SteelPurlins
Cold-formed C and Z purlins and girts — galvanised secondary steel for roofing and wall framing.
Steel purlins are cold-formed secondary members that support roof and wall cladding between the main structural frames. We supply both C-section and Z-section purlins and girts, roll-formed from high-tensile galvanised steel to AS 1397, in a full range of depths and gauges. Sizes and bridging are selected to suit span and wind loading, with material certification provided for compliant construction.
Product Range
C-Section Purlins
Cold-formed C purlins for end bays, girts and applications requiring a single channel profile.
Z-Section Purlins
Cold-formed Z purlins that lap over internal supports for continuous, efficient multi-span roofing.
High-Tensile Galvanised Steel
Roll-formed from G450/G500 high-tensile steel with Z350 galvanised coating to AS 1397.
Full Size & Gauge Range
Depths from 100mm to 350mm in a range of base metal thicknesses to suit span and load.
Cut-to-Length & Bridging
Purlins cut to length with bridging, cleats and bolts available to complete the system.
Common Applications
- Roof purlins for sheds and warehouses
- Wall girts and framing
- Patio, carport and verandah framing
- Industrial and rural buildings
- Mezzanine and platform framing
Relevant Standards
- AS 1397 — Steel sheet and strip (hot-dip zinc-coated)
- AS/NZS 4600 — Cold-formed steel structures
- AS 4100 — Steel structures
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