Tianjin Brisk Metalwork Co., Ltd. is one of the leading manufacturers and suppliers of galvanized square tubing for carports in China. We have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy bulk durable galvanized square tubing for carports from our factory.
Tianjin Brisk Steel is one of the manufacturers of galvanized square tubing for carports in China. Our products are mainly exported to the Middle East, Southeast Asia, Europe, New Zealand, and other regions.If you would like to learn more about our products, feel free to contact us and send your purchase list.
PRODUCT
Tianjin BRISK STEEL focus on produce and supply hollow section and steel pipe
Standard
| Standard | Commom Grade | Scope |
| ASTM A500 | GR.B / C | Structural square tubing (US market) |
| EN 10219/10210 | S235/275/355/420/460 | European structural hollow sections |
| JIS G3466 | STKR400/490 | Japanese standard for square steel pipes |
| GB/T 6728 | Q195/ 235/ 355 | Chinese standard for cold-formed hollow sections |
Common Sizes for Carports
- Carport framing uses sizes based on span, load (snow/wind, roof material), and post spacing:
| Feature | Specification |
| Posts (vertical supports) |
100×100×3.0mm, 80×80×2.5mm, 60×60×2.0mm |
| Rafters/Beams (horizontal) | 50×50×2.0mm, 40×40×1.5mm |
| Purlins (roof sheet supports) | 50×50×2.0mm, 40×40×1.5mm |
| Standard length | 6m (20ft), customizable cut-to-length |
Core Advantages for Carports
Core Advantages for Carports
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Corrosion resistance: HDG tubing typically lasts 20+ years outdoors with minimal maintenance, outperforming painted steel; ideal for year-round exposure to sun, rain, snow, salt spray.
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Structural efficiency: Square cross-section offers balanced bending/torsional strength, easy connection via welding, bolting, or bracket systems.
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Cost-effectiveness: Lower long-term costs vs stainless steel; no annual repainting needed.
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Versatility: Can be designed for single-car, double-car, or commercial multi-bay carports; compatible with metal sheets, polycarbonate, or fabric roofs.
Selection & Sizing Tips
Selection & Sizing Tips
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Load calculation first: Determine local snow load, wind speed, roof material weight, and span (e.g., 4m span needs thicker walls than 2.5m span).
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Prefer HDG over pre-galvanized for carports: thicker zinc coating (300–600g/m² vs 40–120g/m² for pre-galv), better edge coverage, longer service life.
- Wall thickness: Avoid <1.5mm for main structural posts/beams; 2.0–3.0mm is recommended for residential carports in moderate climate zones.
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