It is the responsibility of the structure designer (builder, contractor, architect, etc.) to lay out the piles before the installation team arrives. We can propose a pile layout, but it must be validated by the structure designer. However, for simple and light structures (normal terrace, extension, etc.), we can make the location of the piles that you will have to approve.
Techno Metal Post makes life easier for anyone with a construction project that requires a foundation in almost any type of soil.