
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.

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

GRB3500
- 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



If you would like to get started with G-STRUT® Rooftop Support Blocks, reach out to one of our trusted distributors today.

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

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