C/Z Purlin Manufacturer & Supplier in Indore — Cold Roll Formed Sections for PEB, Warehouses & Industrial Structures
Looking for a reliable C/Z purlin manufacturer in Indore? Ajmera Metals Pvt. Ltd. manufactures precision cold roll formed C and Z purlins from high-tensile galvanized steel, supplying PEB contractors, warehouse developers, shed manufacturers, and industrial construction firms across Madhya Pradesh and pan-India. Our purlins are available in web heights from 50 mm to 300 mm, in plain and perforated configurations, cut to your exact length with pre-punched hole patterns as per your design. Call +91 70241-55341 or use the enquiry form below for a quick quote.
What Are C and Z Purlins?
C and Z purlins are cold-formed steel structural members used to support roof decks, wall cladding, and roof sheeting in steel-framed buildings. Produced by cold roll forming — progressively bending high-tensile steel strip through forming rolls without heat — they offer a consistent cross-section and superior strength-to-weight ratio versus hot-rolled alternatives. In metal building systems, purlins act as secondary structural members that transfer loads from roof or wall panels to the primary steel frame.
C Purlin vs Z Purlin — Which Should You Choose?
A C purlin has a channel-shaped cross-section with a web, two flanges, and two lips. Best suited for simple-span applications: garages, carports, mezzanine floors, wall girts, and buildings with spans up to 7.5 m.
A Z purlin has a Z-shaped cross-section where the flanges extend in opposite directions. This geometry allows Z purlins to be lapped (overlapped) at supports, creating a continuous structural member ideal for long spans in PEB roofs, warehouses, and godowns — typically 7.5 m to 12 m and beyond.
C Purlin vs Z Purlin: Which Should You Choose?
Feature | C Purlin | Z Purlin |
Cross section | C-shape / channel | Z-shape / reverse channel |
Span type | Simple span (single bay) | Continuous / lapped span |
Overlap | Not over lappable | Can be lapped at supports |
Best for | Garages, carports, mezzanines, wall girts, smaller buildings | Large sheds, warehouses, PEB roofs, godowns, solar structures |
Typical span | Up to 7.5 m | 7.5 m to 12 m+ |
Installation | Slightly simpler — terminates at frame | Requires lapping at supports |
Cost | Generally lower for short spans | More economical for long spans |
Technical Specifications & Dimensions
Ajmera Metals manufactures C and Z purlins from high-tensile galvanized steel coils. All sections are produced on precision cold roll forming lines with hydraulic punching and automatic cut-to-length, ensuring tight dimensional tolerances suitable for PEB and structural applications.
C Purlin — Dimensions & Weight Chart
Section | Web Height (mm) | Flange Width (mm) | Lip (mm) | Thickness (mm) | Weight/m (kg) |
C100 | 100 | 50 | 15 | 1.6 – 2.5 | 1.88 – 2.93 |
C120 | 120 | 55 | 15 | 1.6 – 2.5 | 2.16 – 3.38 |
C150 | 150 | 65 | 15 | 1.6 – 3.0 | 2.78 – 5.22 |
C175 | 175 | 70 | 20 | 2.0 – 3.0 | 3.85 – 5.77 |
C200 | 200 | 75 | 20 | 2.0 – 3.0 | 4.50 – 6.75 |
C230 | 230 | 75 | 20 | 2.5 – 3.0 | 5.80 – 6.95 |
C250 | 250 | 80 | 25 | 2.5 – 3.0 | 6.42 – 7.70 |
C300 | 300 | 90 | 25 | 2.5 – 3.0 | 7.70 – 9.24 |
Note: Custom web heights, flange widths, and lip sizes available on request. All dimensions are nominal; actual sections may vary slightly based on order specifications.
Z Purlin — Dimensions & Weight Chart
Section | Web Height (mm) | Flange Width (mm) | Lip (mm) | Thickness (mm) | Weight/m (kg) |
Z100 | 100 | 50 | 15 | 1.6 – 2.5 | 1.80 – 2.82 |
Z150 | 150 | 65 | 15 | 1.6 – 2.5 | 2.70 – 4.22 |
Z175 | 175 | 70 | 20 | 2.0 – 3.0 | 3.70 – 5.55 |
Z200 | 200 | 75 | 20 | 2.0 – 3.0 | 4.35 – 6.52 |
Z230 | 230 | 75 | 20 | 2.5 – 3.0 | 5.60 – 6.72 |
Z250 | 250 | 80 | 25 | 2.5 – 3.0 | 6.20 – 7.44 |
Z300 | 300 | 90 | 25 | 2.5 – 3.0 | 7.40 – 8.88 |
Note: Z purlins are designed for lapping at supports. Lap length is typically 10-15% of the span. Pre-punched slot dimensions available as per client design drawings.
