The TGS (Trinity Guardrail System) is a strong post w-beam guardrail system used for roadside and median applications. It is mounted at 31″ and the w-beam attaches directly to the steel post eliminating the need for offset blocks. For installation, splices can be placed on or between each post. The TGS is NCHRP Report 350 Test Level 3 and MASH (2008) Test Level 3 compliant.

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Features & Benefits

  • Tested to NCHRP Report 350 TL-3 and MASH (2008) TL-3
  • Splice placement on or between posts 
  • Strong posts with weakening holes
  • Features countersunk head bolts


  • 31” guardrail height
  • 6’3” post spacing
  • Countersunk head bolts ⅝” x 1 ¾” (16 mm x 45 mm)
  • Standard w-beam guardrail W6 x 8.5 x 6” (W150 X 13 x 1, 830 mm)

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