C purlins, cee purlins and GI lip channels from 80 mm web, roll-formed in-house at Taloja MIDC and slot-punched to your drawing.
Web depths 80 mm to 300 mm, thickness 1.00 mm to 3.00 mm, GI and HR, in 250 MPa and 350 MPa grades (IS 2062 E250 / E350). The range starts well below a Z section’s 140 mm minimum, which makes C purlins the right choice for wall girts, eave struts and mezzanine framing.
Table of Contents
- 1. What Is a C Purlin?
- 2. Where C Purlins Are Used, and Where a Z Purlin Cannot Be
- 3. C Purlin Specifications
- 4. Size Chart and Weight per Metre
- 5. C Purlin Price in Mumbai and Navi Mumbai
- 6. GI or HR: Which to Specify?
- 7. Slotted Hole Punching
- 8. Why Buy From Acier Steel
- 9. Where We Supply
- 10. Frequently Asked Questions
Acier Steel Pvt. Ltd. manufactures C purlins, also called cee purlins, C sections, GI lip channels or MS purlins, at our Taloja MIDC plant in Navi Mumbai. We roll-form on a fully automatic line with servo drive and PLC control, supplying GI and HR C purlins cut to length and slot-punched to your drawing, with dispatch within 5 to 10 days.
Our C purlin range starts at 80 mm web, well below the 140 mm minimum of a Z section. That makes it the right choice for wall girts, eave struts, mezzanine framing, door and window framing, and the lighter secondary steel that a Z purlin simply cannot produce.
Figure 1: C purlin (cee purlin) section, manufactured in-house at Taloja MIDC. Web depths 80 to 300 mm, GI and HR.
| Web depth | 80 mm – 300 mm |
| Thickness | 1.00 mm – 3.00 mm |
| Material | GI (galvanized) and HR / MS (hot rolled) |
| Steel grade | 250 MPa and 350 MPa (IS 2062 E250 / E350) |
| Zinc coating | 80 / 120 / 275 GSM |
| Lip angle | 90 degrees |
| Length | Cut to order, up to 12 metres |
| Dispatch | Within 5 – 10 days |
What Is a C Purlin?
A C purlin is a cold roll-formed steel section shaped like the letter C, with a stiffening lip turned in at each flange edge. The lip is what makes it structural rather than just a folded channel: it stops the flange from buckling under load, which is why a lipped C section carries far more than a plain channel of the same weight.
At Acier Steel the C purlin lip is formed at 90 degrees to the flange, giving the square profile that sits flat on a support and bolts up straightforwardly.
C purlins are also widely known as cee purlins, C sections, C channels, GI lip channels or MS purlins. They are all the same product.
Where C Purlins Are Used, and Where a Z Purlin Cannot Be
Figure 2: Typical C purlin applications: wall girts, eave struts, mezzanine framing, warehouse and shed construction.
The C section works as a simply supported member, spanning between two supports and sitting flat on each. It does not lap over the support the way a Z section does. That makes it the correct choice wherever a single-span member is what the design calls for:
- Wall girts and side rails: carrying wall cladding on industrial sheds and warehouses
- Eave struts: at the junction of sidewall and roof
- Mezzanine floor joists: supporting decking sheets over a mezzanine
- Door and window framing: openings in PEB walls
- Roofs on smaller sheds: single-bay structures where continuity is not required
- Purlin for warehouse and PEB structures: secondary steel framing
- Ceiling and partition framing
- Solar mounting structures: purlins and support rails
- Racking, storage and general fabrication
There is one practical point worth knowing. A Z purlin cannot be made below 140 mm web depth, because the geometry of the nesting profile does not allow it. So for the whole 80 to 140 mm range, which covers most girt and framing work, a C section is the only cold-formed option available. We manufacture that full range.
For continuous multi-bay roofs where members lap over the supports, a Z section is usually specified instead. See our Z purlin page, or the purlins overview for both.
