What Is Steel Decking and What Is It Used For?

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What is steel decking?

Steel decking, also known as metal decking, is a sheet of high-performance galvanized steel used in the construction of composite concrete floor slabs. It can also be used as a structural feature in roof construction. When specified as metal roof decking it is used to support insulating membranes.

Composite metal decking is perfect for use in both floor and roof construction because it has a high strength-to-weight ratio. Other advantages of metal deck include uniform quality, proven durability including excellent fire performance and cost efficiency.

Steel is also sustainable; it is one of the world’s most recyclable materials with over 40% of ‘new’ steel manufactured from recycled steel.

Uses of steel Decking

Steel decking has two primary uses: structural metal roof deck and composite floor deck. It’s perfect for both applications because it has a high strength-to-weight ratio that’s both inexpensive and easy to install.

Metal roof decking

Metal roof decking is a corrugated metal panel that’s used for a roofing application. It’s installed over steel joists or steel beams and provides a durable platform for the Installation of roofing materials, insulation, the waterproof membrane of a roof, and lightweight concrete. Metal deck is attached by welding, mechanically fastening, or screwing the metal sheets to the steel.

Roof decking has a smooth surface without embossments and isn't designed to have structural concrete poured on top of it. If you require structural concrete and a composite floor deck system then you will need a metal floor deck.

Metal floor decking

Metal floor decking is a corrugated metal panel that’s used in a floor application. It’s installed over steel joists or steel beams and supports the wet concrete. There are embossments in the vertical ribs of the decking that bond with the concrete slab. When the concrete cures it becomes a composite floor deck, which will increase the strength of the floor without adding any additional weight.

Learn more about steel decking

Steel decking is an excellent choice as a roof or floor decking because it’s inexpensive, lightweight, installs quickly, and it’s easy to install.

We UnionSSM have the top specialized qualifications both in steel structure fabrication and metal building construction as a private enterprise in the steel structures industry of China, and our technology and quality are recognized by relevant authorities. We have joined the important associations of the Chinese steel structure industry and influenced them. In addition, we strictly adhere to international standards in our fabrication and construction, including quality control, environmental management, occupational health and safety, etc.

For more information about steel decking, please do not hesitate to contact us.


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