How Metal Decking Transforms Steel structure Building Design

In recent years, the use of steel structures in Türkiye has grown rapidly thanks to their speed of construction, structural efficiency, and design flexibility. Among the key components that make multi-storey steel buildings both practical and economical is metal decking—a simple yet highly engineered element that significantly enhances the performance of composite floors.
At Hasanoglu, metal decking is an essential part of our approach to safe, fast, and cost-efficient building systems.
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What Is Metal Decking?

Metal decking consists of corrugated steel sheets placed directly over beams and girders. Although it may appear like a straightforward steel plate, its structural role is far more important. Once installed, it serves as a permanent formwork for concrete slabs, eliminating the need for temporary timber formwork and reducing construction time dramatically.

  1. Faster Construction and Reduced Labor

One of the most significant advantages of metal decking is the speed it brings to multi-storey construction.
Because the decking itself supports the wet concrete during casting, workers can move quickly from one floor to the next without spending time installing and dismantling traditional formwork.

This efficiency:

  • Shortens the overall project duration
  • Reduces labor costs
  • Minimizes delays caused by formwork logistics

This makes the system ideal for industrial, commercial, and residential buildings requiring tight scheduling.

  1. Structural Benefits: Composite Action

When combined with concrete, metal decking forms a composite slab. The concrete provides compressive strength, while the steel deck offers tensile capacity and support during construction.
To enhance this composite behavior, shear studs are welded onto the steel beams. These studs ensure that the concrete slab and steel beam act together as a single structural element.

The result:

  • Higher load-carrying capacity
  • Reduced beam deflection
  • Ability to use smaller or lighter beams
  • Overall reduction in steel weight and cost

Composite floors are one of the most efficient systems used worldwide, and decking plays a central role in their performance.

  1. Improved Safety and Fire Resistance

Metal decking contributes to fire protection by acting as a barrier between the concrete slab and the structural steel. This increases the fire resistance rating of the floor system and helps delay heat transfer to the beams.
For multi-storey buildings, this added safety margin is essential for meeting modern building codes and protecting occupants.

  1. Better Integration With Building Services

The corrugated profile of the decking makes it easy to route mechanical and electrical installations between floors. Conduits, wiring, piping, and HVAC elements can be installed without cutting or weakening the structure.

This simplifies coordination between different trades and makes the building more adaptable for future modifications.

  1. Cost Efficiency Across the Entire Project

Because metal decking accelerates construction, enhances structural strength, reduces steel consumption, and minimizes the need for formwork, it contributes to significant savings in overall project costs.

For builders and investors, this means:

  • Lower material expenditure
  • Faster return on investment
  • Reduced long-term maintenance