Model # 72S w/opt.
The multiple level staircase is 72" in diameter and is
located in an industry plant. The handrail is # 200 (1 1/2"
round) steel tubing with balusters, two per tread, made of #
302 (1"square tubing).
The treads are a # 100 (12 gauge) 30 degree checker plate surface
with optional closed risers between each tread. The center column is a
6" ID schedule 40 pipe. This stair has a circular opening that requires
a circular landing at each level and it also has a well rail around one
quarter of the opening. The finish has a hot dipped galvanize coating.
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