How to calculate the required number of tiles for the floor. How to calculate the number of tiles for a bathroom

Bathroom is a room intended for showering, water procedures or bathing.

Correct calculation of bathroom tiles is an integral part of proper arrangement of a room with high humidity levels and allows you to plan the final budget repair work and helps to think through in detail the entire design of the plumbing unit.

Ceramic tiles are among the most popular finishing materials, widely used in cladding floor and wall surfaces of the bathroom.

The tile attracts consumers at an affordable price, a very wide choice of designs, moisture resistance, durability and absolute environmental friendliness.

Bathroom tiles can be installed independently, without the involvement of professional craftsmen, but to obtain a high-quality and durable finish it is very important to determine exact amount facing material.

A scale drawing of the entire space being renovated, including all wall and floor surfaces, as well as any other parts in the room, helps you easily determine the amount of tiles needed.

When making calculations, it is imperative to take into account the features of the installation site, the presence of door or window openings, dimensions finishing elements, as well as the presence in the bathroom of additional areas for installation of tile cladding.

Location (walls or floor)

At the calculation stage, experienced craftsmen carefully measure the surface, calculate the total number of rows to be laid, as well as the total number of tile elements for each order.

Based on the measurements taken and the calculations obtained, a suitable layout and the total number of tiles are determined, after which, using laser level Markings are applied to all surfaces to be coated.

When finishing floors and walls the following can be used:

direct installation is the easiest and affordable option, optimally suitable for non-professionals;
diagonal facing - original version, contributing to the visual expansion of space and well masking the curvature of the floor;
checkerboard finishing - the best way for tiling surfaces different color or shade;
laying with offset - the method is characterized by shifting each subsequent row of tiles with the same distance.

Traditional styling, complemented by various inserts, looks very original and elegant.

Presence of a door (window) opening

Before calculating the wall surface area, it is necessary to take measurements of window and doorways, which will allow you to calculate the square footage of the entire part of the walls being treated with tiles. Readings should be taken along the slopes of the openings. The area is calculated by multiplying the height and length.

If there are several windows and doors in a room, then each is measured separately, and the data obtained must be summed.

Tile size

Ceramic tiles produced by domestic and foreign manufacturers differ not only color scheme and texture, but also in size.

Popular tile formats for bathroom wall cladding:

15x25 cm;
20x25 cm;
33x33 cm;
33x45 cm;
30x60 cm.

When working with the floor surface, elements with dimensions from 25x25 to 600x600 mm are used. The most popular sizes of tiled floor tiles are 10x10 cm, 15x15 cm and 20x20 cm, as well as 30x30 cm.

To decorate a small bathroom, the most preferable option is to use medium-sized tiles.

Additional elements on which the tiles are laid

Additional elements represented by vertical and horizontal edges, as well as other components, require special attention. correct design. For example, special borders with a rounded edge are very convenient for use when decorating any horizontal edges, and vertical finishing should be done with special corner elements.

Initial calculation of tiles

To the most important additional elements when laying wall tiles include borders and baseboards, mirror frames, corner pieces for edge decoration.

How to calculate the number of tiles for a bathroom

Calculation facing tiles for finishing a bathroom can be done using special programs in the form of an intuitive online calculator. If you wish, you can make all the calculations yourself, remembering the basic course of school mathematics, and also armed with a tape measure, pencil and paper.

Floor calculations

The technology for independently calculating the floor involves performing the following measurements:

the area of two side walls in the room. For example, the length of the room is 2.0 m with a width of 3.0 m;
Calculate the floor area of the room by multiplying the length by the width. For example: 2.0 m × 3.0 m = 6.0 m 2.

When using a calculator, the area of the estimated flooring calculated in a standard way, but taking into account the length and width of the selected cladding elements. It is also mandatory to enter accurate data on the thickness of the planned tile joint. The last indicator is especially important when the bathroom area is large or when using small-format tiles.

Calculation of floor tiles

At the final stage of calculations, you need to indicate the laying method, which can be represented by traditional or diagonal rows. Despite the fact that the coverage area is preserved in any case, cutting tiles is always accompanied by significant waste and requires correction of the final amount of material.

Wall calculation

The technology for self-calculation of walls involves performing the following measurements:

the length of all walls in the room;
sum the data to obtain the total perimeter length;
obtain the height of the room or area to be covered;
round data to the nearest centimeter;
calculate the total area;
exclude from the total area the dimensions of window and door openings, as well as decorative inserts.

