One-quarter-inch steel checkered plate treads span evenly spaced stringers in a steel stair assembly. One-and-one-quarter-inch nominal steel rails form the guard and handrail assembly, positioned at three feet and three feet six inches above the nosing and landing. The stair framing connects to structural steel supports and concrete floor slabs.
1 1/4" NOMINAL STEEL RAILS - TYP. 3'-0" 3'-6" 1/4" STEEL CHECKERED PLATE - TYP. EQ EQ EQ
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