Is Trex Lighter Than Wood?


Trex is the name brand of one type of composite wood material. Because of the glue used to hold the fine, sawdust-like grains together, Trex has far different weight characteristics than most comparable decking materials.


  • Trex and other composites like Practiwood, NewTech and TimberTech are produced by binding waste sawdust together with a virgin PVC or polyethylene adhesive.


  • Trex is approved for use in non-structural items like handrails and decking. Trex must be regarded only as a covering when used for decking and applied over a substrate of wood or metal struts.

Trex Density

  • Trex has a nominal density of 60 pounds per cubic foot for solid boards, and 2-by-2 Baluster Trex is approximately 64 pounds per cubic foot.

Softwood Comparison

  • Trex weighs approximately twice as much per cubic foot as common softwoods like treated southern pine, cedar and redwood.

Hardwood Comparison

  • Hardwoods are much denser than softwoods and Trex's weight per cubic foot is nearly the same as oak, applewood or ash.

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