Stairways must have at least two courses of rails. The top course must serve as a handrail and be at least 34 inches above the tread.
33 C.F.R. §149.695
Stairways must have at least two courses of rails. The top course must serve as a handrail and be at least 34 inches above the tread.
33 C.F.R. §149.695