For example, the purchased tile has standard dimensions of 200×300 mm.

If the width of the wall is 340 cm and its height is 280 cm, then the calculation is performed as follows:

conversion of centimeters to millimeters: 340 × 10 = 3400 mm and 280 × 10 = 2800 mm;
the height of the surface is divided by the length of the tile: 2800 ÷ 300 ≈ 10 (number of rows of tiles);
the width of the wall is divided by the width of the tile: 3400 ÷ 200 = 17;
the number of elements for the entire surface to be covered is calculated: 10 × 17 = 170 pieces;
the percentage of tile reserve is calculated: 5-10% of 170 is 9 or 17 tiles.

Thus, the total quantity purchased finishing material taking into account the stock, it is 179 or 187 pieces (depending on the installation method). To calculate the wall area using the online calculator, in addition to the length and width of the bathroom, you also enter the total height of the area to be finished.

Incorrect calculation causes an excess of tiles and unnecessary expenses, as well as a shortage of elements. The second option is the most unpleasant, since there is a high risk of being out of stock the required material, which can completely ruin the entire design of the room.

Stock

When purchasing tile or other finishing tiles it is necessary to order approximately seven percent of the facing material additionally.

The optimal percentage of the reserve from the total amount of material will allow the work to be completed if chips or cracks appear on some elements, as well as if tiles with defects or color mismatches are identified during the laying process.

This feature of the choice is explained by frequent cases of the presence of tiles of the same brand in different batches, but with significant differences in color scheme. When laying diagonally, a large amount of material is consumed, so the standard supply of tiles is about 15-20%.

The reserve tiles remaining after finishing can be subsequently used for local repair work, when replacing elements that have become unusable.

Moisture resistant ceramic or tile- an excellent choice for installation in rooms with high level humidity, including any size bathroom. Tile cladding characterized by very attractive appearance, moisture resistance, hygiene, durability and reliability, and the correct calculation of the amount of such finishing material is accessible even to non-professionals.

The calculator gives our clients an excellent opportunity to calculate the number of tiles required in order to fill the intended space. In addition, the graphical component of the calculator allows you to combine or fill the space with tiles of the same size and visually reproduce the surface of a wall or floor with a virtual layout before it is carried out on the job site. To take full advantage of the functional part of the calculator, you need to decide on the tile that will take part in the calculation, and also specify the parameters work surface and its characteristics.

1. Let's start by choosing a collection for the layout. By clicking on the required type of tile, you are presented with all the options for collections and products that belong to this type. To narrow your search, you can use site filters.

2. After the required collection or product has been found, you need to follow the name link. IN in this case the Sketch collection was chosen.

3. Here you need to click on the “Online tile layout” item, where all the elements of the collection you chose will be presented.

After this, you must follow the instructions provided. For correct calculation, you need to indicate the plane on which the layout will be carried out - this can be a wall or floor. Since in this case the collection is intended only for the floor, the choice of layout on the wall is not available:

For a more accurate calculation, you need to indicate the characteristics of the seam size, which will also be visualized on the graphic part:

And to choose the laying direction, you should select the vertical or horizontal option. In cases where the tile will be different from a square shape, a choice of two options will be available. Since in this case the tile is square, the direction does not play a special role, so only one option is available:

In addition, in the calculator it is possible to indicate the size of the surface, which will not be taken into account in the calculation. You can do this by clicking on the “+ Add an area without tiles”. The size of the area can be stretched along the edge, or set manually:

Having completed the indicated steps at the very bottom, a count of all the tiles that took part in the graphic field on the right will be carried out, be it ceramic tiles, porcelain tiles or various decorative elements collections. All counting data will be displayed in the plate. At the bottom of the table, information about the total amount will be displayed, and next to it there will be a button, by clicking which you can quickly add all items to the cart and proceed to checkout. In this case, you can study the instructions for placing an order, starting from point number 4.

The calculator itself is located a little lower, if you are not interested in the theoretical part, you can. Tiling a bathroom is becoming almost the only acceptable way of tiling the surfaces of sanitary facilities.

In this regard, it is important to know how to calculate tiles for a bathroom using a calculator specially developed for this purpose by our programmers.

This calculation will allow you to purchase materials in the right quantities to optimize your costs.

