Sheet Pile Walls are thin retaining walls which are constructed to provide temporary or permanent lateral earth, water or other fill material retention. They are commonly used for excavation shoring, waterfront structures, cofferdams, riverbank protection or protection of foundations from water damage. Steel sheet piles are most commonly used and can be fabricated in several shapes.

Sheet piles are designed to interlock with each other. They are arranged together and installed in sequence along the desired design location. They are installed in the ground with the help of vibratory hammers, impact hammers in case of too dense or hard soil, or they can also be hydraulically pushed into the ground, if the ground conditions allow this. Depending on the design requirements and ground conditions, the sheet pile walls can be designed as cantilever or propped walls (anchored or strutted).

Some advantages of the sheet piles are that they are light, recyclable and reusable (thus are a sustainable solution), they are resistant to high driving stresses, their length is easily adjustable by welding or bolting and, finally, they can be used above or below water with little maintenance and a long lifespan.