RESIDENTIAL SPIRAL STAIR: WELDED
Spiral stairs built to last.
Model 48 SKD
This stairway is our Standard Spiral Kit. It is 48" diameter
with 30 degree treads. The handrail is a 1 1/4" round vinyl with
balusters made of 3/4" square steel tubing, one per tread.
The treads are made of 12 gauge smooth plate steel and are
welded to a 4" OD round schedule 40 sleeve. The center column is
3 1/2" OD 16 gauge steel and the landing is a 90 degree square
smooth plate steel with 36" guard rails on two sides. The stair
is factory painted with red oxide primer with final paint
applied by others after installation. The spiral is shipped in
boxes with all the hardware and instructions for easy
installation by customer.