Similar wall cladding in a room with a bathroom can be laid with the most different ways, the choice of which depends on many factors, including the design of the material, its size and texture.

Of course, one of the decisive factors is the readiness of the performer and his professional training.

Calculate bathroom tiles - calculator

How to calculate correctly with an online calculator - preliminary considerations

The program provides for calculating the need for tiles when laying them in the standard way, that is, in rows parallel to the floor with a horizontal arrangement of the decorative insert (decorum). Despite the large number of dimensions marked on bathroom diagrams, you should keep in mind that not all of them are required to be filled out.

For example, if there is only one window in the bathroom, you do not need to fill in dimensions L3 and L4 or L9 and L10; if there are no windows at all, then the dimensions L1 and l2 are also not filled. If the lengths of walls 1 and 3 (scheme 1) and, respectively, 2 and 4 (scheme 2) are the same, then dimension Lb1 is not filled. If the long walls are unequal, the size of one of the short sides is calculated by the program. Decorative tiles should be laid after a full (not cut) row of the main tile.

“Distance to decor” means the size from the floor to the top edge of the decorative insert, taking into account the number and width of the seams between the tiles. If there is no decor, all dimensions related to it are not entered! If you need to tile sections of the walls behind the bathroom, you should indicate this by clicking on the square button with the corresponding question (under the diagram); a checkmark will appear on the button; You can remove it by clicking again.

THUS, the dimensions Lh, Lb2, Lb3, L5, L6, L8, the dimensions of the bathtub and tiles, and the width of the joint between the tiles are required to be filled in. Size L7 is indicated if the tile will run under the door trim. Lb3 size can be longer baths. The room height (Lh) must take into account the baseboard.

The calculation is carried out taking into account that the tiles are laid from bottom to top, from left to right.

Diagonal method of tiling a bathroom

Using this method, you can stick cladding of any size - both square and rectangular. Great importance when performing work in this way, the performer has professional training and qualifications.

Tiling a bathroom diagonally has a number of advantages and some disadvantages. TO positive aspects The following can be included:

The rotated position of the plates in relation to each other visually separates the intersecting planes, creating the illusion of a wider space than it actually is. This is important when finishing is carried out small room.
The combination of shades, patterns, drawings on the plates makes it possible to create original design premises.
When installed diagonally in the bathroom, the difference in the size of the wall being finished is partially hidden, which is facilitated by the inclined position of the lines.

However, there are also some negative points:

Labor-intensive and complex installation due to the large number of cutting operations. Complex marking, cutting and placement of individual parts with an angle require the master to have some experience in performing such work.
When cutting parts diagonally, the corners often chip off, which requires additional refinement of the break with a file.

Preparatory work on surfaces

Before starting work on laying cladding in a room with a bathroom, it is necessary to assess the condition of the surfaces to be finished:

First of all, they check geometric dimensions walls Each surface must be strictly rectangular; if this condition is not met, the walls must be leveled, even before installing drywall.

Potholes and uneven surfaces on the walls also need to be leveled. Irregularities up to three millimeters deep can be leveled tile adhesive during the installation process. Deviations from flatness up to seven millimeters deep are best straightened using putty.
Irregularities with a depth of ten millimeters or more must be eliminated by covering the walls with waterproof plasterboard.

It should be noted that leveling the walls is mandatory before using any finishing installation methods in the bathroom.

And one more general wish regarding surface preparation. Before tiling begins, they must be primed with tile adhesive diluted in a ratio of 1:3. However, this action must be carried out in accordance with the instructions - use tile adhesive, for different compositions requirement may vary.

Diagonal installation of decoration on walls

It is no coincidence that we suggest starting with wall decoration. If the floor finish is laid first during renovation, the rest of the work will have to be done while moving on the new coating, which can lead to damage.

The cost of covering walls with ceramics is not cheap. How to calculate the number of tiles in the bathroom to avoid unnecessary costs? Diagonal placement involves its arrangement as a continuous canvas with cutting out the smallest fragments.

Therefore, this method, despite its high labor intensity, is considered the most economical. Only parts damaged during cutting end up in waste. Therefore, to calculate the coverage for a room with a bathroom, it is enough to calculate the total area of the walls, and, just in case, add about 5% for damage and defects.

The cladding in the bathroom should start from the wall opposite front door. When laying diagonally, you need to start from the vertical axis. Laying is done from the starting part in both directions evenly with the installation of spacer crosses along the seams.

