Substructural XL Component

Heavy-duty substructural members engineered for maximum strength, span capability, and fabrication efficiency.

McElroy Metal’s Substructural XL is built for projects that demand greater spans, heavier loads, and streamlined installation. Factory notching, custom punching, large webs up to 24”, thicknesses up to 10 GA, and lengths up to 50’ help Substructural XL reduce labor, eliminate secondary fabrication, and increase jobsite efficiency.

Substructural XL Component Specs at a Glance

Shape Type:

Common Uses:

Web Dimensions:

Flange Widths:

Gauge Options:

Material:

Finishes:

Lengths:

Optional Features:

Cold-formed Substructural XL section

Roof purlins, wall girts, long-span framing, mezzanines, platforms, and equipment supports

Up to 24”

2”, 2 ½”, 3”, 3 ½”

10 GA, 12 GA, 14 GA, 16 GA

High-strength structural steel, ASTM A653 or equivalent

Red oxide primer or galvanized (G90)

5’ to 50’ (varies by facility)

Standard Holes from 7/32” to 1 3/16”; Slot Punching from 5/8” x 3/4” to 7/16” x 2”; 2” and 3” Hole Punch to Accommodate Sprinklers, Conduit and Other Pass-Through Utilities

Substructural XL Component Ideal Applications

Large-scale wall and roof support assemblies.
Long-span framing, mezzanines, and high-load applications.
Retrofit installations that require increased structural capacity.
Industrial and commercial building environments with demanding performance requirements.
Applications supporting extensive pre-fabrication to reduce field labor.

Substructural XL Component Top Benefits

High-Capacity, Large-Format Profiles: Web sizes up to 24” and gauges from 10–16 GA deliver exceptional load-carrying strength and span capability.
Factory Flange Notching: Precision notching on top, bottom, leading, or trailing flanges eliminates costly field torching and secondary fabrication work.
Advanced Punching Flexibility: Multiple hole and slot configurations streamline installation, simplify utility pass-throughs, and eliminate most field drilling.

Literature
Product Info
SDS - Substrate & Paint
Submittals

Brochures/Flyers

2025 Product Catalog

Product Data Sheets

Substructural Parts Product Data

Product & Trim Information Books

Substructural Components Product Information Book Substructural XL Information

SDS - Substrate & Paint

Red Primer Safety Data Sheet Galvanized Safety Data Sheet Gray Purlin Safety Data Sheet

Download All

General Product and Warranty Information

Panel Load Tables w/Section Properties and Testing

Safety Data and Material Safety Data Sheets

Substructural XL Product Offering

10, 12, 14 and 16 gauge members with webs up to 24" enable value engineering and optimization opportunities.
Factory flange notching reduces costly secondary fabrication and/or field torching and cutting. Supports top and/or bottom flange as well as leading and/or trailing end.
Custom lengths from 6’ to 50' (except our Bossier, LA facility which has a 45' max length)
Flexible punching capabilities reduces costly field drilling.
- Standard holes from 7/32" to 1 3/16".
- Slot punching from 5/8" x 3/4" to 7/16" x 2".
- 2" and 3" hole punch to accommodate sprinklers, conduit and other pass-through utilities.

Please consult your McElroy Metal representative to discuss custom sizing options and lead time.

Notes & Manufacturing Locations

Manufactured in: Bossier City, LA; Clinton, IL; Adelanto, CA; Merkel, TX
- Clinton, IL & Merkel, TX: Max web of 16”
- Bossier City, LA & Adelanto, CA: Max web of 24”
McElroy’s industry-leading custom punching ensures precise hole patterns and exceptional fit-up, reducing field work and improving installation speed. Additional charges may apply.

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 makes Substructural XL different from conventional structural members?

Substructural XL expands the traditional range by offering thicker gauges, deeper webs, and factory-applied labor savers like flange notching and advanced punch capabilities, resulting in faster installs and reduced jobsite fabrication.

Can Substructural XL be value engineered for my project?

Yes. The wider web depths and heavier gauges allow engineering teams to optimize spans, reduce the number of members, and eliminate secondary support in many applications.

Do you offer both standard and custom punch patterns?

Yes. Our punching flexibility is among the best in the industry, supporting everything from standard fastener holes to custom utility layouts for sprinklers, conduit, and mechanical lines.

Are there length limitations?

Yes. Most facilities can produce custom lengths from 6’ to 50’, with our Bossier City location offering lengths up to 45’.

What applications are best suited for Substructural XL?

Substructural XL is ideal for long-span framing, mezzanines, platforms, industrial buildings, retrofit conditions, roof and wall sub-framing, and structures with extensive utility routing.

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.