Zee Substructural Component

Cold-formed z-shaped structural member engineered for strength, precision, and flexibility.

McElroy Metal’s zee sections are cold-formed structural members that support roof and wall assemblies. Their z-shaped profile delivers excellent strength-to-weight performance and consistent fit-up for fast, accurate installation. McElroy Metal offers custom punching and optional pitched configurations to meet project-specific requirements.

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Zee Substructural Component Specs at a Glance

Shape Type:

Common Uses:

Web Dimensions:

Flange Widths:

Gauge Options:

Material:

Finishes:

Lengths:

Optional Features:

Cold-formed zee section

Roof purlins, wall girts, substructural framing

4", 6”, 8”, 10”, 12”

2”, 2 ½”, 3”, 3 ½”

12 GA, 14 GA, 16 GA

High-strength structural steel, ASTM A653 or equivalent

Red oxide primer or galvanized (G90)

5’ to 45’ (varies by facility)

Custom punching, pitching at some locations

Zee Substructural Component Ideal Applications

Roof purlins and wall girts in pre-engineered and cold-formed metal building systems.
Retrofit and new construction projects that require accurate substructural alignment.
Applications where customized punching or pitched configurations improve fit and performance.
Commercial, industrial, and agricultural framing systems.

Zee Substructural Component Top 3 Benefits

Custom & Special Punching: 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.
Pitched Zee Options: Select facilities can manufacture pitched Zee sections to align with roof slopes for accurate installation and reduced shim requirements.
Durable Finishes: Available in red oxide primer or galvanized coating for lasting corrosion resistance.

Literature
Product Info
SDS - Substrate & Paint
Submittals
Substructural Section Properties

Brochures/Flyers

2025 Product Catalog

Product Data Sheets

Substructural Parts Product Data

Product & Trim Information Books

Substructural Components Product Information Book

SDS - Substrate & Paint

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

Download All

Substructural Section Properties

Zees - Effective Section Properties Zees - Gross Section Properties

Standard Size & Gauges

4"-6" Web

4 " x 2" 16 & 14 Gauge

4 " x 2 1/2" 16 & 14 Gauge

4 " x 3" 16 & 14 Gauge

4 " x 3 1/2 16 & 14 Gauge

6 " x 2 1/2" 16 & 14 Gauge

8" Web

8 " x 2 1/2" 16, 14, & 12 Gauge

8" x 3" 16, 14, & 12 Gauge

8 " x 3 1/2" 14 & 12 Gauge

10-12" Web

10 x 2 1/2" 14 & 12 Gauge

10" x 3" 14 & 12 Gauge

10" x 3 1/2" 14 & 12 Gauge

12 " x 2 1/2" 14 & 12 Gauge

12 " x 3" 14 & 12 Gauge

12 " x 3 1/2" 14 & 12 Gauge

Notes & Manufacturing Locations

Manufactured in: Bossier City, LA; Clinton, IL; Winchester, VA; Adelanto, CA; Merkel, TX; Ashburn, TX & Sunnyvale, TX

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.

Can McElroy provide custom punching for zee members?

Yes. McElroy offers custom and special punching options to match your exact design, connection, and erection requirements—reducing field drilling and installation time.

Are pitched zee sections available?

Yes. Pitched zee configurations are available from select McElroy facilities to match roof slopes and improve structural alignment.

What finish options are offered?

Zee sections are available in durable red oxide primer or galvanized coatings for superior corrosion resistance.

How long can zee members be manufactured?

Standard lengths are available up to 50' @ all facilities except Bossier City, LA which offers 45’. Custom cut lengths available per project specifications.

Where are zee sections typically used?

Zee members are most commonly used as purlins and girts in metal building systems to provide structural support for roof and wall panels.

Can McElroy supply matching clips and fasteners?

Yes. A full line of compatible clips, fasteners, and substructural accessories is available to complete the system.

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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