They are inserted between the plates, two pieces per side. The thickness of the cross foot is 1.5 millimeters.

The laying technology is as follows:

A portion of glue sufficient to install 2-3 plates is applied to the prepared wall surface. The glue is leveled on the wall with a notched trowel; its width should be equal to, or better if larger than, the size of the part. The ridge lines on the adhesive layer should not intersect with each other, since an air bubble may form in this place.

The tile is placed on the glue and pressed tightly against it. The starting plate must be carefully aligned on the plane: it must be installed at the same distance from the wall along the perimeter. The corners of a part installed diagonally should be placed strictly on the axial vertical line marked earlier.
If the plate is skewed, alignment must be done by pressing on it. As a last resort, you can calm it down by carefully tapping it with the striker of a rubber mallet.
The next elements are installed triangular fragments from tiles cut in half diagonally. Plastic crosses are installed in the gap between the plates - two pieces per side. The coincidence of the plane of each subsequent part is controlled by a short bubble level, and the overall flatness is controlled by a long construction level.

The upper end of the cladding is formed entirely by cut fragments, so it must be finished with cornice elements. You can select cornices according to size and shape on the construction market.
A responsible operation - cutting the plate - is performed on a special device - a tile cutter. You can, of course, use a glass cutter, but it is much more difficult to get required quality cutting.

Diagonal laying of the coating in the bathroom allows you to obtain the most decoratively perfect compositions.

Lay out in a checkerboard pattern

With this method of placing tiles, the seams between the individual plates are located parallel to the intersections of the walls. This method involves cutting the plates to the size of the remaining gap.

This is not economical, especially if they are decorated with an asymmetrical pattern and the remains have to be thrown away. Therefore, checkerboard laying is used for tiles of small diameter and different colors, which allows you to create original compositions.

But before you use online calculator, you need to take all the measurements of the room and get a clear idea for yourself about the design of your bathroom.

How to use the online tile calculator?

This program is presented in the form of a table, into which you need to enter data on your bath for calculation:

Geometric parameters of the room - length, width of the room and finishing height.
Doorway dimensions.
Window opening dimensions.
Dimensional parameters of the bath.
Should the side walls of the bath be tiled? - "Not really".
Selecting a layout type. There are several options: classic, plain - involves the use of tiles of the same color, combined - uses several colors.

Data on the parameters of the bathroom such as the height of the walls, etc. are entered in meters.

The dimensions of the openings for the door and window are subtracted from the total area to be finished.

Dimensions of the bathtub - it is necessary to indicate whether its sides and the floor under the bathtub are subject to finishing.

Layout options:

classic way provides for finishing the room with material of several colors, separated using a border;
with a monochromatic finish, the use of decorated inserts is provided;
in the combined version, the finishing involves the use of plates of three or more colors.

Thus, the built-in calculator provides a wide range of possibilities for realizing your design ideas.

The size of the plates must be indicated in millimeter units. Decorated plates are counted individually.

To calculate the need for materials for curbs, their location along the entire coverage along the generatrix when laid horizontally, as well as along the entire vertical, is taken into account.

It is also necessary to indicate the reserve of the main material - usually the value is 5-10% of the total quantity.

Laying with offset

This method is used quite often, including in combination with those described above. This method does not bring anything fundamentally new to installation technology.

The calculation of the need for materials remains the same - according to the covered area. This installation method is reminiscent of brickwork and is most applicable when working with rectangular monochromatic tiles.

But the method using mosaic inserts provides an undoubted advantage.

The effect of offset lines makes it possible to make styling defects less noticeable.

Final work

Finishing operations do not depend on the installation method. In any case, you will need to seal the seams between the tiles. For this purpose, a special material is produced - grout.

It is usually sold in finished form, packaged in jars. Each manufacturer recommends a certain grade of this material and these tips should be followed.

The grout is applied to the joint space using an elastic rubber spatula. Having collected a little mass on the tip of this tool, you need to rub it into the crack in the transverse direction.

When the gap is evenly filled to the full depth, clean the spatula and use a longitudinal movement to free the surface of the tile from grout residues. Afterwards, you can use a damp sponge and completely clean the surface.

How to take into account door and window openings

In built-in calculators, this calculation operation is embedded in a program that will automatically and correctly calculate the number of tiles that would be placed in these places.

