This topic includes information related to metal joists installed during construction. Metal joists are horizontal supporting members which carry the structural loads of floor, ceiling and roof assemblies. Metal joist assemblies are constructed of steel or aluminum joists, bridging, anchors and accessories.

Steel joist framing provides an efficient framing system for supporting floors and ceilings in a wide variety of building types. Steel joists are economical and lightweight with an exceptionally high strength-to-weight ratio. Since steel joists are lighter than wooden trusses, the size of the supporting structural elements as well as the size of the building's foundation can be reduced for cost efficiency.

This topic includes information related to aluminum joist framing installed during construction. Aluminum joists are horizontal supporting members which carry structural loads above. Aluminum joists are fabricated framing members that are durable, non-corrosive and light weight.