HomeGallerySCS-0001 SCS-0001 September 16, 2015 Steel central stringer staircase with 42mm treads with riser beads with raised bottom landing. Balustrade consists of stainless steel (brushed) 50mm round posts and handrail with stainless wire infill. The grey tape on the nosings was applied by the customer after installation to highlight the nosing edge.