C Purlin Specifications
Figure 3: How to read a purlin size. D = web depth, B = flange width, L = lip, t = thickness. Example: C 200 x 60 x 20 x 2.0.
| Parameter | Specification |
|---|---|
| Profile | C section (cee purlin / lip channel), lipped |
| Web depth | 80 mm – 300 mm |
| Flange width | 30 mm – 100 mm (maximum 50% of web depth) |
| Lip | 10 mm – 25 mm |
| Lip angle | 90 degrees |
| Thickness | 1.00 mm – 3.00 mm |
| Material | GI (galvanized) · HR / MS (hot rolled) |
| Steel grade | 250 MPa · 350 MPa (IS 2062 E250 / E350) |
| Zinc coating | 80 GSM · 120 GSM · 275 GSM |
| Length | Custom cut to order, up to 12 metres |
| Punching | Slotted holes: 12×20 mm, 14×25 mm, 16×25 mm, 18×25 mm |
| Raw material | JSW · AMNS · JSPL, with Mill Test Certificates |
| Manufacturing tolerance | Web +/-1 mm · Flange +/-1.5 mm · Lip +/-2 mm · Length +/-5 mm |
Flange is limited to 50% of the web depth. At a C100 web the maximum flange is 50 mm; at C200 and above the full 100 mm flange is available.
Size Chart and Weight per Metre
Light sections: C80 to C140
These are the smaller sections used for wall girts, framing and light secondary steel. This is the range a Z purlin cannot cover. Column headings are thickness in mm; weight in kg per running metre.
| Section (Web x Flange x Lip) mm | 1.50 | 1.60 | 2.00 | 2.50 | 3.00 |
|---|---|---|---|---|---|
| C80 x 40 x 15 | 2.12 | 2.26 | 2.79 | 3.38 | 3.89 |
| C100 x 50 x 15 | 2.59 | 2.76 | 3.42 | 4.16 | 4.83 |
| C120 x 50 x 15 | 2.83 | 3.01 | 3.74 | 4.55 | 5.30 |
| C140 x 50 x 20 | 3.18 | 3.39 | 4.21 | 5.14 | 6.01 |
Standard sections: C150 to C300
| Section (Web x Flange x Lip) mm | 1.00 | 1.20 | 1.50 | 1.60 | 2.00 | 2.50 | 3.00 |
|---|---|---|---|---|---|---|---|
| 150 x 65–75 x 18–24 | 2.45 | 2.94 | 3.68 | 3.93 | 4.91 | 6.13 | 7.36 |
| 180 x 70–75 x 19–25 | 2.75 | 3.30 | 4.12 | 4.40 | 5.50 | 6.87 | 8.24 |
| 200 x 50 x 11–20 | 2.45 | 2.94 | 3.68 | 3.93 | 4.91 | 6.13 | 7.36 |
| 200 x 60–65 x 20–25 | 2.75 | 3.30 | 4.12 | 4.40 | 5.50 | 6.87 | 8.24 |
| 200 x 75–80 x 17–22 | 2.94 | 3.53 | 4.42 | 4.71 | 5.89 | 7.36 | 8.83 |
| 250 x 70–75 x 18–23 | 3.27 | 3.93 | 4.91 | 5.24 | 6.55 | 8.18 | 9.82 |
| 300 x 50 x 13–23 | 3.27 | 3.93 | 4.91 | 5.24 | 6.55 | 8.18 | 9.82 |
| 300 x 90 x 15–25 | 3.93 | 4.71 | 5.89 | 6.28 | 7.85 | 9.81 | 11.78 |
Weights are approximate and for indication only. Slot punching has not been considered; where slots are punched, actual weight will be slightly lower. For an exact weight and quotation, send us your requirement.
Working out your C purlin tonnage
Multiply the weight per metre by the total running metres required.
Example, a girt run: 60 pieces of C150 x 65 x 20 x 1.60 mm, each 5 m long = 300 running metres x 3.93 kg/m = 1,179 kg (1.18 MT).
