Thrie Beam Guardrail

Thrie Beam is a standard guardrail panel used as a longitudinal barrier to keep errant vehicles on the roadway. Instead of a two-wave design like W-Beam rails, Thrie Beam rail features a three-wave cross sectional design for added strength and durability and is often used in transitional areas like bridge approaches. It is made of galvanized steel and is available in 10-gauge and 12-gauge steel.

In stock


  • 20” (508 mm) rail height 
  • 31” guardrail mount height
  • Three-wave design
  • 12’6” or 25” lengths
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