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      Sub-Girt Substructural Component

      Reliable panel support and spacing for wall and roof assemblies.

      McElroy Metal’s sub-girts provide consistent support for metal wall and roof panels, creating the spacing, alignment, and load transfer required in both new construction and retrofit applications. Their cold-formed shape makes them versatile, durable, and compatible with a wide range of cladding systems.

      Sub-Girt Substructural Component Specs at a Glance
      Shape Type:
      Common Uses:
      Height:
      Width:
      Gauge Options:
      Material:
      Finishes:
      Lengths:
      Optional Features:
      Cold-formed sub-girt section
      Panel support, retrofit framing, insulation cavity creation, and load-transfer support
      ⅝”, ⅞”, 1 ¼”
      5 ½”, 5 ¼”, 6”
      16 GA, 18 GA, 20 GA
      High-strength structural steel, ASTM A653 or equivalent
      Galvanized
      3’ to 30’
      N/A

      Sub-Girt Substructural Component Ideal Applications

      • Wall and roof panel attachment providing consistent fastening support.

      • Horizontal or vertical girt framing across a range of wall configurations.

      • Retrofit installations over existing walls.

      • Creating standoff or cavity space for insulation.

      • Load-transfer and reinforcement applications behind exterior panel systems.

      sub-girt_msg3_galvanized_2024-2

      Sub-Girt Substructural Component Top 3 Benefits

      1. Versatile Installation Options: Can be installed horizontally or vertically to match panel direction and project design.

      2. Multiple Gauges and Sizes: Available in several depths and thicknesses to meet load, span, and insulation cavity requirements.

      3. Compatible With Multiple Panel Systems: Works cleanly with McElroy wall panels, retrofit assemblies, and other secondary framing members.

      Standard Size & Gauges

      MSG-1

      Size: 5/8" x 5 1/2"

      Gauge: 16, 18 & 20

      Finish: Galvanized

      MSG-2

      Size: 7/8" x 5 1/4"

      Gauge: 18, 20

      Finish: Galvanized

      MSG-3

      Size: 1 1/4" x 6"

      Gauge: 18

      Finish: Galvanized

      Brochures/Flyers

      2025 Product Catalog

      Product Data Sheets

      Substructural Parts Product Data

      Product & Trim Information Books

      Substructural Components Product Information Book

      SDS - Substrate & Paint

      Galvanized Safety Data Sheet Gray Purlin Safety Data Sheet
    • Customize (Recommended) Download All

      • Customize your submittal package

      Click on your desired documents below to select them for your package.

      General Product and Warranty Information

      Panel Load Tables w/Section Properties and Testing

      Safety Data and Material Safety Data Sheets

      Substructural Section Properties

      Hat, Channel, Mac-Girt, Sub-Girt Effective Section Properties Hat, Channel, Mac-Girt, Sub-Girt Gross Section Properties
      Peachtree Solar-501-1

      Notes & Manufacturing Locations

      • Manufactured in: Lewisport, KY

      Find a Distributor

      Find a Distributor / Contractor Near You

      Whether you’re building a new home or planning renovations, a metal roof can deliver long-term cost savings and comfort. To explore your options and find the product that meets your aesthetic and budgetary needs, contact a McElroy Metal distributor or contractor in your area today. We can’t wait to help make your dream home a reality.

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      Frequently Asked Questions

      The questions below address common considerations and help guide product selection for your project.

      What is a sub-girt used for?
      It supports wall or roof panels, creates spacing for insulation, and provides load-transfer and alignment behind cladding systems.
      How is a sub-girt different from a Mac-Girt?
      Sub-girts are typically lighter-duty, while Mac-Girts are heavier-duty and used where higher loads or greater spans are required.
      Can sub-girts be installed horizontally or vertically?
      Yes. They are designed for flexible installation depending on panel layout and project needs.
      Do you offer multiple gauges and depths?
      Absolutely. Multiple options are available to accommodate insulation thickness, spacing requirements, and load conditions.
      McElroy Logo Emp Ownd Opt1_BLK-RED

      Why Choose McElroy Metal

      McElroy Metal is an employee-owned manufacturer with more than six decades of experience producing high-quality metal roofing, wall systems, and substructural components. Our nationwide manufacturing and service center network ensures consistent availability, responsive support, and dependable delivery. Built on a culture of craftsmanship and partnership, our products are engineered for long-term durability and trusted performance on projects of every size.

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