Corrosion-Resistant Steel Bar Joists for Floor Support - Pre-Engineered Galvanized Truss System

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

• Material: ASTM A572 Grade 50 / EN 10025 S355JR steel

• Coating: ASTM A123-compliant hot-dip galvanization

• Span Range: 6m–30m (custom lengths available)

• Fire Rating: Up to 2 hours with optional intumescent coatings (UL/BS 476 certified)

• Design Standards: AISC 360 (US), EN 1993-1-1 (EU), AS 4100 (AU)

Global Compliance & Certifications

• CE Marking with Declaration of Performance (DoP)

• ISO 9001:2015 (Quality Management System)

• ICC-ES Evaluation Report (US & Canada)

• Third-Party Tested: Salt spray resistance (ASTM B117), load capacity (ASTM E72)

Typical Applications

• Industrial Facilities: Manufacturing plants, logistics warehouses, automotive workshops

• Commercial Spaces: Retail mezzanines, office expansions, data centers

• Infrastructure: Airport terminals, transportation hubs, sports arenas

• Harsh Environments: Coastal structures, chemical processing plants, cold storage

Why Choose This System?

1. Time-Saving Installation: Pre-assembled kits with QR-coded components for error-free assembly.

2. Zero Maintenance: Eliminates repainting costs with permanent galvanized protection.

3. Sustainable Design: 92% recycled steel content with EPD (Environmental Product Declaration).

Customization Options

• Fireproofing: UL-certified spray coatings or gypsum board cladding

• Special Coatings: Zinc-aluminum alloy (ZM310) for extreme environments

• Accessories: Vibration dampers, acoustic insulation pads, seismic bracing

Packaging & Logistics

• Weatherproof Packaging: Corrugated steel edge guards + waterproof wrapping

• Export Compliance: ISPM 15-certified timber crating (optional)

• Documentation: Mill certificates (EN 10204 3.1), RoHS/REACH compliance statements