C Purlin Price in Mumbai and Navi Mumbai
C purlin prices move with the steel coil market, so rates are quoted against current coil cost. As a general guide:
- GI C purlins: approximately Rs 80 – Rs 96 per kg
- HR / MS C purlins: approximately Rs 65 – Rs 80 per kg
Within those ranges the price is driven by zinc coating (80 GSM at the lower end, 275 GSM at the upper), steel grade (350 MPa costs slightly more per kg than 250 MPa), thickness, and order quantity.
Cut-to-length and slot punching are included in our quoted rate. Because we roll-form in-house at Taloja MIDC and buy coil directly from the mills, you are buying at factory rates with no trader margin in between.
WhatsApp us for today’s C purlin rate: send your section size, thickness, grade, coating, length and quantity for a same-day quotation.
GI or HR C Purlins: Which Should You Specify?
| GI (Galvanized) | HR / MS (Hot Rolled) | |
|---|---|---|
| Corrosion resistance | Built into the steel | Requires site painting |
| Maintenance | Minimal | Periodic repainting |
| Best suited to | Coastal, humid and chemical environments; long-life structures | Sheltered inland structures; cost-sensitive projects |
| Relative cost | Higher | Economical |
Girts and side rails deserve particular attention here. Because they sit on the wall face, they are the members most exposed to driving rain and wind-blown salt on a coastal site, and they are the hardest to reach for repainting once the cladding is fixed. In Mumbai and Navi Mumbai conditions we recommend galvanized C purlins for all wall applications.
Steel grade: 250 MPa or 350 MPa
250 MPa is the standard grade and is entirely adequate for most girt, framing and light secondary work. 350 MPa is a high-tensile grade that can allow lighter sections for the same design requirements, subject to structural design.
Zinc coating: 80, 120 or 275 GSM
| Coating | Recommended for |
|---|---|
| 80 GSM | Interior framing, ceiling and partition work, dry inland locations, temporary structures |
| 120 GSM | Standard industrial sheds and warehouses, the usual choice |
| 275 GSM | Coastal belts, chemical and fertiliser plants, high-humidity environments |
The zinc layer is what stands between the structure and red rust. Within roughly 15 km of the coast, or in any chemical MIDC zone, we recommend not going below 120 GSM.
Slotted Hole Punching: Why It Matters on Site
All our C purlins are punched in line during forming, so hole positions stay accurate over the full length of every section rather than drifting the way site-drilled holes do.
We punch slotted holes as standard, in three sizes: 12×20 mm, 14×25 mm, 16×25 mm, 18×25 mm.
Why slots rather than round holes: a slot gives the erection team a few millimetres of adjustment at every connection. That absorbs the normal fabrication and setting-out tolerance in the main frame, so your crew bolts up instead of re-drilling, and far fewer sections come back for rework.
- Minimum distance between holes: 50 mm
- Standard edge distance: 35 mm
- Hole positions punched as per your drawing
- Plain un-punched C purlins available on request
C purlins are formed in a single continuous pass: coil enters the decoiler, runs through the forming stations, is slot-punched in line and cut to length at the end.
Why Buy C Purlins From Acier Steel
- Delivered on the date we promise: 98% on time, over half of it ahead of schedule.
- Bolts up first time: slots punched in line, to your drawing.
- Your section, not our nearest size: PLC size change, no tooling delay.
- Every kilo you pay for: Mill Test Certificate (MTC) with every dispatch.
- BIS-certified raw material: JSW, AMNS and JSPL coil, with traceability.
- Nothing waits on raw material: 40 years in the steel industry, sourcing any grade or thickness at short notice.
- Sections that sit flat: web +/-1 mm, lip +/-2 mm.
- The whole package: C purlins, sag rods, MS plates for cleats, roofing and decking sheets, polycarbonate, screws and ventilators from one source.
- Low freight, easy loading: Taloja MIDC in the heart of Navi Mumbai; trailers load directly at our plant.
