First, specialists prepare the surface: level, clean, prime, remove chips and similar nuances. Then they start marking the surfaces. Then the adhesive is prepared and the work begins.
It should be understood that the wall and floor tiles are laid in the direction from the center to the edges, so that the appearance of the bathroom was harmonious. When laying from wall to wall, in 95% of cases there are leftover pieces of small width at the edge. This placement is acceptable if they are larger than half the size of the solid plate. If the size of your room can accommodate all the elements without trimming, you can start from the adjacent wall. In some other cases, use the rule that allows you to make the finishing of the highest quality. To do this, arrange the tiles in a row, remove the last and begin laying so that the center of the tiles went through the center of the wall or floor. In order to do this, the masters pre-mark the room.