But if the calculation is made independently, it is enough to take into account the total area of free openings and divide it by the area of one tile. The result obtained in pieces of plates must be subtracted from the amount of materials to cover the total area.

In this case, there is no need to take into account the installation method - remember that about 5% of the reserve is always included in the calculation. It will serve as a compensating factor for the error in the calculation.

Calculate the need for plastic corners

When working, two crosses are installed on each side of the tile. In this case, each pair works on two tiles. The simplest calculation: divide the number of tiles by two and get the required number of inserts.

We multiply the result by 15-20%, since this little thing tends to get lost as work progresses. The costs for them are so minuscule in comparison with the others that it would not be worth talking about them.

Calculate glue and grout requirements

The issue of the need for grout for bathroom tiles can be considered purely theoretically. After all, its quantity is as insignificant as the spacer crosses.

The consumption rate of this material is indicated on the packaging, and you can use these data as a guide when purchasing.

Another thing is tile adhesive. It can be sold as a dry mixture in bags and bags, or ready-made in plastic buckets. Naturally, the consumption rate per square meter is available on the packaging. But this is an average.

The actual consumption may be slightly different, depending on the quality of the surface being covered. If there are multiple places where the tiles have to be leveled due to the thickness of the adhesive layer, the consumption of binder for its installation will be significantly increased.

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If you decide to lay tiles on the floor, then the first step is to walk around all construction stores. Then he takes a closer look suitable option. And then many realize that the worst difficulties are yet to come. Rises main question– how to calculate ceramic tiles for the floor and how much to buy so that there is nothing left over.

Why is this necessary?

The thing is that the process of laying floor tiles is more complex than wallpapering walls. Most people, who very rarely face serious repairs, are sure that it is enough to purchase such a quantity that there is only enough material to spare, and if there is not enough, then purchase the missing amount. But professionals do not recommend this approach.

The production technology of such a material as ceramics is quite complex. In different batches of products, the same pattern from the same manufacturer or brand may have different shades. It is far from certain that you will be able to purchase tiles with the required shade.

You can easily get out of this situation if you purchase ceramics with a reserve, but the cost of high-quality tiles is quite high, and if there is a lot of material left after the work, it is unlikely to be returned. Keeping it at home is also a bad option. There is only one correct way out - this is to spend an hour of time and calculate the quantity ceramic tiles on the floor.

Let's start the calculation

There are simply no unique methods and formulas. The thing is that the final amount of materials depends on a huge number of factors. Many will say that it is enough to know the area of the room - but not everything is so simple. It is very important what configuration the subfloor has, what kind of finishing floor is planned, what size one tile is, whether the base is ideal for the installation process, and of course, the pattern is very important.

Method No. 1

First of all, let's see how you can count the tiles in the bathroom on the floor. The house is a typical high-rise building. Often, in standard premises The size of the bathroom is approximately 1.75 m x 1.7 m. Let's imagine that this room has a classic rectangular shape without any protrusions or niches. Let the tiles also be of a standard size - 333 x 333 mm.

Next, read the area, 1.75 m multiplied by 1.7. The result is 2.975 m. This value can be safely rounded to 3 m2. So, according to preliminary calculations, it turns out that only 27 whole tiles will be needed for finishing. However, there are nuances here - you need to count individually.

To do this, the width of the rectangle is divided by one of the sides of the ceramic tile - 1.7 m/0.333 mm = 5.1 pcs. This value can also be rounded - the result is 5.5 pcs. Then, the same calculations are performed for the other side. After rounding, the same figure is obtained - 5.5 pcs.

Next, you should multiply the results obtained. So, 5.5 x 5.5 = 30.25 pcs. You can round the value up again. So, the end result is 31 tiles. As can be seen from these calculations, the results differ greatly by as much as 4 pieces. It is not at all necessary that the length of the row during the laying process be a multiple of the length of one tile. Using this method, you can calculate the exact number of tiles for any floor.

In addition, one should take into account production defects, as well as various waste, because when laying the tiles you will have to cut them. It is worth adding to this also various niches in the room, as well as ledges. They can be quite complex configurations. As a result, it is worth taking 34 pieces. The most economical installation method is the seam-to-seam method without any shifts. However, here too you need permission for various expenses.

When laying, do not try to make seams along the lines of the walls. If the wall is not too smooth, then visually, from the cut, this unevenness will be very visible.

