You will need

- - calculate the total area of the surfaces to be covered with tiles;
- - the area of one tile.

Instruction

1

For accurate calculation it is necessary to calculate the surface area, which will be applied to the tile. For this is simple mathematical formula for grade 4. The surface area is calculated by multiplying the length and width. Considering the area of each wall, the results should be folded. Separately calculate area of doors and Windows, folded. The resulting figure deducted from the total score.

2

Next, you need to translate the tile size in the area. For this length multiplied by width. The result is translated in square meters. For example, it would look like. If tile length 40 cm, width 20, the area of one tile is equal to 800 centimeters. Translation in square meters is obtained 0.08 square meter. Or 40 centimeters is equal to 0.4 square meter multiply by 0.2 per square meter is obtained as 0.08.

3

Calculated the total area you want to cover with tile, you need to divide by 0.08. The resulting number is rounded to smooth the result. This will be the right amount of tiles.

4

For example, it would be so. If by calculating the area you need to cover the tiles turned 40 square meters, 40 it is necessary to divide 500 by 0.08 is obtained. So many pieces need to buy ceramic tiles.

5

To check this we can use another formula with retroactive effect. For the calculation, the calculated number of tiles is multiplied by its area. The result will be an area which can be closed off with tiles.

6

It should be remembered that when placing tiles on a flat range you need to buy for 5% more, and when laying on the diagonal – 15%. That is, in a calculated example when laying on a flat row is added to the total number of tiles 25, and the diagonally – 75 pieces.

7

Often these formulas to calculate are not required. It is sufficient to calculate only the surface area that you want to close a tile, and the material sold is calculated in square meters. Sometimes the cost of a tile is specified for 1 square meter or square feet. Therefore, knowing the total surface area and the percentage that you want to add in different types of masonry, you can easily buy the right number of tiles.