About This Stair
This 9 ft Spiral Staircase Kit is designed for standard residential ceiling heights, making it a versatile and widely used option for interior stair applications. It offers a balanced combination of space efficiency and everyday functionality, commonly available in models like the Ethan.
The configuration shown reflects a typical setup of this stair type. Customization options allow you to adjust diameter, finishes, and tread details to suit your space and design preferences.
Best For: Standard residential ceiling heights and primary interior use.
Indoor or Outdoor Use: Indoor use.
Code Compliance: Suitable for standard residential applications; confirm local code requirements as needed.
Available Height Range: Designed for floor-to-floor heights around 9 feet.
Diameter / Tread Options: Multiple diameter and tread options available for flexible layout and design.
Installation Difficulty: Moderate; suitable for most DIY installations.
What’s Included: Complete stair kit with all major structural components and hardware.
Product Specs
Width
3ft 6in Diameter
Height
8’5″-9’6″ Adjustable Height
Treads
Smooth Steel Treads
Handrail
Vinyl Handrail
Railings
1 Platform Rail
Customer Submitted Videos
Customer Q&A
Do you offer stairs that meet building code?
Sara C.
Yes, we do! Our SMA Certified Stair Designers are experts in your local building codes. We build thousands of stairs to code every year and we can do that for your project if you desire. The need to meet building code is required in some situations and in other situations code compliance may not be necessary. Please reach out to us to discuss further.
Do you have stairs for outdoor use?
Courtney B.
We have exterior spiral stair options that will last a lifetime outdoors. We have galvanized steel, raw aluminum, and powder coated aluminum stair material options! All of our outdoor spiral stairs are backed by a lifetime warranty.
Where do you ship your stairs?
Chris M.
We ship our stairs directly to consumers all across North America from our facility in Collegeville, Pennsylvania. All of our stairs are custom built to your specs and then shipped directly to you broken down in kit form for easy step-by-step DIY installation.
How much floor space do your stairs take up?
Ethan G.
The floor space a stair takes up is determined by the stair’s diameter. The smallest size diameter we offer is 3 feet 6 inches (42″ X 42″ floor footprint). Our standard diameters increase in six inch increments, 42″ x 42″ to 48″ x 48″ to 54″ x 54″ and so forth. We recommend that you place painters tape on the ground in the above dimensions to determine how the stair will look in your space.
Read Reviews From Our Customers
24 Reviews
Anitra R.
Feb 22, 2026
The process with Paragon was so easy and straight forward. It fit perfectly into our Airbnb and opened up the loft bedroom. We feel great knowing our guests have a safe way to make it to the loft and they love the look! Installation was easy and took about 2 hours. This was the perfect affordable staircase that didn’t sacrifice design or sturdiness.
Alex V.
Feb 25, 2026
I was looking to save space and went with spiral stairs. I went on the website with different companies that they do this type of stairs and none of this companies they could do this on a reasonable time, except Paragon Stairs. I talked to my designer and went through my drawings and photos. He is very professional and knowledgeable and came into to an agreement on the size and type of stair for my project. I got the stairs very quickly even though I live in Canada and the instruction were very easy to understand for a DIY. I would recommend this company. Paragon Stairs Rock!
Brad E.
Mar 4, 2026
Excellent Quality and a great price for a very well built circular stair. Installation was relatively easy for a novice but you definitely need 2 people. The delivery dates were met and the design process very easy!
Discover the Perfect Custom Staircase with Our Complimentary Consultation
At Paragon, our free consultation for custom staircase design offers personalized insights, expert guidance, and a collaborative approach to ensure your vision transforms into a stunning, tailor-made staircase that perfectly complements your space and style.
- Design and sizing advice
- 3D model of your staircase in your space
- Design options that perfectly fit your budget
- Estimated product lead times
Why Paragon
See How Paragon Delivers a Best in Class Experience
Customized to Your Budget
Our friendly stair designers can work with you to customize your stair solution to fit your budget.
Complimentary Consultation
Our friendly designers can meet with you virtually to get you a FREE 3D model and accurate pricing.
Limited Lifetime Guarantee
We back our stairs with the only lifetime warranty on metal fabrication in the stair industry.
50,000 Satisfied Customers
See how we have improved the homes and lives of our clients.