If you decide to do all the work yourself, rather than take the help of qualified specialists, but have no experience in this matter, you should not take on complex ornaments and designs. It’s best to start with classic solutions – butt-to-edge.

Method No. 2

The first method is simple. And the second one is even simpler and is suitable even for lazy craftsmen. In many construction supermarkets, as well as in decent online stores, you can calculate floor tiles using a special calculator. This simple program, which can make life much easier.

However, the calculator will only help you perform necessary calculations. You will still have to take accurate measurements of the premises, otherwise inaccurate dimensions may lead to incorrect results. And such calculators are needed for accurate calculations. The best option, of course - count everything manually. Then, having received the final figure, you can check the program. If there are minor discrepancies, then everything is correct.

Method No. 3

This method can be used when laying tiles with a rather complex pattern. It can be a herringbone pattern or the pattern runs diagonally across the tile. Also, this method is suitable if the floor does not have the shape of any regular geometric figure.

Naturally, you can divide the floor surface into more simple figures, and then perform the calculation using the first method for each piece separately, and then simply add up the results obtained and calculate with a minimum 15% margin required amount material. However, this is not an accurate and time-consuming option.

Tile laying specialists, based on experience, recommend using a checkered sheet or graph paper. An exact copy of the floor is drawn on it on a convenient scale. Then, according to the intended drawing (while respecting the scale), you should draw out exactly where each tile will be laid.

After this, all solid tiles are counted, and marks are set on the plan. Tiles that will then be cut to less than half are marked separately, since 1 tile (if cut) can be laid in two places.

This way you can find out exactly how many ceramic tiles you will need to finish the floor in any room. It is very convenient to know this figure in advance - then you can purchase the strictly required amount of material and a little more in case of defects.

We count the glue consumption

When laying ceramic tiles, many factors influence adhesive consumption. This includes the type of tile, its thickness, the quality of the base and the laying technology. Also, the type and brand significantly influence the consumption. adhesive composition, weather, master's qualifications.

Tiles can be porous and hygroscopic. The base may not be level enough. Porous tiles can absorb more adhesive solution than glazed. Many manufacturers offer to purchase universal glue that is suitable for different types ceramics. You should pay attention not to products with an uneven surface - such tiles require a lot of glue.

Ceramic tiles of larger sizes and weight will increase consumption. So, for a product 10x10 cm with a layer of adhesive solution it should be 2 mm. If the tile has a size of 20x30, it will be from 2 to 3 mm. For all products that have larger size, the adhesive layer is from 4 to 5 mm.

The base on which the tiles will be laid must be as level as possible. If the height differences are up to 3 mm, then thin-layer laying technology can be used. This is where the glue is applied thin layer just so that the tile adheres to the base. If the height differences are large, then the layer thickness will be greater. However, modern manufacturers produce special leveling compounds. They are applied in a layer of up to 3 cm. This is a thick-layer technology.

The first method involves a special calculator, which is necessarily available on the manufacturer’s website. With its help, you can easily determine the amount of adhesive solution per 1 m2 and for the entire area of the room. You just need to provide the program with information about the brand of adhesive, surface area and type of tile. The result is given in kilograms.

According to the second option, you will have to count manually. If you need to know the amount of glue per 1 m2, you need to take half the thickness of the tile and average consumption adhesive composition. These numbers need to be multiplied and the result will be ready. However, it should be borne in mind that the obtained figures are not very accurate.

The third method calculates the glue consumption per cement based. It is better to purchase these compounds in bags weighing 1.3 kg. So, its mass of 1.3 kg should be multiplied by the thickness of the glue. The number will ultimately be the required expense.

The average consumption is written on the bag. However, this figure was obtained on an ideal base and an adhesive layer thickness of 3 mm. For example, for 21 sq. m. about 76 kg of mixture can be consumed. However, ideal subfloors in apartments are still worth looking for. Therefore, glue must be purchased in large quantities. But this is not entirely important, because the material can be purchased at any convenient time.

We calculate the grout consumption

Grouting the joints is the last stage of installation. To correctly calculate the amount of grouting materials, you can use a simple formula.

So, take half the perimeter of one tile and divide this figure by the area of the same tile. The resulting figure is then multiplied by the thickness. The result is multiplied by the width of the seam, and then multiplied again by the shrinkage factor. This coefficient is 1.5. As a result, the required mass of materials per 1 m2 in kg is obtained. So, if the seam is 2x3 mm, the tile area is 0.04 m2, then judging by the calculations, 1 kg of grout mixture should be enough for 3.5 square meters. m.

