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Steel
Backed Timber Guardrail
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manufacture and provide a full line of CCA Pressure Treated Southern
Pine Timbers and weathering steel components for steel backed timber
guardrail. Timber posts and rails are pre-fabricated with steel backing
plates attached prior to treatment. All components arrive at the job
ready for installation. Commonly used by the National Park Service,
this product is NCHRP 350 approved as a longitudinal barrier at TL-3
when blocked out or TL-2 when not blocked out.
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