What is Steel Deck?

Steel deck is also known as metal or corrugated floor deck. It comes in a variety of profiles, material gauges and load-bearing capabilities.

It is highly durable and resistant to external factors, which means that it will last a long time. It also has a high strength-to-weight ratio which helps to reduce delivery and erection costs.

Versatility

Steel framing systems offer flexibility in design that is not possible with traditional wood-framed construction. For example, cable trays and pipes can be hung from the underside of the slab using special ‘dovetail’ recesses fixed into the decking profile – this means that the amount of concrete required can be reduced for any slab depth without affecting the strength of the structure or fire performance.

In addition, compared to other flooring systems, steel deck is lighter and easier to transport, resulting in faster construction times and reduced site waste. Additionally, steel deck sheets can be delivered in kits that include all the bearers and joists cut to length.

A popular type of metal decking is Kingspan Multideck MD80 which can span up to 5.4 metres unpropped and provides 4 hours fire performance. It has a smooth linear plank look and is available in a range of finish paint colours. Unlike timber, steel deck does not twist or warp over time and will keep its quality for decades to come.

Durability

Despite being a structural component, steel deck framing can also be visually appealing with the use of proper factory and field coatings. This can enhance the aesthetic of your project and make it look better than other concrete construction options.

Unlike poured concrete, steel deck can be used to support loads between joists and beams, allowing the rest of the structure to be built on top. This allows architects and engineers to create more flexible floor plans, as well as maximize space utilization.

Additionally, steel deck can be prefabricated, which cuts down on labor and construction time. This can speed up the overall project schedule and allow for quicker occupancy. The durability of steel deck means that it can stand up to heavy, long-term usage. This can help you avoid costly repairs down the line and ensure that your building is safe for family, friends and coworkers to use. It can also reduce the need for concrete, which saves on materials costs and speeds up construction.

Cost-Effectiveness

Steel decking provides significant cost-savings over traditional concrete slabs. It requires less concrete, reduces reinforcing costs and allows other construction processes to be carried out unhindered by the casting of the slab. This can lead to faster construction and shortened project timelines.

The cost of steel framing varies according to the gauge of metal used. Thicker types of metal are more expensive, while thinner varieties cost less. The choice of gauge also affects the load-bearing capacity of a structure.

Steel form deck can be utilised as permanent floor shuttering in place of wooden forms. It also eliminates the need for shoring and helps to reduce overall building costs. It is also more durable and does not rot. In addition, it is easier to hang services like cable trays and pipes from the underside of the deck. This can further reduce construction and installation costs. The ribbed design of metal deck also transfers horizontal force through the purlins and beams with better strength than major reinforcement steel alone, so it can reduce the amount of reinforcing required for a structure.

Time-Saving

The laying out of metal decking does not obstruct other construction tasks such as masonry work which can be done simultaneously. This can speed up the overall construction process and help to meet project deadlines.

The shape and gauge of the steel deck profile influences its specific load capacity and fire performance. Leading multideck manufacturer Kingspan offers profiles with Engineered Ends which allow a greater volume of concrete to be poured over the shear studs and steel beams. This further improves the composite action between the steel and concrete helping to fulfil the requirement for full depth concrete.

When it comes to building car parks, metal deck enables structures to be designed with a large number of unpropped spans which can increase the amount of spaces that can be created compared to concrete. This flexibility equates to a lower capital cost and reduced operating costs for the facility. The high strength-to-weight ratio of steel roof decks also translates to quicker installation times.



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