The steel sheet pile is a type of steel with a lock, and its cross-section has a straight plate shape, a groove shape, and a Z shape. There are cold-formed steel sheet piles and hot-rolled steel sheet piles. The models are WRU7, WRU8, WRZ16, WRZ18, etc.

Steel sheet piles are long structural sections with a vertical interlocking system that create a continuous wall. The walls are often used to retain either soil or water. The ability of a sheet pile section to perform is dependent upon its geometry and the soils it is driven into. The pile transfers pressure from the high side of the wall to the soil in front of the wall.