Calculation of the required number of ceramic tiles. How to calculate how many bathroom tiles you need: we repair economically

In order to calculate the number of bathroom tiles, you first need to decide on the following questions:

• What type of styling will you use;
• What color scheme are you planning to use;
• Will you need to fit the pattern;
• Will you only lay tiles on the walls or add decorative elements to the finish?

Choosing the type of styling

Floor

When working with flooring material, the following types of laying are usually used:

1. standard - when the edges of the tiles are laid along the walls;
2. diagonal - the edges are stacked at an angle of 45 degrees;
3. diagonal checkerboard - when laying ceramics of different colors, they alternate.

Walls

When laying wall ceramics, you can choose the following types of cladding:

1. the usual "straight" - when the elements are laid parallel to the floor;
2. usual with borders (one wide or narrow and wide, alternating);
3. diagonal;
4. checkerboard (normal direction or diagonal).

The choice of the type of stacking is important, because in the diagonal direction the material consumption increases, because you will have to do a lot of trimming the corners of the tiles to fit from the center to the corners of the walls.

When fitting to a pattern, you will also have to do a lot of trimming.

And it is also necessary to take into account that it is better to do the joints of the first rows away from the walls so that possible irregularities in the wall are not striking.

General calculation rules

There are general rules on how to correctly calculate the number of tiles, even for the bathroom, at least for other rooms where you decide to lay the tiles.

• measure (in centimeters) the length and height of each wall on which you will tile, and the length and width of the floor;
• from the dimensions of the wall in which the entrance door is installed (or in which the bathtub is installed), subtract the dimensions of this door (bath);
• decide on the size of the plates that you will lay (on the floor - 30x30, 33x33, 40x40 cm, etc .; facing - 20x30, 25x33 cm, etc.);
• calculate the result in square meters in advance, and for clarification, you will need to count the number of tiles by the piece.

And keep in mind that the required amount of building materials must be immediately increased by 10%, because such a stock will be required for trimming at the edges of the walls, in case of careless damage to tiles or cosmetic repairs of some section of the wall (floor) in the future.

When calculating the number of tiles, it is better to immediately do without an online program, because no matter how perfect it is, it still makes mistakes. She, for example, does not take into account the width of the seams between the rows, and in her postscript it is still recommended to check all the results manually.

Laying tiles on the floor: calculation example

In order to make a specific calculation required for laying on the floor, we take the following data as the initial data:

1. Floor width - 150 cm
2. Length - 170 cm
3. Product size - 33x33 cm

Installation of standard type, tiles of the same color

• To find out how many tiles you need, first divide the floor width (150 cm) by its side (33 cm), we get the result - 4.54 (the number of tiles in one row in width), round up to a whole - 5 pieces.
• Now let's count how many such rows are needed along the length of the bathroom: we divide 170 cm by 33 cm, we get 5.15 rows, round up to 6.
• Next, multiply 5 tiles in one row by 6 rows, we get 30 pieces. We add 2-3 in reserve, which means we will buy 33 ceramic tiles.

If the calculation of the number of tiles was not made by piece, but by floor area, then a serious mistake would have been made. Floor area - 1.70m x 1.50m = 2.55sq.m, divided by the area of ​​one tile 0.33m x 0.33m = 0.11sq.m, we get 24 (rounded) pieces. That is, 6 tiles would not be enough for the floor (plus a supply). Indeed, when counting by the piece, the trimming of the plates during installation was actually taken into account.

Bathroom wall cladding

• 270 cm (wall height) divided by 30 cm (tile height) = 9 elements in one row in height.
• 150 cm (surface width) divided by 20 cm (product width) = 7.5 - round up = 8 pieces in width.
• We multiply 9 by 8, we get - 72 units measuring 30x20 cm are needed for one wall 150 cm wide.
• By similar calculations for a wall 170 cm long, we get the result - 81 tiles.

We take into account the doorway

To calculate the amount of tiles required for facing the wall in which the door is installed, it is necessary to subtract the amount that falls on the size of the doorway from the number of elements for the opposite wall.

