King MASH Composite Block 8″

The King Block is an 8″ injected molded offset block made of High Density Polyethylene (HDPE). It is used with strong post w-beam guardrail systems. The lightweight block is a substitute for 8″ wood spacer blocks and features self hanging fingers to help with installation. The King MASH Composite Block is MASH (2016) Test Level 3 compliant.

In stock

Features & Benefits

  • Test to MASH (2016) TL-3
  • Weighs less than other 8″ MASH blocks
  • Bottom tab supports rail during installation
  • Self-hanging fingers minimize the need for assistance by end-users during installation
  • Self-aligning side rails are designed to hold block in place and resist rotation
  • Designed to retain their original size over time, which helps reduce the frequency of retightening guardrail post bolts
  • Formulated with UV inhibitors, to reduce long-term degradation
  • Weather-resistant materials minimize damage related to rain, snow, and extreme cold/heat


  • 100 mm (W) x 350 mm (L) X 190.5 mm (D)
  • 4.6 lbs. (2.1 kg)

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