Caltrans Spec Guardrail Posts & Blocks

  • 6”x8”x6’ Southern Yellow Pine or Douglas Fir, W-Beam Posts

  • 6”x8”x’6’ Southern Yellow Pine or Douglas Fir, Thrie-Beam Posts

  • 8”x8”x7’ Southern Yellow Pine or Douglas Fir, W-Beam Posts

  • 10”x10”x8’ Southern Yellow Pine or Douglas Fir, W-Beam Posts

  • 6”x8”x14” Southern Yellow Pine or Douglas Fir, W-Beam Blocks

  • 6”x8”x22” Southern Yellow Pine or Douglas Fir, Thrie-Beam Blocks

  • 8”x8”x14” Southern Yellow Pine or Douglas Fir, W-Beam Blocks

    Posts and blocks meet the requirements in Section 83-2.02(1)(c) in the Caltrans standard specifications manual. After fabrication, the wood posts and blocks must be pressure treated under section 57-2.01B(3) and AWPA U1, Use category UC4A, commodity specification A.