
GRB3100 Roller Stand Block
Rooftop support block with 1” roller stand
G-STRUT’s 300 Series of rooftop support blocks features a weather-resistant roller stand secured to a pre-galvanized steel strut, allowing the support of pipe with longitudinal movement. Metal strut channel is compatible with standard fittings and clamps, while the heavy-duty rubber base dampens vibrations, protecting your roof. Let the team at Gregory Strut help you discover how the GRB300 series can support your project.

Give your rooftop pipes the freedom they need with the GRB3100. The GRB3100 base block includes a 1” roller stand that securely supports pipe, including insulated pipe, and allows for the movement necessary for these applications. The roller stand is mounted on 14-gauge steel strut channel and attached to the environmentally friendly base, which is compatible with most rooftop materials and is marked with green reflectors for safety and visibility.
- 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

GRB3100
- 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
- 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.