C-Shaped Purlins
1. Cross-Section Shape: Resembles the letter "C" with inwardly curled edges.
2. Features:
- Symmetrical structure, easy to fabricate and install
- Moderate bending resistance, suitable for small to medium spans
- Cost-effective with lower production costs
3. Common Specifications: Heights typically range from 100–300 mm, thickness 1.5–3.0 mm
4. Typical Applications:
- Light steel structure roofs/walls
- Temporary buildings
- Interior partition supports
Z-Shaped Purlins
1. Cross-Section Shape: Resembles the letter "Z" with one edge extending in reverse.
2. Features:
- Asymmetrical design, allowing overlapping connections
- 20–30% higher bending stiffness compared to C-purlins
- Can form continuous beams when lapped, ideal for long spans
3. Common Specifications: Heights usually 150–350 mm, thickness 1.8–3.5 mm
4. Typical Applications:
- Large-span industrial buildings (e.g., warehouses)
- Roofs requiring continuous purlin support
- High wind/snow load regions
Our company offers customized manufacturing services, including:
✓ Different coatings (galvanized/aluminum-zinc)
✓ Pre-punched holes
✓ Matching connector supply
For specific solutions, please provide project details such as span length and load requirements, and we will recommend the optimal purlin type.
