Z-Section
Purlins

What Are
Z-Section Purlins?

Z-section purlins are lightweight yet high-strength structural members used in roofing and wall cladding systems.

Their distinct Z-shape makes them highly effective for overlapping, which allows longer spans and reduces the number of joints needed on site. This overlap feature not only saves time during installation but also ensures better load distribution across large structures.

Because of their efficiency, Z-purlins are widely used in commercial, industrial, and agricultural buildings across South Africa.

From warehouses to retail centres, you’ll find Z-sections forming the backbone of modern steel structures.

Our Expertise in Z-Section Purlins

At NJW Cold Forming, we specialise in the rolling, punching, and marking of Z-section purlins to the highest industry standards. We manufacture both Metsec purlins from 450Mpa material and commercial grade Z-section purlins, giving contractors and engineers the choice between performance-driven and cost-effective solutions.

Our production process is built around precision and consistency. Every Z-purlin we supply is designed for accuracy, reliability, and ease of use on site. Whether you’re building a retail warehouse, a farm shed, or a large commercial complex, our Z-sections are engineered to fit seamlessly into your project.

What Sets Our Z-Purlins Apart:

Rolling, punching, and
marking of
commercial grade
Z-sections for versatile
applications

Rolling, punching, and
marking of Metsec
Z-sections in 450Mpa
high-strength
material

Manufacturing of knee
stay and sag angle stays
in 450Mpa material to
provide additional
bracing and rigidity

Manufacturing of
Unistrut sections (P1000,
P2000, P4000 & P6000)
for versatile support and
framing needs

Nationwide distribution
across South Africa and
into Southern Africa,
ensuring reliable supply
wherever your project is

Why Choose NJW Cold Forming for Z-Purlins?

Steel is only as strong as the process behind it. At NJW Cold Forming, we combine advanced cold forming technology with decades of industry experience.

By focusing on quality control, accurate punching, and clean roll forming, we provide purlins that don’t just meet specifications, they exceed expectations on site.

Contractors trust us because:

• We manufacture locally in Pretoria, which shortens lead times

• Our purlins are consistent and dependable, reducing installation issues

• We offer full technical support to ensure you get the right section for the right application

Real-World Applications of Z-Section Purlins

Z-sections are everywhere once you start looking. They’re commonly used in:

Industrial and commercial roofing – Spanning longer distances with fewer supports

Agricultural structures – Barns, sheds, and silos that need cost-effective strength

Warehouses and factories – Paired with C-sections for secondary framing

Retail buildings – Supporting wall cladding and roof sheeting

Because Z-purlins can be overlapped, they’re particularly valuable in large-span designs, reducing steel wastage and installation time.

Nationwide Distribution

No matter where your site is, we’ve got you covered. NJW Cold
Forming supplies Z-section purlins and related products across
South Africa and Southern Africa, ensuring reliable delivery and
consistent quality for every order.