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Sturdy and Durable Structural Grade Plastic Lumber

Find structural grade plastic lumber at Black Rhino Recycling. Made from fiberglass reinforced recycled high-density polyethylene (HDPE) plastic, structural grade plastic lumber is a great alternative to treated wood. It is made with plastic that typically comes from milk jugs and detergent bottles and is an ideal material to use for all types of heavy commercial infrastructure projects. Our structural grade plastic lumber does not contain wood.

Variety of Uses

Structural grade plastic lumber is commonly used for projects that require enhanced strength and durability. These include bridges, docks, decks, retaining walls, and boardwalks.

Features and Benefits

There are many features and benefits to structural grade plastic lumber, including:

Maximum strength and rigidity with the use of fiberglass reinforced plastic. Preferred material by end users looking to replace wood. It offers a clean and aesthetically pleasing look to your project. Available in a variety of colors that eliminates the need to stain or paint.

Additional features and benefits include:

  • 100% recycled HDPE plastic
  • Fiberglass reinforced
  • Buy once for long-term use
  • Termite proof
  • Waterproof
  • NO splitting or cracking
  • NO splinters
  • NO rot
  • NO replacement


  • Dimensions (*see spec sheet for full profile list)
  • Profile options: variety of options from 2x2 to 12x16
  • Length options: 6'. to 24' (vary by profile)