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Rooftop Support Blocks

Made from 100% recycled tires and pre-galvanized steel, these heavy-duty rooftop supports are built for long-lasting performance. Customize your roof supports system for a variety of applications, including gas, solar, HVAC systems, electrical conduit, roof walkways and more.

G-STRUT Rooftop Support Blocks feature innovative designs that are compatible with most rooftop materials and resistant to floating and shifting. Weatherproof materials inhibit damage due to freezing and thawing, and green reflectors enhance safety and visibility.

Explore the sizes and configurations of roof blocks available through Gregory Strut, or contact a member of our team today to discuss your needs.

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G-STRUT® Rooftop Support Blocks

Environmentally friendly
Made from 100% recycled tires

Durable & resilient
Built for continuous outdoor use

G-STRUT® Adapt-a-Block LightWeight (LW) Series

Adapt-a-Block gives you flexible options with the dependable support you expect from G-STRUT®. It’s easy to install, stabilize and align, offering a lightweight option in rooftop support blocks.

GAB1 Adapt-a-Block
Plastic Rooftop Block

Adapt-a-Block Benefits

The GAB1 plastic rooftop block from G-STRUT® provides a single block or interlocking, multiple base system for roof block variations to accommodate heavier applications and high-wind locations. Pipe grooves facilitate alignment and stabilize the conduit and pipes, while a self-locking nut feature allows quick installation.

See Adapt-a-Block Product Details

Product Details

  • Pre-assembled at factory
  • 14 gauge, 13/16" pre-galvanized steel channel
  • Uses standard strut fittings and clamps
  • 100% recycled rubber block
  • UV resistant materials
  • Green reflector for high visibility and safety
  • Innovative design inhibits floating and shifting
  • Freeze and thaw resistant
  • LEED certifiable product
  • Vibration dampening
  • Compatible with most rooftop materials
  • Gas Pipes
  • Solar
  • Cable tray systems
  • HVAC/Refrigeration
  • Pipe form systems



Hot-Dipped Galvanized

PVC Coated

Powder Coat (Green)


  • Standard: G134 (13/16" x 15/8", 14 gauge)
  • Other channel sizes and configurations:
    • G132 (13/16" x 1 5/8", 12 gauge)
    • G582 (1 5/8" x 1 5/8", 12 gauge)
    • G712 (2 7/16" x 1 5/8", 12 gauge)
    • GG812 (3 1/4" x 1 5/8", 12 gauge)
    • G582A (3 1/4" x 1 5/8", 12 gauge, back-to-back welded 1 5/8" channels)

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Proven Certifications & Associations

Group Affiliations

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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