These elements cost pennies, and you won’t be able to save money on them. Do the same steps around the perimeter of the bath, find out the total length. Do not forget to separately count the number of each type of plastic corner.
If possible, you can also use ceramic skirting boards for bathrooms. In addition to the length, you need to know the number of angles and their type. Professional craftsmen recommend using these skirting boards to decorate the junction of the sides of the bathtub with the wall.
Sum up the length and width of the bathtub, find out the minimum footage. The point is that the length ceramic borders standard, they will have to be cut to fit your size. Are being cut decorative elements on a special disc trimming machine. This is professional equipment and is quite expensive. It is not economically feasible to buy for finishing one bath.
Calculation of the number of floor tiles
There is less work here, everything can be done in a few minutes. How to calculate how many floor tiles you need for a bathroom?
Step 1. Measure the two side walls of the room. There is no longer a need, the perimeter of the room looks like a rectangle, the sides have the same dimensions. In our case, the length is 3.0 m and the width is 1.5 m.
Step 2. Find out the area of the room. 3.0 m × 1.5 m = 4.5 m 2.
Step 3. If you do not want to tile the floor under the bathroom, then you need to subtract its area. This can only be done in cases where the bathtub has a solid decorative screen that hides lower space. The dimensions of our bathtub are 1.7 m by 0.7 m, the area is 1.19 m2.
Step 4. Determine the area open area bath floor. 4.5 m2 – 1.19 m2 = 3.31 m2. Taking into account the reserve, you will need approximately 3.7 m2 of tiles.
Bathroom tile quantity calculator
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Production repair work begin with the right choice technology and acquisition of relevant materials. Floor finishing work with ceramic tiles is no exception.
High quality tiles Nowadays, it has ceased to be a scarce finishing material, and floor coverings are not done so often that ceramics can be purchased for future use in large quantities. Therefore, it is necessary to calculate the tiles for the floor correctly, taking into account the specifics of the technology and the possibility of making spot repairs of the floor covering.
Correct is the calculation of flow rate with a minimum error, and only in a larger direction. This will save money and eliminate unpleasant surprises when there is not enough material and you need to at least buy more.
Despite its apparent simplicity, the calculation of the need for ceramics must be made taking into account many factors that influence the consumption of tiles:
- size and configuration of the room;
- type of flooring (straight, offset, diagonal);
- tile format.
The length and width of the room are measured with a tape measure
Determination of tile consumption in square meters
Monotonous floor finishing with ceramic tiles using direct laying, diagonal laying or offset tiling is a common technology. Calculating the need for tiles in this situation begins with measuring the floor with a tape measure and calculating its area by multiplying the length in meters by the width.
6.3 m x 3.1 m = 19.53 sq. m.
To calculate in square meters the amount of tiles required to finish this area must be added to the resulting value by 10% and the result rounded up, taking into account the trimming of products during the gluing process and possible damage to the material.
Floor tile packaging
19, 53 sq. m. x 1, 1 = 21, 483 sq. m. We round up and get 22 sq. m. tiles
The packaging with ceramics indicates how many square meters of material are contained in a box of tiles, for example, 1.1 square meters. Dividing our obtained consumption value by this value, we get how many packs are required:
22: 1, 1 = 20 packs - the final result of calculating the need for tiles. If the value is fractional, then the number of packages must be rounded up to whole units.
Counting when laying diagonally
Sticking tiles diagonally allows you to hide defects in the geometry of the room, which justifies a slightly higher consumption of ceramics when using this type of flooring.
When laying tiles diagonally, 15% must be added to the floor area, since adjusting the ceramics when fastening in this way creates more substandard waste, and the result is also rounded up.
19, 53 sq. m. x 1.15 = 22.46 sq. m.
After rounding we get 23 sq. m. facing material, divide by the square footage of the ceramics in the box and get the amount of tiles expressed in packs:
23 sq. m. : 1.1 sq. m. = 20.9 packs. We round up and get how many tiles you need to purchase - 21 boxes.
If the room has a different shape (trapezoid, polygon, oval, circle), then the area of these figures is determined using the appropriate mathematical formulas, or the floor is divided into simple geometric components (rectangles, triangles), the area of which must be calculated separately and summed, and then, taking into account the type of flooring, apply an increasing factor of 1.1 or 1.15.