🔗 Product Spotlight: C Purlins & GI Lip Channels by Acier Steel
Roll-formed in-house at Taloja MIDC on an automatic servo-driven, PLC-controlled line with in-line slot punching, cut to your exact schedule.
- Range: 80 mm to 300 mm web, 1.00 mm to 3.00 mm, GI and HR.
- Grades: 250 MPa and 350 MPa (IS 2062 E250 / E350).
- Also see: Z purlin manufacturer, Z & C purlins overview, colour coated roofing sheets, metal decking sheets and self drilling screws.
👉 Send Your Drawing & Get a Quote
40 years in the steel industry · Mill Test Certificates · Dispatch within 5–10 days from Taloja MIDC
Figure 4: Our automatic Z and C purlin roll forming line, servo driven, PLC controlled, with in-line slot punching.
C Purlin Supply Across Maharashtra
We supply C purlins and GI lip channels from our Taloja MIDC plant across Navi Mumbai, Mumbai, Thane, Panvel, Taloja, Kalamboli, Bhiwandi, Kalyan, Dombivli, Ambernath, Badlapur, Khopoli, Karjat, Raigad, Uran, Alibag, Pen, Pune, Chakan, Nashik, Palghar, Boisar, Vasai and Virar, with dispatch to Vapi, Surat, Daman and Goa.
Being located in Taloja MIDC, in the heart of Navi Mumbai’s industrial belt, keeps transport cost competitive and allows trailers to load directly at our plant.
Send your section size, thickness, grade, coating, length, quantity and hole details for a same-day quotation.
📞 Call Us Now 💬 WhatsApp UsFrequently Asked Questions
What is a C purlin used for?
C purlins are used as wall girts and side rails, eave struts, mezzanine floor joists, door and window framing, roofs on smaller single-bay sheds, PEB and warehouse framing, ceiling and partition framing, solar mounting structures, and general fabrication.
What is the smallest C purlin you manufacture?
Our C purlin range starts at 80 mm web depth. Z purlins cannot be made below 140 mm web, so for girts, framing and light secondary steel in the 80 to 140 mm range, a C section is the only cold-formed option.
Is a C purlin the same as a GI lip channel?
Yes. C purlin, cee purlin, C section, C channel, MS purlin and GI lip channel all refer to the same product.
What is the weight of a C150 purlin?
A C150 x 65 x 20 section weighs approximately 3.68 kg/m at 1.50 mm, 3.93 kg/m at 1.60 mm, 4.91 kg/m at 2.00 mm, 6.13 kg/m at 2.50 mm and 7.36 kg/m at 3.00 mm.
What is the current C purlin price per kg?
GI C purlins are approximately Rs 80 to 96 per kg and HR C purlins approximately Rs 65 to 80 per kg, depending on zinc coating, steel grade, thickness and quantity.
Can you make a C purlin with a 75 mm flange on a 100 mm web?
No. The flange is limited to 50% of the web depth, so at a 100 mm web the maximum flange is 50 mm. For a 75 mm flange the minimum web would be 150 mm.
Do you supply C purlins with pre-punched holes?
Yes. We punch slotted holes in line during forming, in 12×20 mm, 14×25 mm, 16×25 mm, 18×25 mm. Plain un-punched sections are available.
What is the difference between a C purlin and a Z purlin?
A C purlin sits flat on the support and works as a simply supported member. A Z purlin laps over the support to form a continuous member across multiple bays. C purlins start at 80 mm web; Z purlins at 140 mm.
How long does delivery take?
Standard dispatch is within 5 to 10 days from our Taloja MIDC plant. 98% of our orders are delivered on the promised date.
Are you a C purlin manufacturer or a trader?
We are a manufacturer. C purlins are roll-formed in-house at our Taloja MIDC plant in Navi Mumbai on our own automatic line, using coil bought directly from JSW, AMNS and JSPL.
Contact: sales@aciersteelpvtltd.com | +91 86557 03383 / +91 99308 85934 | Factory: A6/1, Taloja MIDC, Navi Mumbai, Maharashtra 410208