For example, divide 200 cm (doorway height) by 30 cm (tile height), we get 6.7 - round down = 6 pieces in height; We divide 70 cm (opening width) by 20 cm (product width), we get 3.5 - round down = 3 pieces in width. 6 multiplied by 3, we get 18 pieces, which we subtract from (for example) 81, we get 63 pieces.

If the wall, which will have a bathtub, you will cover it completely, then the number of tiles on it is easy to calculate. If you do not plan to cover the space occupied by the bathroom, then the calculation for this wall is performed in the same way as for the wall with a door.

Calculating the amount of grout

After the completion of the laying work, grouting is performed. For this, grout is used, both of the same color as the main color of the coating, and contrasting (white for black tiles, etc.).

To calculate the amount of grout for tiles, you need to know the amount of space to be filled. A joint width of 1.5 to 3 mm is recommended. To the depth of the joint, approximately equal to the thickness of the tile, a coefficient of 1.5 should be applied, which will take into account the shrinkage of the material, moisture, etc.

To calculate the grout volume, divide half of the perimeter of 1 tile by its area and multiply by the thickness. Multiply the result by the seam width and 1.5 (factor). The result will be the mass (in kg) of grout required for 1 square meter of coverage. For example, with a joint width of 2-3 mm and a tile area of ​​0.04 square meters, one kilogram of grout will be enough for 3.5 square meters.

Summing up

As a conclusion, we can say that determining the area for laying tiles is not always effective and accurate, especially with small rooms. It is also too difficult and impractical to apply the calculation formula in small rooms. It is better to make one-by-one calculations.

In the above examples, for simplicity of calculation and understanding of its very principle, the dimensions of a typical apartment and monochrome ceramics without decor and borders were taken as the initial data. These examples are quite enough to calculate the required amount of tiles for different colors, when installing curbs, etc. according to the described rules.

(No ratings yet)

Discussion:

Denis said:

Commentators are amazed You really had no idea how to count the number of pieces without this article? Unfortunately, the article did not touch on the topic: what size of tiles to choose, which wall to take as a base, so that you don't have to cut the pieces.

Sergey said:

Whoever wrote the article is probably a genius. I could not imagine that everything is so simple! Just got to the renovation of the bathroom, I thought that I could not cope with it at all. Well, not at all my profile. It turned out that everything is just like that! Now I can check the people in the building stores to see if they are trying to shove me a lot more tiles than I really need. This information really proved to be very useful and timely.

Konstantin said:

For the most accurate calculation, so that there are no unnecessary costs for material, initially decide on the choice of tiles. Knowing its size, mathematically, it will be easy to calculate the exact number of tiles on a certain surface, which will save you money. Also, do not forget to take into account and discard when calculating the tile seam. Since the tile does not fit jointly to joint, and when laid under the "crosses" there is a gap of 2 to 5 mm.

Plitkin said:

The calculations for the bathroom in the comments are not entirely correct. Since modern tiles are made in such sizes - for the floor 30x30, for the walls 20x3 0, etc. Therefore, it should be considered as follows:
Half - length 2.50m. is 8 rows of 30 cm. = 2.40 + 10cm. pruning.
width 1m. is 3 rows + 10cm. trimming, total: 8 x 3 = 24 pieces + trimming 8 + 4 = 12 divide by 2 (the middle will most likely have to be thrown out) = 6 pieces.
On the floor 30pcs + stock 4pcs.
Walls - width 2.5 + 2.5 + 1 + 1-0.75 (doors) = 625 mm. - 32 rows of 20cm tiles.
height 2.5 x 30cm. = 8.5 rows
32 x 8.5 = 272 pcs.

Drawing of one wall

The calculator does not calculate the number of tiles by area, as is done on most sites, but by the number of tiles by the height and width of the room. In this case, the number of tiles is first rounded up to a larger integer, and only then the total number of tiles is calculated by multiplying the number of whole tiles in width by the number of whole tiles in height. The number of tiles is calculated in a similar way, taking into account the voids. This approach takes into account the amount of tile waste when changing the position of the void. Any tiler knows that when the door in the room is against the wall, there will be less waste. But most similar calculators that calculate the number of tiles by area do not take this feature into account.

