Foundation for a small building

We will proceed from the fact that you already have a plan for a finished building and a plot for construction is cleared and prepared. First of all, we determine the composition of the soil, as well as the height at which groundwater is located. Dig a hole from 1m depth. The soil consists of stone, sand or gravel and water in the resulting pit — you can make the usual strip foundation 0.5m depth. If there is water, the foundation should be 0.5-1.2m.