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GRB212 Riser Rod Platform

Support block with strut, 12” riser, and load distribution plate

Need a lift? The G-STRUT© 200 Series combines our standard roof block and channel with riser rods and load distribution plate (LDP) to give your systems and equipment extra height and support. Made of weather-resistant materials and engineered to dampen vibrations, G-STRUT® rooftop support blocks are made for long-lasting outdoor service.

Call the team at Gregory Strut to find out more about how the GRB212 can support your project’s needs.

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The GRB212 gives you 12” of height with a pre-galvanized steel strut channel and riser rods on a recycled-rubber base. Compatible with standard strut fittings and clamps, the GRB212 makes it simple to connect and support nearly any rooftop systems or equipment. Each block features reflectors for visibility and safety.


  • Single base with attached strut channel, riser rods, and LDP
  • 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”
  • Total height: 12”
  • Channel width: 1 3/4”
  • Channel length: 9 1/2
  • Materials: 100% recycled rubber base, pre-galvanized steel channel
  • Safety: Green reflector for high visibility
  • Weight: 7.1 lbs
  • Static load capacity: 500 lbs.
  • Ordering: 129 per skid
GRB212 Dimensions
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If you would like to get started with G-STRUT® Rooftop Support Blocks, reach out to one of our trusted distributors today.

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Have a Question?

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

Roof Blocks
G-STRUT® Rooftop Support Blocks

Explore our complete line of 100% recycled, LEED certifiable rooftop support blocks and strut channel solutions.