When you are planning an industrial shed, factory building, or a pre-engineered structure in Bangalore, two components quietly hold the entire roofing system together – C purlins and Z purlins. These cold-rolled steel sections are the secondary structural members that carry your roof panels, wall cladding, and insulation loads. Without the right purlin – right thickness, right galvanization, right dimensions – even premium roofing panels will fail early.

Metro Puf Industries, based in Doddaballapur, Bangalore, manufactures precision C and Z purlins alongside our full range of PUF sandwich panels and roofing sheets, giving you single-source supply for your entire building envelope.

C purlins and Z purlins are cold-formed, lightweight steel structural sections used as horizontal secondary framing members in industrial and commercial buildings. They are fixed between main structural frames and directly support roof sheets, wall panels, and insulated sandwich panels.

C Purlins – shaped like the letter “C” – are the standard choice for simple span applications like single-bay sheds, smaller warehouses, partition walls, and wall girts.

Z Purlins – shaped like the letter “Z” – are engineered for continuous span applications. Because Z purlins can be overlapped at support points, they deliver higher structural efficiency over long spans. This makes them the go-to choice for large industrial buildings, logistics warehouses, and PEB structures.

Both types are cold-rolled from high-tensile galvanized steel coil, conforming to IS 10748 for material grade and IS 801/811 for design.

Factory-Direct Supply from Doddaballapur We manufacture on our own roll-forming line – no third-party sourcing, no quality compromise, no middleman markup.

Matched to Our Panels Our purlins are dimensioned and spaced to perfectly match our PUF sandwich panels and roofing sheets, eliminating compatibility issues on site.

Coordinated Delivery Panels and purlins leave our factory together. No waiting for separate suppliers. No project delays.

Galvanized for Karnataka’s Climate Z275 / G90 galvanization protects against Bangalore’s high humidity and monsoon conditions, delivering rust-free performance for decades.

IS Standard Compliance Every purlin we produce meets IS 10748, IS 801, and IS 811, giving you documentation ready for structural approvals.

Q1. What is the difference between C purlin and Z purlin? C purlins have a C-shaped cross-section and are used for simple span applications like small sheds and wall girts. Z purlins have a Z-shaped cross-section, can be overlapped at supports, and are used for continuous span applications like large warehouses and PEB roofs where longer spans and higher load capacity are needed.

Q2. What thickness of C or Z purlin do I need for my project? Thickness depends on your span length, panel weight, wind load zone, and roof pitch. Standard industrial projects typically use 1.5mm to 2.5mm thickness. For large-span PEB structures, 2.5mm to 3.0mm is common. Our technical team will recommend the right specification based on your project drawings.

Q3. Are Metro Puf’s purlins galvanized? Yes. All our C and Z purlins are manufactured from Z275 / G90 galvanized high-tensile steel coil. This coating provides strong corrosion resistance suited for Bangalore and Karnataka’s humid climate.

Q4. What depth range is available? We supply purlins from 100mm to 250mm depth. Custom depths and lengths are available based on project requirements.

Q5. Can I source purlins and PUF panels together from Metro Puf? Absolutely – and this is one of our strongest advantages. Sourcing purlins and panels from the same factory ensures dimensional compatibility, coordinated delivery, and a single point of accountability for your project.

Q6. Do your purlins comply with IS standards? Yes. Our purlins conform to IS 10748 for material grade and are designed per IS 801 and IS 811, the relevant Indian Standards for cold-formed steel sections.

Q7. What is the typical lead time for supply in Bangalore? For standard specifications, lead time is typically 3-5 working days from order confirmation. Custom lengths or high-volume orders may require 7-10 days. Contact us for exact timelines on your project.

Metro Puf Industries supplies C and Z purlins to industrial shed contractors, PEB builders, project developers, and construction companies across Bangalore, Karnataka, and South India.

Call us: +91-9611257581 | 080-67166964 Email: info@metropufindustries.com Visit: metropufindustries.com