X - wall width

Xd - width to void

X1 - the width of the void

Xp - width after void

Y - wall height

Yd - height to void

Y1 - the height of the void

Yp - height after void

FY - tile height

EX - tile width

Enter all the dimensions one by one in the corresponding places on the form. Dimensions must be indicated in mm. If the wall is completely glued with tiles, that is, there are no doors, windows and voids on the wall, then in the form where the dimensions are indicated "to void", "Width of void", "Height of void" must be set to zeros.

If there are voids on the wall (where the tiles are not glued), you need to carefully measure the distance to the void in height, in width and the dimensions of the void itself. The calculator calculates the size above the void in height and behind the void in width.

If dimensions are entered incorrectly, there will be a warning "Inexhaustible".

The calculator is designed for tile layout from bottom to top, from left to right. This means that the trimmed tiles (if any) are located at the top of the wall and to the right when looking at the wall. If you need a tile layout from right to left, this can be taken into account by resizing to a void in width and viewing the picture as a mirror when laying the tiles. Indicate the size of the joint between the tiles, the amount of cut tiles depends on it and, accordingly, an increase in the amount of waste is possible. With small dimensions of the wall for cladding, the size of the seam affects only the amount of tile waste; with wall sizes of 10 or more tiles, the size of the seam can also affect the number of tiles that need to be purchased. When facing tiles, do not cut the tiles all at once (for example, if there is a tile that needs to be cut to a void in height, then see the calculation, you can use parts of an already cut tile). This will minimize tile waste. Likewise for the last row for the height and width of the wall. If the remainder of the cut tile exceeds the size of the tile to be glued, then it is better to cut it off from the already cut one.

The Tiler Skill Proficiency score takes into account the skill of the tiler. It is known that most of the waste occurs when cutting tiles. Therefore, this calculator calculates the number of tiles cut and the percentage of scrap when cutting, depending on the qualifications.

This parameter is subjective. It indicates that 10% of all cut tiles will be spoiled with the tiler's "1" qualification. Accordingly, 20% of the cut tiles are spoiled when the number “2” is entered. And so on. This parameter can be specified from your own experience if you know the tiler well, or you can ask the tiler himself how many tiles can be damaged when cutting.

Taking into account the qualifications of the tiler provides the possibility of a one-time purchase of the entire required number of tiles. There are situations when the number of tiles is incorrectly calculated and it is necessary to buy more, but the tiles of the same batch have already ended. A similar tile from a new batch may differ in tone and this will be an unpleasant surprise.

After entering all the required dimensions in the forms, you must press the "Add" button. The name of the tile, the calculation of the number of tiles and the price are recorded in the specification. When the calculation is completed for all walls with the same tiles, click the "Total" button. A corresponding line will appear in the specification with the calculation of the total number of tiles and their total cost. Make sure that only tiles of the same type are included in the specification, otherwise you will get an error. If you accidentally add a tile of a different type, you can delete it before clicking on the "Total" button. If necessary, you can delete the entire BOM table.

In a situation where there is both a void for the bathtub and a window on the wall, that is, several voids, it is better to divide the wall into two or three, depending on the number of voids. A conditional dividing line must be made in the place of multiple laying of tiles, taking into account the seam. For example, with a tile height of 300 mm, the height of the partition can be made at a height of 900 mm. plus the thickness of the two seams. These wall parts will then be summed up in the schedule automatically.

Many rooms in a house or apartment are traditionally or at the request of the owners faced with a ceramic coating, and it is very important to know how to calculate how many tiles are needed.

If you are going to make a beautiful apron in the kitchen by laying it out of pastel-colored tiles, you can literally calculate the amount of material on your fingers, only having decided on the number of rows. At the same time, most likely, it will be possible to completely avoid any costs, especially if you use square tiles. However, with full wall or floor cladding, certain difficulties arise. The fact is that in addition to the main type of tiles, there are also curb tiles. Ceramic elements are not only square, but also rectangular, as well as versatile and curly, with a complex patterned contour.

Provided that the first two types of form factor are laid in even rows, it will be quite easy to correctly calculate the number of tiles for a kitchen or bathroom. It is enough to know the square of the surface to be trimmed and the area of ​​the ceramic element to determine how much material is needed on the walls or floor. But by no means always preference is given to the simplest cladding scheme, it is enough to include a couple of borders in it, and the calculations will become much more complicated. Another problem will be added when tiles of different formats and all kinds of decorative elements are included in the decoration.

