China C/Z/U Purlins - Quality Roof & Wall Framing Solutions from Leading Suppliers and Factory
🏗️ Types of Purlins & Their Advantages
C C Purlins (C-Sections)
Feature a C-shaped cross-section with equal flanges. Ideal for secondary framing in roofs and walls. Easy to install and compatible with bolted connections. Commonly used in light to medium-duty structures.
Z Z Purlins (Z-Sections)
Designed with a Z-shaped profile for enhanced overlapping capability. Provide superior load distribution in long-span roofing systems. Allow for efficient nesting during transport and storage. Preferred for large industrial and agricultural buildings.
U U Purlins (U-Channels)
U-shaped design offers excellent versatility. Frequently used as edge trim or secondary supports. Suitable for both vertical and horizontal applications. Provide clean, finished edges in wall and roof systems.
⭐ Key Benefits of Steel Purlins
| Feature | Benefit |
|---|---|
| High Strength-to-Weight Ratio | Supports heavy loads while reducing structural weight |
| Corrosion Resistance | Often galvanized for long-term durability |
| Cost-Effective | Lower material and installation costs compared to hot-rolled sections |
| Design Flexibility | Compatible with various cladding materials (metal sheets, sandwich panels) |
| Quick Installation | Pre-punched holes simplify assembly |
📍 Common Applications
- Warehouse and factory roofing systems
- Agricultural buildings (barns, storage facilities)
- Commercial complex frameworks
- Mezzanine floors and secondary support structures
⚙️ Technical Specifications
| Materials | Typically galvanized steel (G550, G300) |
| Thickness | 1.2mm to 3.0mm |
| Standard lengths | Up to 12 meters (custom lengths available) |
| Load capacities | Designed per project requirements |
Why Choose C, Z, and U Purlins?
These purlins offer an optimal balance of strength, efficiency, and adaptability for modern construction. Whether you need the simplicity of C purlins, the spanning capability of Z purlins, or the versatility of U channels, these components ensure reliable performance while reducing overall project costs.
🏢 Company Advantages
Honglu Group, mainly focuses on the manufacturing of high-quality steel structure and the R&D of prefabricated technology.

Steel structure manufacturer
Daily capacity 15,000+ Tons

Efficient Production
10 Production Sites, 400+ Lines

High Quality Service
21 Years Experience, ISO Certified

Rich Product Chain
One-Stop Service Solutions
❓ Frequently Asked Questions
Before cooperation, you may have the following questions.







