What is Steel Sheet Pile?
Steel sheet pile is a vital material in the world of civil engineering and construction, used to create strong, watertight barriers in soil. But what exactly is it, and why is it so important?
At its core, sheet pile is a steel product formed into interlocking sections that are driven into the ground to provide earth retention and excavation support. These sections are designed to "lock" together, forming a continuous wall that resists the lateral pressure of soil and/or water. The steel composition makes sheet pile especially strong and durable, allowing it to withstand extreme forces and last in harsh environments.
Applications of Steel Sheet Pile
Steel sheet pile is incredibly versatile. It’s most commonly used in:
Retaining walls – to hold back soil in deep excavations or on sloped terrain
Seawalls and bulkheads – to protect shorelines and waterfronts from erosion
Cofferdams – temporary enclosures built within bodies of water to allow dry work conditions for bridge or pier construction
Basement and foundation construction – for deep foundations in tight or urban environments
Underground parking structures, subways, and tunnels
Sheet pile’s ability to be reused also makes it ideal for temporary applications, offering both economic and environmental benefits.
Common Steel Sheet Pile Interlocks
Sheet pile comes in various shapes and profiles, each suited for specific conditions. The most common types include:
Ball and socket - this type of sheet pile interlock contains a “ball” and a “socket” which interlock to create an air-tight wall. Two of our most popular sheet pile options contain ball and socket interlocks: PZ & PZC sheet pile. Ball and socket sheet piles are often used for cofferdams, retaining walls, levees, and more.
Larssen - larssen interlocks feature indentions that connect to form tight structures, including cut-off walls, braced excavations, retaining walls, and more. AZ, NZ, ZZ, and hoesch sheet pile sections are our most popular larssen options!
Thumb and finger - thumb and finger interlocks are typically seen on “flat” sheet piles. They are typically connected to make circular designs. Though thumb and finger sheet piles are weaker than larssen and ball and socket,
These sections are available in different lengths, sections, and steel grades, depending on project needs.
Why Choose Steel Sheet Pile?
Steel sheet pile is favored for its strength, longevity, and adaptability.
Whether you're stabilizing the soil for bridge construction or digging deep in a downtown core, steel sheet pile is the go-to solution for lasting structural support and ground control.