Which of the following is NOT a type of Steel Decking?

Steel decking is a crucial component in construction, particularly for floors and roofs, providing structural support and serving as a base for concrete and other finishes. The types of steel decking primarily include cellular, composite, and roof decking, each designed for specific applications.

Cellular decking features built-in voids for electrical and mechanical services, making it suitable for applications where services need to be concealed. Composite decking incorporates concrete on top of the steel deck, which works together to form a strong and efficient system for floors. Roof decking is specifically designed to support roofing materials and withstand environmental loads.

On the other hand, aluminum is not classified as a type of steel decking; it is made from a different material entirely, which possesses distinct properties and applications. While aluminum decking may be used in construction, it does not fall under the category of steel decking, which specifically pertains to products made from steel. This distinction makes aluminum the outlier among the choices listed.