Galvanized C & Z Purlin
Cold-Formed Steel Purlins & Girts
Hot-dip galvanized C purlin and Z purlin for steel structure roofs and walls. C80-C300, Z100-Z350. Pre-punched, pre-cut to length. CE certified, mill direct.
Product Overview
C and Z purlins are the backbone of steel building roof and wall systems. Our cold-formed galvanized purlins are roll-formed from high-strength structural steel with hot-dip galvanized coating (Z275 minimum) for long-term corrosion resistance — ideal for industrial, commercial, and agricultural steel buildings.
C purlins are typically used for simple-span applications where lapping is not required, while Z purlins feature sleeved or overlapped connections for continuous-span design — reducing material weight and cost. Both profiles are available with pre-punched holes for swift bolted installation.
All purlins are manufactured to precise tolerances on automated roll-forming lines. Custom lengths, punching patterns, and notch details can be programmed for your specific project. Standard lead time: 15-20 working days from order.
Technical Specifications
| Profile Types | C Purlin (C80-C300), Z Purlin (Z100-Z350) |
| Steel Grade | Q235B, Q355B, G450, G550 (per AS/NZS 4600) |
| Coating | Hot-dip galvanized Z275 (275g/m²), Z350 available |
| Thickness | 1.5mm — 3.0mm (16ga — 10ga) |
| Length | Custom cut to project requirements (max 12m single piece) |
| Holes | Pre-punched bolt holes per project drawings |
| Splice Option | Z purlin: sleeved connection for continuous span |
| Standard | GB/T 6725, EN 10162, AS/NZS 4600 |
| Packing | Bundled with steel strapping, FCL/LCL ready |
Key Features
Applications
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Frequently Asked Questions
Common questions about galvanized c & z purlin
What is the difference between C and Z purlin?
C purlins are used for simple spans where lapping isn't needed. Z purlins have sleeved connections for continuous span design, reducing material weight.
What zinc coating is standard?
Z275 (275g/m2) hot-dip galvanized is standard. Z350 available for coastal environments.
Can you pre-punch holes?
Yes. Holes are punched per your project drawings — no site drilling needed.
What steel grades are used?
Q235B, Q355B, G450, G550 depending on span and loading requirements.
How long does production take?
Standard lead time: 15-20 working days for custom orders.
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