NU-Guard 31

NU-GUARD 31 is a strong post guardrail system used for roadside and median applications. It does not require offset blocks for 31″ rail height applications and utilizes RIB-BAK U-Channel posts instead of typical wood or steel I-Beam posts. The NU-GUARD 31 uses standard w-beam and is tested to NCHRP Report 350 and MASH criteria.

In stock

Features & Benefits

  • Tested to NCHRP 350 TL-3 & TL-4 and MASH TL-3
  • Does not require offset blocks
  • Can be installed on 6:1 slopes or less
  • RIB-BAK U-Channel posts are easier and faster to install than wood or I-beam posts.
  • RIB-BAK U-Channel posts available galvanized or powder coated.
  • Median configurations for 31″ rail height applications.
  • Through-bolt slot works to maintain rail height during impact


  • 31” w-beam height
  • 6’6” RIB-BAK U-Channel 5 lb./ft.; Nucor Grade SP-80
  • 6’ 3”  post spacing

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