Foundation blocks are used for foundations, load-bearing walls, cellars and fencing. After the concrete is poured in the middle, concrete or with rebar constructions can be formed into thickness of 150, 200, 250, 300, 400, and 500 millimetres. The pouring is done carefully and continuously with adequate consistency concrete mixture layer after layer up to the height of four layers of foundation blocks at one, i.e. the result can be up to a one-meter tall wall.