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GRB3500 Roller Stand Block

Rooftop support block with 5” roller stand

Stable, secure, and suitable for continuous outdoor use, the GRB300 series of rooftop support blocks from G-STRUT incorporate roller stands which allow your rooftop pipe applications longitudinal freedom of movement. We offer a range of sizes to suit your project, and every unit is weather-resistant.

Find out how the team at Gregory Strut can help you determine the right support block for your project—just reach out.

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Product Details

The G-STRUT GRB3500 model combines a 5” roller stand with 13/16” steel strut channel mounted to a recycled truck tire rubber base. Sturdy and heavy duty, G-STRUT block bases resist floating and shifting while the roller stand allows motion for pipe applications. High-visibility reflectors mark every unit for safety.

  • Single base block with strut and roller stand
  • Pre-assembled at the factory
  • 14 gauge, 13/16” pre-galvanized steel channel
  • Compatible with standard strut channel fittings and clamps
  • 100% recycled rubber block
  • UV-resistant materials
  • Green high-visibility reflectors for safety
  • Innovative design inhibits floating and shifting
  • Freeze and thaw resistant
  • LEED certifiable product
  • Vibration dampening
  • Compatible with most rooftop materials


  • Base length: 9 3/4”
  • Base width: 5 1/2”
  • Base height: 4”
  • Height to top of strut: 4 13/16”
  • Channel width: 1 3/4”
  • Channel length: 9 1/2
  • 5” roller stand
  • Materials: 100% recycled rubber base, pre-galvanized steel channel
  • Safety: Green reflector for high visibility
  • Weight: 5-10 lbs
  • Static load capacity: 500 lbs.
  • Ordering: 300-400 per skid

Proven Certifications & Associations

Group Affiliations

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AD Plumbing Logo
AD Electrical
NetPlus Alliance

Have a question?
Contact our Vice President of Gregory Strut, Bob Porter, to discuss your questions, goals and project requirements.

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