Metal decking for concrete

Metal floor decks are widely used in multi-story steel structures as a replacement for traditional formwork. Once concrete is poured, the deck bonds with the reinforcement to form a single, integrated floor system. The result is a construction method that improves safety, delivers high strength, and helps cut labor costs while keeping the project on schedule.

Model Explanation (take YX75-230-690 as an example)

YX Roll formed steel sheet
75 Rib depth: 75mm
230 Rib spacing (pitch): 230mm (center to center)
690 Effective cover width: 690mm
    1. Steel Floor Decks (Trapezoidal Profile 75mm Depth×690mm Width)
    2. Steel Floor Decks (Trapezoidal Profile 75mm Depth×690mm Width) Metal floor decks are tipically used in multi-story steel buildings as a permanent replacement for traditional formwork. Once combined with reinforced concrete, the steel deck and the slab act together as one integrated structural system.
      Effective cover width: 690mm
      Overall width of sheet: 1085mm
      Length: Customizable
      Thickness: 0.75mm-1.2mm
      Details
    1. Steel Floor Decks (Trapezoidal Profile 38mm Depth×915mm Width)
    2. Steel Floor Decks (Trapezoidal Profile 38mm Depth×915mm Width) With an effective cover width of 915 mm and an overall sheet width of 1250 mm, this profile achieves a material utilization rate of 73%. Designed to serve as permanent formwork, it removes the need for traditional wooden molds and temporary supports.
      Effective cover width: 915mm
      Overall width of sheet: 1250mm
      Length: Customizable
      Thickness: 0.75mm-1.2mm
      Details
    1. Steel Floor Decks (Trapezoidal Profile 76mm Depth×915mm Width)
    2. Steel Floor Decks (Trapezoidal Profile 76mm Depth×915mm Width) These trapezoidal metal floor decks are designed for strength and efficiency. They combine reliable fire resistance with high structural performance, which ensures safety and stability when integrated with reinforced concrete.
      Effective cover width: 915mm
      Overall width of sheet: 1250mm
      Length: Customizable
      Thickness: 0.75mm-1.2mm
      Details
    1. Steel Floor Decks (Trapezoidal Profile 113mm Depth×768mm Width)
    2. Steel Floor Decks (Trapezoidal Profile 113mm Depth×768mm Width) These trapezoidal metal floor decks have a crest height of 113 mm, spacing of 256 mm, and an effective cover width of 768 mm.
      Effective cover width: 768mm
      Overall width of sheet: 1000mm
      Length: Customizable
      Thickness: 0.75mm-1.2mm
      Details
    1. Steel Floor Decks (Dovetail Profile 51mm Depth×600mm Width)
    2. Steel Floor Decks (Dovetail Profile 51mm Depth×600mm Width) Dovetail floor decks stand out for their unique re-entrant shape, which not only gives them a clean, modern look but also makes it easier to suspend ceilings, pipes, and other services.
      Effective cover width: 600mm/800mm
      Overall width of sheet: 1000mm/1250mm
      Length: Customizable
      Thickness: 0.75mm-1.2mm
      Details
    1. Steel Floor Decks (Profile 65mm Depth×555mm Width)
    2. Steel Floor Decks (Profile 65mm Depth×555mm Width) These closed profile metal floor decks are designed with a rib height of 65mm, rib spacing of 185mm, and an effective cover width of 555mm.
      Effective cover width: 555mm
      Overall width of sheet: 1000mm
      Length: Customizable
      Thickness: 0.75mm-1.2mm
      Details
    1. Steel Floor Decks (Profile 65mm Depth×760mm Width)
    2. Steel Floor Decks (Profile 65mm Depth×760mm Width) These closed profile decks are designed so that the ribs are completely wrapped in concrete, working almost like reinforcement bars inside a slab. This integration makes the floor system stronger, more stable, and safer under heavy loads.
      Effective cover width: 760mm
      Overall width of sheet: 1250mm
      Length: Customizable
      Thickness: 0.75mm-1.2mm
      Details
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Dovetail re-entrant metal floor decks are a good option. They are lightweight yet strong, with high load-bearing and seismic performance. The flat underside provides a smooth surface, making it easier to attach suspended ceilings, electrical conduits, and other systems during construction.

Closed profile metal floor decks are often used in these cases. Their fully enclosed profile design locks tightly with concrete, reducing the risk of steel and concrete separating under stress. This structure not only enhances overall strength but also offers improved fire resistance, making it a safer choice for large public buildings.

Since the steel deck acts as permanent formwork, there’s no need for additional support structures. This simplifies installation, speeds up the concrete pour, and reduces labor on site. As a result, projects can be completed faster and with lower overall costs compared to traditional flooring methods.