Once the load-bearing metal stud wall panels, Epicore MSR deck, shoring and structural steel beams and columns are installed, the concrete is poured on the Epicore MSR Composite Floor System. The concrete slab thickness is a function of span and/or fire rating requirements, but is usually between 4.5” and 6” thick (total slab thickness from bottom of deck to top of slab). A majority of the Epicore MSR slabs use 4,000 psi normal weight concrete, although 3,000 psi or lightweight concrete may be used if desired (consult Infinity).