Industrial Models
OSHA Approved spiral stair:
OSHA requirements on spiral stairs are less stringent than residential codes.
The spiral stair shown here is a good example of OSHA requirements.
This application is at a waste water treatment plant.
The stair is for maintenance access; therefore, no children will be using the spiral stair.
An adult using this spiral stair will be taller than the handrail height so
there is no need for tight baluster spacing. At a point less than 12’ in elevation,
this spiral stair has a rest landing which is also an OSHA requirement.
The handrail height, headroom, riser height and distance between the center column and handrail will pass OSHA standards.
A spiral stair with these requirements that is shipped in one section will be
an inexpensive, easy-to-ship, install.