210mm Deep Rib Composite Floor Deck 1.25mm Galvanized Steel 6m Unpropped Span

This 210mm deep trapezoidal composite floor deck is a high-performance galvanized steel decking solution engineered for long-span composite slab construction. Cold-formed from 1.25mm S350GD+Z275 high-tensile steel (BS EN 10346), it delivers a minimum yield strength of 350 N/mm² and robust corrosion resistance.

The deep rib geometry features both cross and longitudinal stiffeners, maximizing structural efficiency. This design enables a 6.0m unpropped span and up to a 9.0m propped span, significantly reducing temporary supports, accelerating deck laying, and lowering overall labor and material costs. Its reduced rib volume also minimizes concrete consumption compared to conventional profiles.

Key Engineering Advantages

• Fewer Temporary Props: Extended spans reduce propping material, crane time, and site labor.

• Material Cost Reduction: Lower concrete volume and lighter main steel weight reduce foundation loads and overall frame costs.

• Faster Construction Cycle: Rapid deck laying, mesh fixing, and pouring without waiting for prop removal.

• Versatile Slab Depth: Adjustable from 260mm to 400mm, accommodating both light office loads and heavy industrial loads.

• Slim Floor System Compatible: Can be installed on the bottom flange of asymmetric beams to reduce total building height, add extra floors, and conceal MEP services within the slab ribs.

Technical Specifications

Sustainability & Green Building Credentials

• BES 6001: Rated "Very Good" for responsible sourcing. Valid for BREEAM and LEED green building credits.

• EPD (Environmental Product Declaration): Third-party verified under ISO 14025 and EN 15804. Records embodied carbon and environmental impact, meeting the strict requirements of international green tenders.

Application Scope

• Multi-storey commercial and office buildings

• Industrial floors and warehouses with heavy imposed loads

• Bridge construction and bridge deck formwork

• Educational, medical, and institutional buildings (requiring 2-hour fire rating)

• Slim floor and shallow floor construction

• Green building projects pursuing BREEAM or LEED credits

Export Logistics & Site Productivity

The nestable trapezoidal shape maximizes loading quantity per bundle and container, drastically lowering sea freight costs. On-site, two workers can lay over 400 m² of decking per day, ensuring rapid hoisting and concrete pouring cycles.

Contact Us

Hangzhou FAMOUS Steel Engineering Co., Ltd. (FASECbuildings) supplies high-performance composite floor deck and long-span deck systems for global projects. We provide professional parameter verification, span calculation, and full technical support.

📩 Contact our engineering team today for a competitive quotation and customized solution.

(Note: Span, slab depth, and fire resistance values refer to verified project conditions. Final composite slab design should be confirmed against project loads, beam spacing, and local codes.)