You have to face certain difficulties if you want to lay out the floor or walls with different types of multifaceted ceramic elements. The geometric pattern will turn out to be beautiful, but to determine the required amount of details, you will have to calculate the area of ​​each figure, and also determine the percentage of its content in the overall composition. The same applies to tiles with a complex contour, here the task is complicated by the fact that it is rather problematic to calculate the area for a shape that is far from geometric. Add to any of the options the presence of plumbing and communications in the room, as well as lighting fixtures on the walls, and it becomes clear that for each individual case you need to look for your own approach, how to calculate the tiles.

The shape of the bathroom, and in some cases the kitchen, is not necessarily perfectly rectangular. So be prepared by dividing its gender into simple geometric shapes. For the most part, these will be all the same rectangles and triangles. But in a typical version, when the lengths of the opposite walls are equal, and all the angles are 90 degrees, it is enough to multiply only 2 values ​​- the sizes of the adjacent sides.

Then, having figured out the squaring of the surface, we determine the area of ​​the tile, and since we are looking for the simplest version of cladding, our tile is rectangular and it is enough to multiply its adjacent edges. Thus, the easiest way to calculate ceramic floor tiles is to apply the formula N = (AB) / (ab). Here N- number, A and B- adjacent walls of a room with a common corner, a and b- adjacent sides of the tile.

It is possible to determine the amount of material by the area of ​​one ceramic element for tiles of any regular geometric shape, for which there are corresponding formulas.

Suppose that you decide to decorate your bathroom with cladding using not only ordinary tiles, but also borders. In addition, for greater effect, it was decided to lay, alternating rows of ceramic elements with the same width, but different heights. In this case, even if only 2 different standard sizes are involved, it will not work to determine the total amount of material, taking into account the borders, using the above formula. Therefore, we use a different method, which, however, starts in the same way as the first - with determining the squaring of the surface to be revetted minus the area of ​​the door and (if any) window opening. To count the material on the floor, you just need to know its length.

Next, you should take all the elements that will be located in alternating rows one above the other and lay them out in a vertical column for the entire height of the finish. We determine the total area of ​​the tiles, taking into account the gaps that are allocated to the seams, and then divide the squaring of the surfaces to be trimmed by the result obtained and find out the required number. However, this method is not ideal, since small errors arise: where the window and the door are located, only the tiles will remain in the columns, laid on the lintels and the wall under the window opening. Therefore, you can use a slightly different and more accurate way.

Determine the perimeter of the bathroom or kitchen minus the door and window opening. We divide the resulting value by the width of the column, into which we have folded tiles of different heights. Thus, we found out the number of rows in that part of the room where there are no openings. For lintels above the door and window, as well as for the section of the wall under the latter, lay out the columns and count their number on these segments separately. Further, it will not be difficult to determine the amount of material for each individual standard size by adding a similar tile in one vertical row and multiplying it by the number of columns in the perimeter.

The walls and floor look very nice, on which ceramic tiles with a curly outline have been laid. However, it is precisely for such, often complex, form factor that it is difficult to come up with a sufficiently reliable way to correctly calculate patterned tiles. And indeed, if there are no edges, and the contour is various smooth or sharp bends, alternating with all kinds of angles, it is almost impossible to calculate the area of ​​the facing element.

It is very good if the manufacturer indicated on the packaging how many square centimeters on the finished surface the tile will cover. But such information may not be available if you were not interested in advance. Therefore, the only available way is to practice drawing. First you need to take paper in a box, or better - graph paper. We draw on it an exact plan of the room where the finishing will be carried out, on a convenient scale. And then we carefully depict, also in due proportion to the real size, a figured tile. We draw the cladding according to the scheme you have chosen.

If all the elements are of the same color, then at the end of the drawing you are unlikely to have a question of how to calculate the tiles; it will be enough to count the tiles one by one. We count individual fragments in pairs, taking each for a whole facing element. However, it may be that for finishing you want to use 2 or even 3-4 tile colors. In this case, we turn the bathroom or kitchen plan into a coloring, marking on it where this or that tinting will be located. Next, we count the monochromatic elements, and thus find out how many different colored tiles are needed on the wall or floor. This method is also suitable for determining the amount of material in complex mosaic laying of conventional rectangular ceramic elements using a large number of colors.