Getting started finishing works in the bathroom, you first need to calculate and purchase the required amount of material. It is advisable to buy the entire volume at once, since the next batch may differ in tone, so calculations must be made very accurately. In this case, tiles are used to finish the walls and floor. Manufacturers offer material of various shapes and sizes. The number of tiles needed for the bathroom will largely depend on which collection is preferred. There are several calculation methods that we will introduce you to today.

Preparatory stage

Before you begin the calculation, you need to carefully measure the bathroom using a tape measure or rangefinder. The following parameters are required for the calculation:

Wall height.
Width of walls.

If the walls have correct form, it will be enough to make two or three measurements. If there are niches or various protruding elements, you will need to measure their parameters too and clarify the dimensions of the door.

Even if at first glance the walls seem perfectly smooth: square or rectangular, be sure to take several control measurements. This will avoid errors in calculations.

Required quantity of floor tiles

First way

Calculations begin with determining the floor area. To do this, its length is multiplied by its width. Then the area of one tile is calculated in the same way. After this, the first value is divided by the second, and the resulting result is rounded up. The result is an approximate value, which experts recommend increasing by 5%, multiplying by a correction factor of 1.05. The resulting value is again rounded to the nearest whole number.

As an example, consider a bathroom that has a ceiling of 2.65 m, walls of 1.8 m and 1.7 m and a door 0.6 m wide. In such a case, if floor tiles 33 cm by 33 cm, you will need: ((1.8*1.7)/(0.33*0.33))=28.1 pieces; 29*1.05"31 tiles.

Second way

We begin calculating the number of tiles for the bathroom by determining the number of tiles that will need to be laid in length and width. To do this, divide the length and width of the room by the length and width of the tiles, respectively. We multiply the resulting values by each other, round to the nearest whole number and also increase by 5%.

Based on the above example, we obtain the following sequence of calculations:

1.8/0.33=5.5 pcs.;
1.7/0.33=5.2 pcs.;
5.5*5.2=28.6 pcs.;
round the value obtained in step 3 to 29;
29*1.05=30.45 pcs., i.e. To finish the floor (after rounding up) you need to purchase 31 tiles.

If one of the calculation methods results in a larger value, you should choose it. However, it is worth noting that sales consultants prefer to use the first option.

Required quantity of wall tiles

First way

To determine how many bathroom tiles are needed for wall cladding, we calculate the perimeter of the room. To do this, we sum up the lengths of all its walls. If we are talking about a standard bathroom, just add the length and width and multiply by 2. In our example: (1.8+1.7)*2=7 m.

Based on the perimeter, the required number of friezes is calculated. To do this, the width of the door is subtracted from the perimeter of the bathroom. The resulting value is divided by the length of the frieze or border, respectively.

If you wish, you can save money by not covering the part of the wall located under the bathtub. In this case, it will be necessary to subtract the area pertaining to this area from the general calculations.

So, for example, assuming that the dark tiles will be laid to a height of 1 m, we find that the height of the light top will be equal to: 2.7 m -1 m – 0.08 m (frieze height) = 1.62 m. Now you can calculate the required number of tiles. For this:

We calculate the area that light and dark tiles will occupy.
We divide the resulting values by the area of one tile.
Round to the nearest integer value.
We increase by 5%.
Round to the nearest whole value.

In our example we will need:

Dark tiles: (7-0.6)*1/(0.2*0.4)=52.5 pcsÞ53 pcs * 1.05=55.56Þ56 pcs;
Light tiles: (7-0.6)*1.62/(0.2*0.4)=55.05 pcsÞ56 pcs * 1.05=90.3Þ91 pcs.

If planned decorative inserts, then the amount of light or dark tiles must be reduced by the amount of purchased decor

Second way

In this case, we lay out the layout of each wall to understand how many tiles can be placed in horizontal and vertical rows. In this case, the tiles that need to be cut are taken into account as whole. We increase the resulting value by 5% to insure ourselves in case of marriage or battle. We calculate the required number of dark, light tiles and borders and go shopping.

Thus, knowing the above methods, everyone can independently calculate how many tiles are needed for a bathroom. You just need to take the correct measurements, decide on the type of tile, as well as how it will be placed on the wall and floor.