When laying tiles diagonally, the calculation is made in the same order as with conventional
Piece method for determining flow
This calculation of the need for material gives a smaller error and is used mainly when using expensive finishing materials using the direct laying method or when creating an artistic panel on the floor. When laying ceramics diagonally, this calculation method is not applicable.
Let's look at the calculation using a specific example.
Room dimensions: 6.3 m x 3.1 m.
Product dimensions: 0.25 m x 0.20 m.
At direct way When laying ceramics across a room, the length of the room will fit the following number of sheets of ceramics:
6.3 m: 0.2 m = 31.5 pieces. Round up and get 32 pieces.
The width of the room will fit:
3.1 m: 0.25 m = 12.4 pieces. After rounding we get 13 pieces.
We multiply these values and get:
416: 10 = 41.6 packs. Round up and we get 42 packs of tiles.
Experts say that piece-by-piece calculation of tiles is more accurate.
Combined demand calculation
In this case, a sketch map of the floor finish is drawn up, measurements are taken of individual sections of the base and the format of the corresponding tile.
At first piece by piece method the amount of ceramics involved in the composition of the panel or ornament in the center of the room is calculated, and then, in square meters or also individually, you need to calculate how many sheets will be needed to decorate the background areas with monotonous cladding, taking into account the difference in waste between direct laying and diagonal laying.
Results
Using these recommendations, you can minimize the likelihood of errors in calculating the need for ceramics and save not only on minimum quantity the remaining material, but also on the absence of the need for additional trips to purchase tiles in case of shortage.
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Before you start laying tiles on the floor or starting to finish the walls, you need to determine in advance the required amount of tiles. Only by thoroughly understanding how to calculate the number of tiles and performing the appropriate calculations can you avoid extra costs and reduce waste to a minimum.
You need to buy tiles 10% more than the required volume for cladding.
What should be taken into account during the calculation?
- decide what type of tile installation you will choose;
- decide on the color scheme;
- decide whether it will be necessary to adjust the tile according to the pattern;
- decide whether the walls will be covered only with ceramic tiles or whether the finishing will be supplemented various kinds decorative elements.
There are several ways to lay tiles. You need to choose one of them and based on decision taken calculate the number of tiles. The floor can be covered in one of the following ways:
- Standard – in in this case the edges of ceramic products are mounted along the walls.
- Diagonal - the edges are laid at an angle of 45 degrees.
- Diagonally checkerboard - laying tiles different color with alternation.
For wall cladding, you can choose one of the following methods:
- The usual straight line - the elements are laid parallel to the floor surface.
- Regular with borders (you can use 1 wide border or alternate narrow with wide).
- Checkerboard (tiles can be laid both in the usual direction and diagonally).
- Diagonal.
It is very important to choose the type of installation before calculating the number of tiles. Take into account the fact that if ceramic tiles are laid diagonally, the consumption of finishing material will increase significantly, because you will be forced to trim products to fit from the center of the room to the corners. If it becomes necessary to make adjustments to the pattern, the number of tiles required for cladding will also increase. Do not forget that the joints of the first rows should be made away from the walls. This will visually hide the unevenness of the partitions.
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There are a number general rules, according to which you can determine the required number of tiles for the kitchen, bathroom and any other premises.
You will need the following tools:
- roulette;
- calculator;
- paper;
- pencil or pen.
Take a tape measure and measure the height and length of the surfaces you are going to cover. ceramic tiles. After this, measure the width and length of the floor. Record the resulting values in centimeters. From the dimensions of the wall with the doorway, and if the tiles will be laid in the bathroom, then from the one in which the bathtub is installed, it is necessary to subtract the dimensions of the opening and the bathtub.
Next, you will need to decide on the size of the tiles you will be laying. To finish the floor, tiles measuring 30x30, 33x33 cm, etc. are used. The walls, as a rule, are finished with smaller tiles - 20x30, 25x33 cm, etc. Pre-calculate the result in square meters and then calculate the number tiles piece by piece. It is necessary to add about 10-15% to the calculated value. During the installation process, you will have to trim the tiles; some products may be accidentally damaged or turn out to be defective, so such a reserve must be made.
No matter how perfect such programs are, they still allow some errors. For example, such applications do not take into account the width of the seams, and the developers themselves still recommend double-checking the results.
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Example of calculation of floor tiles
To determine the number of tiles needed for a floor, measure the width and length of the surface, as well as the size of the tile itself. In this example, we will consider the calculation for a room with a floor of 150x170 cm, for the finishing of which ceramic tiles measuring 33x33 cm will be used.
