Our Galvanized Steel Bar Joists are precision-engineered structural solutions designed for heavy-duty floor and roof support in global industrial, commercial, and institutional projects. Combining hot-dip galvanized corrosion resistance with an open web design, these joists streamline construction workflows while ensuring compliance with international engineering standards.
Core Advantages
✅ Superior Corrosion Resistance
Hot-dip galvanized coating (minimum 550g/m²) ensures 40+ years of service life in coastal, chemical, and high-humidity environments.
✅ Pre-Engineered Efficiency
Factory-cut, pre-drilled components with ±2mm tolerance enable fast bolt-up assembly, reducing on-site labor by 25-40%.
✅ MEP-Ready Design
Standardized openings for seamless integration of electrical conduits, HVAC ducts, and plumbing systems.
✅ Heavy Load Capacity
Supports up to 10 kN/m² static load (span-dependent) with deflection control meeting L/360 standards.
Technical Specifications
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Material: ASTM A572 Grade 50 / EN 10025 S355JR steel
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Coating: ASTM A123-compliant hot-dip galvanization
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Span Range: 6m–30m (custom lengths available)
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Fire Rating: Up to 2 hours with optional intumescent coatings (UL/BS 476 certified)
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Design Standards: AISC 360 (US), EN 1993-1-1 (EU), AS 4100 (AU)
Global Compliance & Certifications
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CE Marking with Declaration of Performance (DoP)
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ISO 9001:2015 (Quality Management System)
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ICC-ES Evaluation Report (US & Canada)
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Third-Party Tested: Salt spray resistance (ASTM B117), load capacity (ASTM E72)
Typical Applications
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Industrial Facilities: Manufacturing plants, logistics warehouses, automotive workshops
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Commercial Spaces: Retail mezzanines, office expansions, data centers
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Infrastructure: Airport terminals, transportation hubs, sports arenas
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Harsh Environments: Coastal structures, chemical processing plants, cold storage
Why Choose This System?
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Time-Saving Installation: Pre-assembled kits with QR-coded components for error-free assembly.
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Zero Maintenance: Eliminates repainting costs with permanent galvanized protection.
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Sustainable Design: 92% recycled steel content with EPD (Environmental Product Declaration).
Customization Options
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Fireproofing: UL-certified spray coatings or gypsum board cladding
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Special Coatings: Zinc-aluminum alloy (ZM310) for extreme environments
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Accessories: Vibration dampers, acoustic insulation pads, seismic bracing
Packaging & Logistics
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Weatherproof Packaging: Corrugated steel edge guards + waterproof wrapping
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Export Compliance: ISPM 15-certified timber crating (optional)
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Documentation: Mill certificates (EN 10204 3.1), RoHS/REACH compliance statements