The main concept of sheet piles is providing a retention job that will ensure the firm foundation of certain structures. Wherever a portion of land or water needs to be held back, steel sheets are wedged to withstand probable damage.

　　For example, in building foundations for high rise buildings, ground excavation is required. Once the earth’s layers are removed in deeper depths, an exceeded amount of terrain emerges and would otherwise collapse if not held back. This is where the use of sheet piles enters. They are driven side by side, creating a retaining border that withstands pressure and keeps the soil away from the structure. Variable designs of sheet piling are used for a specific retention job. When applied properly, this prevents the risk of erosion, landslides, and water breech.