60” Diameter Spiral Staircase Kit


Code Compliant Steel Stair with Finish Options


This Duvinage Chicago KS60 staircase kit includes:


  • •   Steel smooth plate 30° treads
  • •   Steel balusters with 4" code spacing
  • •   Aluminum handrail 1 1/4" O.D.
  • •   Steel smooth plate platform 31" x 31"
  • •   Steel platform rail 33" x 36"
  • •   Steel center pole with attached baseplate
  • •   Finished in green primer
  • •   Zinc plated steel hardware; assembly instructions
  • •   Free shipping in the contiguous United States
  • •   Designed and fabricated by Duvinage in the U.S.A.

Configuration specs:


  • •   80" - 152" floor-to-floor height (9 - 16 risers)
  • •   Install with right- or left-hand rotation
  • •   Adjustable riser spacing
  • •   Scroll down for available customizations

Choose Your Height Range

You can add solid wood tread and platform covers:

Manufacturing Walkthrough
Wood Tread and Wood Platform Covers for Spiral Stair Kit Wood Tread and Wood Platform Covers for Spiral Stair Kit - Down View Red oak wood tread and platform covers shown above with finish.
Wood treads and platform are unfinished, sanded smooth for finish prior to installation. The wood covers span the entire top surface of the treads and platform for warmth and elegance.
Add Upgrade to 3/4'' Red Oak Covers

You can upgrade to diamond plate steel:

Manufacturing Walkthrough
Diamond Plate Tread and Platform for Spiral Stair Kit Diamond plate tread and platform covers shown above.
Also known as checker plate, the raised pattern on the diamond plate treads and platform provides more traction.
Add Upgrade to Diamond Plate

You can add an additional side of platform rail:

Manufacturing Walkthrough
Additional Platform Rail for Spiral Stair Kit - Parallel Configuration Additional Platform Rail for Spiral Stair Kit - Close Up Additional platform rail shown above in parallel configuration.
Also used for L-configuration. Hardware for both configurations (parallel and L) is included. 4" code spacing. For loft and deck attachments.
Add Additional Platform Rail

You can add riser plates for 4" riser spacing:

Manufacturing Walkthrough
Riser Plates for Spiral Stair Kit Riser Plates for Spiral Stair Kit - Close Up Riser plates for 4" riser spacing.
Not required for 2018 International Residential Code (IRC) compliance. 4” riser spacing is a requirement in some locations - check your local code requirements.
Add Riser Plates

You can have your stair finished in a color:

Manufacturing Walkthrough
Black Painted Spiral Stair Kit Finished in black paint above.
Add finish upgrade to black, white, or custom-selected paint. For custom colors, specify your color of Benjamin Moore paint below. Direct-to-metal paint will be applied to primered steel.
Choose Your Paint Color
If Custom, Specify Color

You can upgrade to stainless steel hardware:

Manufacturing Walkthrough
Zinc Plated Steel vs Stainless Steel Hardware Sample for Spiral Stair Kit Standard zinc plated hardware can be upgraded to stainless steel.
Zinc plated steel hardware (example on left) is standard. Stainless steel hardware (example on right) is better suited for exterior applications.
Add Upgrade to Stainless Steel Hardware

Ready to Buy? Easily add/remove items, adjust quantities, and pay securely once you're ready:

Free shipping in the contiguous U.S. on
stair kit orders over $999


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Measurements to Know

Verify measurements before you order. Learn about spiral stair kit dimensions.

In a Hurry?

We ship staircase kits within 5 business days. Need it faster? Contact us.

Need Galvanized?

Check out the best-in-class Chicago Galvanized Code Compliant spiral stair kit.

Need a Smaller Diameter?

Contact us about 42”, 48” and 54” diameter stair kits for compact spaces and budgets.

Need a Custom Spiral Stair?

Looking for a custom designed stair instead? See our custom spiral stairs.