What is piling in construction? Piling is the process of driving or boring pile foundations into the ground beneath a building that is under construction. These piles transfer loads from the structure to the ground, helping to support it. Pile foundations are often used where the ground is too weak to underpin the structure. What are pile foundations? Pile foundations are long, thin elements generally made of steel or reinforced concrete. They transfer the load through weak, compressible materia