Why pile diameter matters more than most people realise
Pile diameter is one of the most fundamental decisions in any CFA piling design. It directly affects how much load each pile can carry, how deep it needs to go to achieve that capacity, how much concrete is required, and ultimately what the foundation costs to build. It is not a number that gets picked from a standard list. It is calculated by a structural engineer based on the ground conditions at your specific site and the structural loads the pile needs to carry, and getting it right at the design stage avoids expensive changes once installation is underway.
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Helpful Information
Supporting information for residential projects, providing clear guidance on foundation solutions, design considerations and what to expect during installation.