 27/11/2018

 ORRO Mosaic salon

Tile is the most suitable material for finishing sanitary facilities, but also quite expensive. Therefore, so that you do not have to buy it or throw away the excess, you need to correctly calculate the tiles for the bathroom.

The correct calculation of the tiles during the repair allows you to save not only the time spent on the purchase of missing materials, which, it should be said, may not be in the store, but also the funds that will be spent on surplus.

In order to calculate the number of bathroom tiles, first you need to answer the following questions:

• What type of styling will you use;
• What color scheme are you planning to use;
• Will you need to fit the pattern; Will you only lay tiles on the walls or add decorative elements to the finish?

Choosing the type of styling

When working with floor tiles the following types of styling are commonly used:

• standard - when the edges of the tiles are laid along the walls;
• diagonal - the edges are stacked at an angle of 45 degrees;
• diagonal checkerboard - when laying ceramics of different colors, they alternate.

When laying tiles on walls, the following types of cladding are traditionally chosen:

• the usual "straight" - when the elements are laid parallel to the floor;
• usual with borders (one wide or narrow and wide, alternating);
• diagonal;
• checkerboard (normal direction or diagonal).

The choice of the type of stacking is important, because in the diagonal direction the material consumption increases, because you will have to do a lot of trimming the corners of the tiles to fit from the center to the corners of the walls. When fitting to a pattern, you will also have to do a lot of trimming. And it is also necessary to take into account that it is better to do the joints of the first rows away from the walls so that possible irregularities in the wall are not striking.

Measurement of the room

Before calculating the tiles, it is important to correctly measure the room. It is performed after the walls are prepared for laying the tiles. Each side is always measured separately, even if the room is of the correct shape. Round the resulting value up.

When a room has a complex configuration, has protruding elements, niches or boxes are measured separately. It is better to write down all the results by drawing up a plan of the room on a scale on which the location of plumbing, furniture and other interior details is noted. For a more accurate calculation, it is better to convert all numbers to millimeters.

General rules for calculating the required amount of tiles

There are general rules on how to correctly calculate the number of tiles, even for the bathroom, at least for other rooms where you decide to lay the tiles.

1. Measure the length and height of each wall on which you will tile, and the length and width of the floor;
2. Subtract the dimensions of this door (bath) from the dimensions of the wall in which the entrance door is installed (or in which the bathtub is installed);
3. Decide on the dimensions of the tiles that you will lay (on the floor - 30x30, 33x33, 40x40 cm, etc .; facing - 20x30, 25x33 cm, etc.);
4. Calculate the result in square meters in advance, and for clarification and accurate calculation, count the number of tiles per piece.

And keep in mind that the required amount of building materials must be immediately increased by 10%, because such a stock will be required for trimming at the edges of the walls, in case of careless damage to tiles or cosmetic repairs of some section of the wall (floor) in the future.

Laying tiles on the floor: calculation example

As an example, consider the exact calculation of the required number of tiles for laying on the floor.

Let's take the following data as initial data:

• Floor width - 150 cm
• Length - 170 cm
• Product size - 33x33 cm
• Installation of standard type, tiles of the same color.

To find out how many tiles you need, first divide the floor width (150 cm) by its side (33 cm), we get the result - 4.54 (the number of tiles in one row in width), round up to a whole - 5 pieces. Now let's count how many such rows are needed along the length of the bathroom: we divide 170 cm by 33 cm, we get 5.15 rows, round up to 6. Next, we multiply 5 tiles in one row by 6 rows, we get 30 pieces. We add 2-3 in reserve, which means we will buy 33 ceramic tiles.

If the calculation of the number of tiles was not made by piece, but by floor area, then a serious mistake would have been made.

Floor area - 1.70m x 1.50m = 2.55sq.m, divided by the area of ​​one tile 0.33m x 0.33m = 0.11sq.m, we get 24 (rounded) pieces. That is, 6 tiles would not be enough for the floor (plus a supply). Indeed, when counting by the piece, the trimming of the plates during installation was actually taken into account.

