Profile: Northland Steel Corp. is a supplier of steel joist and metal deck framing system, which is used in the construction of both roof & floor assemblies. Our steel roof and floor deck is roll formed from sheet steel in varying configurations and designed to any combination of span & loading. Our low-profile corrugated metal roofing is an alternative for shed-type roofs. Our services include design/build, in-house shop drawing and metal siding & roofing.