The layer thickness is approximately 0.3 m.

At the place where the house will stand, it is necessary to clean. The surface layer of the earth must be removed. The layer thickness is approximately 0.3 m. To align the site. Then you can start marking. Put pegs on the angles of markings. After that you can start digging. Before pouring the foundation, the bottom of the pit is covered with sand, and then tamp.