Bathroom wall cladding

For example, divide 270 cm (wall height) by 30 cm (tile height) = 9 elements in one row in height. 150 cm (surface width) divided by 20 cm (product width) = 7.5 - round up = 8 pieces in width. We multiply 9 by 8, we get - 72 units measuring 30x20 cm are needed for one wall 150 cm wide. By similar calculations for a wall 170 cm long, we get the result - 81 tiles.

We take into account the doorway

To calculate the amount of tiles required for facing the wall in which the door is installed, it is necessary to subtract the amount that falls on the size of the doorway from the number of elements for the opposite wall. For example, divide 200 cm (doorway height) by 30 cm (tile height), we get 6.7 - round down = 6 pieces in height; We divide 70 cm (opening width) by 20 cm (product width), we get 3.5 - round down = 3 pieces in width. 6 multiplied by 3, we get 18 pieces, which we subtract from (for example) 81, we get 63 pieces. If the wall, which will have a bathtub, you will cover it completely, then the number of tiles on it is easy to calculate. If you do not plan to cover the space occupied by the bathroom, then the calculation for this wall is performed in the same way as for the wall with a door.

Calculating the amount of grout

After the completion of the laying work, grouting is performed. For this, grout is used, both of the same color as the main color of the coating, and contrasting (white for black tiles, etc.). To calculate the amount of grout for tiles, you need to know the amount of space to be filled.

To calculate the grout volume, divide half of the perimeter of 1 tile by its area and multiply by the thickness. Multiply the result by the seam width and 1.5 (factor). The result will be the mass (in kg) of grout required for 1 square meter of coverage.

For example, with a joint width of 2-3 mm and a tile area of ​​0.04 square meters, one kilogram of grout will be enough for 3.5 square meters.

conclusions

As a conclusion, we can say that determining the area for laying tiles is not always effective and accurate, especially with small rooms. It is also too difficult and impractical to apply the calculation formula in small rooms. It is better to make one-by-one calculations. In the above examples, for simplicity of calculation and understanding of its very principle, the dimensions of a typical apartment and monochrome ceramics without decor and borders were taken as the initial data. These examples are quite enough to calculate the required amount of tiles for different colors according to the described rules, when installing curbs.

Why and how to calculate bathroom tiles? This is necessary to purchase the required amount of building material: you will not overpay for unused material, and the money saved can be spent, for example, on buying tile adhesive.

Calculation of tiles for bathroom walls

1. We calculate the area... Measure the perimeter of the room and multiply it by the height of the walls. For example, the height of the room is 2.7 m, the width is 2.5 m, the length is 3 m.We find the perimeter: 2.5 + 2.5 + 3 + 3 = 11 m. The perimeter is multiplied by the height: 11 × 2.7 = 29, 7 m2. The area of ​​the door and windows, if any, is subtracted from this number. Let's say after subtracting an area of ​​28 m2 is obtained.
2. Find the area of ​​1 tile... For example, the dimensions of one tile are 0.3 × 0.2 m. Then its area is 0.06 m2.
3. Find out the number of tiles for the bathroom... The area of ​​the walls is divided by the area of ​​one tile: 28 / 0.06 = 467 pieces. 10% stock is another 47 pieces. The total number is 514 tiles.

How to calculate the number of tiles on the floor

The mathematical calculation of the number of tiles per floor is similar to the above algorithm:

1. Find the floor area.
2. We divide the floor area by the area of ​​one tile.

Common questions

• How to calculate the number of bathroom tiles if they are laid diagonally across the floor or wall? In this case, the counting algorithm is no different.
• What is the margin for calculating bathroom tiles? The allowable stock of tiles from its estimated quantity is 10%. It is unreasonable to buy a larger volume of tiles for reasons of economy, less is risky, because you also need to take into account the grout joints for the tiles.
• How to calculate how many tiles you need in a bathroom if the floor area is partially covered by a bathtub or shower? Just subtract it from the total floor area.

As you can see, simple calculations allow you to find out how many tiles you need in the bathroom. The calculation principle is also relevant for