Steel tube piles are rammed steel tubing, typically in dimensions of Ø508 mm to Ø1016 mm, but dimensions up to Ø1220 mm have also been used.

The piles can be rammed with the end closed with a driving shoe or plug, or open-ended.
After ramming, the tube is normally emptied of any loose material or water, reinforced and filled with poured concrete.

Steel tube piles can take great loads and stresses, depending on dimensions and reinforcement.

This type of pile is best suited when there:
•    are large loads
•    is ramming through infill and loose masses of coarse stones
•    are large rock depths
•    are no stability problems
•    is piling being done from a raft