Material Grade & Standards — IS 811, ASTM A572, Yield Strength 345 MPa
Parameter | Specification |
Material | High-tensile galvanized steel (GI grade) / Carbon steel coil |
Indian Standard | IS 811 — Cold Formed Light Gauge Steel Structural Members |
International Grade | ASTM A572 Grade 50 / Equivalent high-tensile cold-formed grade |
Yield Strength | Minimum 345 MPa (50 ksi) — approx. 60% higher than hot-rolled mild steel |
Galvanizing Coating | Z275 (275 g/m² zinc coating) standard; Z600 available on request |
Surface Finish | Galvanized (corrosion-resistant), plain or pre-painted options available |
Length | Standard 6 m / 12 m; custom cut-to-length as per project requirement |
Punching | Plain (unpunched) or pre-punched (slots/holes) as per client drawing |
Range | Plain and perforated both available across all sections |
Applications
Pre-Engineered Buildings (PEB): Z purlins are the primary choice for PEB roofs — their lapping ability lets engineers optimise frame spacing and reduce total structural weight. We supply to PEB contractors in Indore, Pithampur, Dewas, Bhopal, and pan-India with pre-punched hole patterns matching PEB design software outputs.
Warehouses & Industrial Sheds: Wide-span warehouses and godowns are the highest-volume application for Z purlins in India. C purlins serve as wall girts in the same structures. We supply to warehouse developers, shed fabricators, and construction contractors across Madhya Pradesh.
Solar Mounting Structures: C and Z purlins are critical horizontal rails in solar mounting designs, providing a stable, corrosion-resistant framework for the 25-year life of a solar installation. We supply C/Z purlins alongside our dedicated solar mounting sections for complete project packages.
Mezzanine Floors, Carports & Commercial Construction: C purlins are ideal for mezzanine decking supports, carports, garages, and verandas — easy to connect to primary steel members and straightforward to erect.
Why Choose Ajmera Metals?
Manufacturer — not a reseller. Every section is cold roll formed in-house at our Indore facility. Direct manufacturer pricing, full quality traceability, no middleman.
Full range — 50 mm to 300 mm. Both plain (unpunched) and perforated (pre-punched) configurations across all web heights and thicknesses.
Custom lengths & punching. We produce to your exact length and punching pattern — slot positions, hole diameters, and spacings programmed to your structural drawing. No minimum standard length applies.
IS 811 compliant, 345 MPa yield strength. All sections conform to IS 811 with a minimum yield strength of 345 MPa — approximately 60% higher than hot-rolled mild steel.
Central India dispatch. Our Indore facility supplies Pithampur, Dewas, Ujjain, Bhopal, Mandideep, Ratlam, and all of India for bulk orders. Typical lead time: 3–7 days standard, 7–14 days custom.
Frequently Asked Questions
C purlins are simple-span sections for garages, mezzanines, and wall girts. Z purlins can be lapped at supports for continuous-span action in warehouses, PEB roofs, and solar structures. Both are cold roll formed from high-tensile GI steel and available in 50–300 mm web heights at Ajmera Metals.
We manufacture from 1.6 mm to 3.0 mm depending on web height and load requirement. Light-duty applications typically use 1.6–2.0 mm; heavy-duty PEB and warehouse use 2.5–3.0 mm. All sections conform to IS 811 with 345 MPa minimum yield strength.
Yes — plain (P), slotted (S), and dotted/punched (D) patterns are available. Pre-punched purlins eliminate on-site drilling and speed up erection for PEB, solar, and OEM assembly applications.
Yes — pan-India. We regularly supply Pithampur, Dewas, Bhopal, Mandideep, Ratlam, Nagpur, Ahmedabad, and PAN India for bulk orders. Contact us with your delivery location for a freight-inclusive quote.
For standard sizes in common thicknesses, smaller orders are accepted for local clients. Custom sections require a minimum production run — call us at +91 70241-55341 with your section, thickness, quantity, and delivery city for a specific MOQ and lead time.
Get a Free Quote for C/Z Purlin and Channels
- Call / WhatsApp: +91 70241-55341
- Email: info@ajmerametals.com
- Manufacturing Facility: Indore, Madhya Pradesh — Central India