ALUMINUM alternating tread stair
Utilizes a central stringer with curved treads that weld directly to the handrail.
Is ideal for outdoor areas where corrosion and rust are a concern, as well as rooftop applications where weight is a major consideration.
Is shipped as one complete welded unit, ready to bolt into place.
Extends 42" above the top landing of the stair.
Designed for roof hatch applications, this rail extends 3-3/4" above the top landing.
All rails are close fitting with a 20” inside width and 23” outside width.