How many tiles to buy?

How many tiles to buy?

To calculate the required amount of tiles, you need to find out the surface area, multiplying its lengths by height, and subtract the area of ​​doors, openings and windows. At the same time, when buying material, take it «in reserve». The supply should be 12-13% of the total, and it is better to buy it immediately, so that later you do not encounter a problem when the main and additional parties differ in color, texture, pattern, etc. D. If angular elements are bought, their number is measured in linear meters, if planar — in square meters.