Secure Your Project with an Structural Plastic Lumber Substructure

A joist is a horizontal structural board that is used to span an open space. In docking and boardwalk substructure, joists are installed between beams to help transfer load-bearing weight to other members and to support the top boards. Stringers are beams that run lengthwise and also help transfer weight for more even distribution and are typically installed on top of the joists.

plastic wood joist and stringer beams

Oftentimes, structural support beams like joists and stringers are exposed to high moisture. Bridges and docks are built over and in water and due to changing tides, sometimes these beams can be completely submerged. It’s important that joist and stringer beams can withstand consistent moisture and can also maintain structural integrity over time. Since these beams support heavy loads, it’s also important for the material to have the strength and load-bearing technical properties.

Traditional building materials like wood and metal provide structural integrity but can fall short in a wet environment. Constant exposure to moisture can rot and break down traditional wood, and metal will rust and corrode, which can leach harmful chemicals into the water, endangering the environment and sea life. Chemically-treated wood also will leach chemicals, so it’s best to use a material that isn’t treated at all.

hdpe plastic lumber fiber force product profile

Structural HDPE Plastic Lumber Benefits

Structural composite plastic lumber is engineered to overcome the most severe weather environments. Plastic lumber can be manufactured with added fiberglass stand and polymer rebar to increase rigidity. This creates a durable product that is best-suited for structural applications, like substructure components, where a wider span and dimensional stability are required. Plastic lumber is non-leaching and due to the durability and longevity of this material, it does not need to be replaced as often as traditional building materials.

Our Products are a Solution, Not a Band-Aid

Perennial Products

Our products can withstand year round weather conditions. They can endure the harshest of environments including rain, snow, extreme heat and extreme cold.

High Quality

Due to our manufacturing process, the color is engineered throughout the entire process so you will never have to worry about painting, staining or sealing our products.

not chemically treated
Not Chemically-Treated

Our products simply don’t need to be chemically-treated like wood does. Our product will never rot, splinter or degrade over time like wood can.

Impervious to Moisture

You can be confident in Bedford products because they can withstand high levels of moisture and are resistant to marine borers and crustaceans.

Our Products in Action

Support Your Top Boards with Bedford Technology!

For more information about how Bedford Technology products can work for your joist and stringer projects, contact us today! We are here to answer any and all questions you may have!