Ordered
May 15
Shipping dates estimated
Delivered
May 25 - 29
Made in
Pennsylvania
Industry’s Only
Lifetime Warranty
Best Price
Guarantee Direct
from Manufacturer
DIY Prefabrication
Stair Kit Installation
About This Stair
The Prefab Metal Spiral Staircase Kit is designed for simplified assembly and faster installation. It provides a streamlined solution for homeowners who want an efficient indoor stair without a complex build process.
The configuration shown reflects a standardized setup that supports quick installation. Customization options are available but are designed to remain simple and easy to implement.
Best For: Quick installations, DIY projects, and simplified setups.
Indoor or Outdoor Use: Indoor use.
Code Compliance: Suitable for standard residential use; verify local requirements if needed.
Available Height Range: Adjustable to fit common residential floor heights.
Diameter / Tread Options: Available in multiple diameters with simplified configuration options for faster setup.
Installation Difficulty: Easier than most spiral stair kits; designed for efficient assembly.
What’s Included: Complete prefab kit with all major components and installation hardware.
Product Specs
Width
3ft 6in Diameter
Height
7’1″-7’11” Adjustable Height
Treads
Smooth Steel Treads
Handrail
Vinyl Handrail
Railing
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
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.
Trevor L.
Feb 24, 2026
Easy to configure your order, stairs are well made and packed for shipping. Easy to install and they look great with out breaking the bank!
Addy B.
Feb 19, 2026
We wanted a way to reach the loft of our cabin rental without taking up too much space. The cabin is already on the smaller side and a traditional staircase would’ve been way too big. Paragon’s price point and aesthetic were exactly what we were looking for.
Lauri S.
Feb 8, 2026
I was looking for an upgrade to my home that would be nicer than just going to Home Depot. Paragon offered a quick ship spiral staircase that was high quality and easily shipped to my home!
Craig G.
Feb 25, 2026
Paragon was easy to work with, they provided up from information, clarification and great follow up on my questions. It turned out as Paragon described. I had my 2 sons help load the treads on the pole then I assembled it by myself. I am over 60 years old, so If I can do it you can do it.
We’re proud to have been entrusted by some of the nation’s most reputable brands and have been featured in top publications and productions. Here are some of the places our quality stairs can be found:
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
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We back our stairs with the only lifetime warranty on metal fabrication in the stair industry.
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