First, divide the width of the floor by the tile side. It turns out that for laying in 1 row in width you will need 4.54 tiles. The resulting value must be rounded to 5. Calculate how many such rows there will be in your room. To do this, divide the length of the room by 33 cm. The result will be 5.15 rows. Round to 6. Now multiply by 5 ceramic tiles in a row for 6 rows. You will get 30 pieces, to which you need to add at least 2-3 tiles in reserve. So you will need to buy 33 tiles.
If you were to perform a calculation based on surface area rather than per piece, you would make a rather significant mistake. The floor area in the room in question is 2.55 m². The area of one tile used is 0.11 m². If you were to use this data, the result of the calculation would indicate the need to use 24 tiles (rounded up). That is, in the end you would not have enough material to work with. And the whole point is that when performing a piece calculation, the cutting of the tiles during laying is taken into account.
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Example of wall tile calculation
As an example, we will consider a room whose wall height is 270 cm, width is 150 cm, and a 30x20 cm slab is used for cladding. Divide the height of the surface by the height of the tile. It turns out that there will be 9 ceramic tiles in the 1st row in height. Divide the width of the surface by the width of the tile. The result is 7.5, round to 8. Now multiply 9x8. In total, you will need to purchase 72 tiles. Add 7-10 tiles in reserve.
To calculate the number of tiles for finishing a wall with a doorway, take the calculation data determined for the opposite wall and subtract from given value the number of tiles per doorway. For example, a doorway is 200 cm high and 70 cm wide. The same 30x20 cm tiles are used for cladding. Divide the height of the opening by the height of the tiles. The result will be 6.7. In this case, it is necessary to round down, i.e. to 6. Divide the width of the opening by the width of the tile. The result is 3.5, round to 3. Multiply 3 by 6. As a result, to finish the partition with the doorway you will need to take 18 fewer tiles. A similar calculation must be performed for the surface on which the bathtub is installed, if you do not plan to tile the space that the container occupies.
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In order not to stop work when renovating a bathroom due to a lack of material or not to think about where to put the excess, it is important to correctly calculate the need for tiles. There are several calculation methods, depending on the type of tile laying and differing in accuracy.
When decorating a bathroom in a monotonous manner, when all surfaces are covered with the same type of tile laying (straight, diagonal or offset), the need for tiles is calculated in square meters or individually.
The amount of ceramics required to perform complex artistic cladding must be calculated separately for each independent fragment of the room’s decoration. Let's consider these methods.
Calculation of ceramic consumption in square meters
When choosing a monotonous type of tile laying, measurements are taken of the dimensions: length, width, height - the room in meters accurate to a hundredth of a centimeter, rounding up fractions of a centimeter.
Calculating the cost of finishing the floor
To calculate the quadrature of the floor, the metric values of the length and width of the floor are multiplied, after which the resulting result is rounded to whole units. If laying is performed in a direct way or “offset”, 10% must be added to the resulting amount. If ceramics are laid diagonally, 15% is added to the floor area.
For example:
The square footage of a room with a length of 4.21 meters and a width of 2.34 meters is:
- 4.21 x 2.34 = 9.8514 sq. m. Rounded up to 10 square meters. meters.
Add 10%:
- 10 x 1.1 = 11 sq. m.
With the diagonal method, you need to add 15%, it turns out: 10 x 1.15 = 11.5 sq. m. ≈ 12 sq. m.
Calculation of material for wall cladding
The surface area of the bathroom walls is calculated by multiplying the perimeter of the room and its height, the resulting value is also rounded up to whole units:
(4.21 + 2.34 + 4.21 + 2.34) x 2.68 = 35.108 sq. m. ≈ 36 sq. meters.
Then measure the height and width doorway in meters accurate to the centimeter, rounding fractions of a centimeter down. By multiplying these values, we get the area of the doorway, rounding it down to tenths of a square meter.
For example:
- the area of a doorway measuring 2.1 x 0.8 is 1.68 square meters. ≈ 1.6 m2;
- the area of the doorway is subtracted from the surface area of the walls: 36-1.6 m = 34.4 sq. m.
To the result obtained, add 10 or 15% depending on the type of tile installation and round up to whole values:
- direct or offset method: 34.4 sq. m. x 1, 1 = 37, 84 sq. m. ≈ 38 sq. m.
