Roofing & Cladding · Steel Profile Sheets
Galvanized & PPGI Profile Sheets
Roll-formed GI and colour-coated PPGI roofing and cladding sheets in trapezoidal, corrugated and sinusoidal profiles.
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ShownGalvanized Z and C purlins in stock
Roofing & Cladding · Secondary Steel
Z & C Purlins
Cold-formed galvanized Z and C purlins and girts for roof and wall cladding support on steel buildings.
- Category
- Roofing & Cladding
- Group
- Secondary Steel
- Market
- United Arab Emirates
- Supply
- Quotation per enquiry
Product overview
Z & C Purlins: overview and uses
Z and C purlins are cold-formed, galvanized light-gauge steel sections that span between rafters or columns to carry roofing and cladding sheets. Z purlins overlap at supports for continuous spans; C purlins are used as simple spans, eaves beams and girts.
Purlins are the secondary framing of every steel shed: they sit on the main frame, hold the sheets, and brace the rafters. Cold forming from galvanized strip makes them light, straight and corrosion-protected without painting.
OGB supplies Z and C purlins punched to the project drawing, with cleats, sag rods and bolts where required. Depth, gauge, length and hole pattern are confirmed per enquiry.
Characteristics
Why Z & C Purlins works in the UAE
Z for continuity
Z sections nest and lap over supports for longer, stiffer runs.
Punched to drawing
Bolt holes, cleat holes and sag-rod holes pre-punched.
Galvanized strip
Z275 coating on the strip before forming; no site painting.
In the field
Z & C Purlins on site
Technical data
Specifications
Share your required size, quantity and finish in the enquiry form and OGB confirms availability in writing.
Enquire about Z & C Purlins| Material | Hot-dip galvanized strip, S280GD – S350GD (EN 10346) or ASTM A653 Gr 50 |
|---|---|
| Thickness range | 1.5 mm – 3.0 mm |
| Section depth | 100 mm – 400 mm |
| Flange width | 50 mm – 100 mm with stiffening lips |
| Length | Up to 12 m, cut and punched to drawing |
| Zinc coating | Z180 – Z275 g/m² |
| Accessories | Cleats, sag rods, eaves struts, bridging, bolts |
Available options
- Pre-punched hole patterns per drawing
- Sag rods and bridging
- Black (unpainted) or primed sections on request
- Lipped and plain channel variants
Questions
Z & C Purlins: common questions
Z purlin or C purlin: which one do I need?
Z purlins are used on sloping roofs where they can be lapped over the rafters to form continuous spans, which reduces deflection. C purlins suit single spans, wall girts, eaves beams and framing where a flat back face is needed, such as against a wall or a floor.
What purlin spacing is used for sheet roofing?
Spacing follows the sheet load table and the wind design; 1.2 m to 1.8 m centres are common for 0.5 mm trapezoidal roofing in the UAE. The structural engineer confirms the spacing and the purlin size.
Can purlins be supplied cut and punched?
Yes. Supply the purlin schedule or drawing with lengths, hole positions and cleat details, and sections are delivered ready to bolt.
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Request a quotation
Request a quotation for Z & C Purlins
Share your drawings, bill of quantities or a simple list of items. OGB confirms sizes, finishes and availability and returns an itemised quotation.