- diagonal method: 34.4 sq. m. x 1.15 = 39.56 sq. m. ≈ 40 sq. m.
If you do not cover the walls behind bathroom, then the area of this hidden surface is also subtracted from the area of the walls, but this saving leads to a weakening of the waterproofing of this area behind the bathroom, which is fraught with damage to the finish in the adjacent room due to seeping condensate.
Having calculated how many square meters of tiles are needed for repairs, they purchase finishing material. The packaging of the ceramics indicates how many square meters of cladding it contains. To calculate the required number of packs correctly, the need for tiles in square meters must be divided by the square footage indicated on the packaging and rounded up to whole values.
Calculation of tile consumption per piece
Piece counting has a smaller error, but this advantage also has a downside - this method does not leave material in case of accidental damage to the tiles during installation or unforeseen spot repairs to the cladding.
With this method, measurements of the dimensions of the room are also taken, but in centimeters, rounding fractions of a centimeter up to whole values. For example, a length of 420.5 cm is rounded to 421 cm, a width of 233.7 cm is rounded to 234 cm, and a height of 267.6 cm is rounded to 268 cm.
Then the retail chain looks for a certain tile and measures the dimensions of one tile. For example, the tile chosen for the walls is 15 cm wide and 20 cm long, and for the floor they chose ceramics 20 x 20 cm. To calculate how many pieces of tiles are needed for wall cladding, the consumption must be calculated for each wall separately.
Piece calculation of ceramics for walls
In our example, the bathroom has two walls with dimensions of 421 x 268 cm and 234 x 268 cm. If the tiles are laid vertically, then from floor to ceiling it will fit 268:20 = 13.4 pieces. With a minimum width of tile joints, this value must be rounded to 14 products.
The length on one wall will fit 421:15 = 28.06 pcs., on the second - 234:15 = 15.6 pcs. Let's round up to 28 and 16 products.
We calculate how many pieces will be needed for finishing:
- 14 x 28 = 392 pcs.; multiply by two walls, we get 784 products.
- 14 x 16 = 224 pcs.; We also multiply by two walls, we get 448 products.
For vertical surfaces, 1232 pieces will be required, but from this amount you need to subtract the number of tile pieces corresponding to the area of the doorway. Suppose doorway has dimensions of 210 x 80 cm. Its height will fit 210:20 = 10.5 pcs. Round down to 10 pieces. The opening width will fit 80:15 = 5.33 pcs. Identically round up to 5 products.
Therefore, the area of the doorway corresponds to an area of 10x5 = 50 pcs. tiles that need to be subtracted from the total quantity for the walls: 1232–50 = 1182 pieces.
Piece-by-piece calculation of ceramics for the floor
Let's calculate how many 20x20 cm format products will be required to cover a floor with dimensions of 421x234 cm:
- length 421 cm: 20 cm = 21.05 ≈ 21 pcs.;
- wide 234 cm: 20 cm = 11.7 ≈ 12 pcs.
Multiplying these values gives the number of tiles per floor in pieces:
- 21 x 12 = 252 products.
Calculation of ceramic consumption for complex artistic decoration
If it is decided to make the decoration of the bathroom exclusive, the calculation of ceramics is done in a combined way - by the meter and by the piece. On horizontal and vertical surfaces, subject to registration, you need to make markings according to a pre-developed sketch map of the cladding. At this point, usually required types ceramics are already scheduled for purchase, and the format of the facing material with which the bathroom will be finished is known.
The marking is carried out with construction chalk; it begins with areas of the main plan that will be occupied by artistic panels and ornaments, the trimming of which is not allowed for aesthetic reasons. How many tiles are needed to cover such surfaces is easy to calculate individually.
Then they calculate the consumption of tiles for the frieze (if available on the sketch map) and cladding under the background for the panel. How much material is needed for laying the frieze can also be calculated by the piece method.
The choice of method for calculating the amount of ceramics when decorating the main background depends on the cost of the material, since not everyone plans to purchase surplus expensive tiles.
Results
The accuracy of calculating ceramic consumption when finishing a bathroom depends on pricing policy. If after finishing the work there is a meter or two of facing material left, do not rush to call it a calculation error. This surplus will be indispensable in case of unforeseen spot repairs cladding. It is much worse when there is not enough material, and this type is no longer available for sale.
