Our Build Your Stair tool puts the design in your hands by taking you through each decision.

Build Your Stair

Our Build Your Stair tool puts the design in your hands by taking you through each decision.

Build Your Stair

The Allenby (Dual Handrail Spiral Stairs)

The Allenby’s classic combination of black steel and wood accents fits any professional setting.


Charming, Contemporary, Traditional & More


Interior, Office, Commercial & More

Pricing Starts At


Allenby spiral stair
double stack indoor spiral staircase
double handrail steel spiral stair with wood
accurate spiral stair pricing

Get Accurate Pricing

Our expert designers can design the perfect stair solution based on your requirements and budget. You’ll get quick and accurate pricing from SMA certified designers! Learn more about how it works.

The Balance of Safety and Design

Every Paragon staircase meets our safety standards to make certain you and your guests are comfortable. Our Traditional Office Steel Spiral Stair has several additional safety features built into the design.

Some of the additional safety options available for this stair design include:

  • Textured nonslip steps
  • Code compliant rest platforms
  • Additional spindles

Code Compliance in Every Design

Our code certified designers can help you create the right staircase for your space and local code requirements.

  • SMA members
  • Local code experts
  • Engineer approved designs
  • Configurable options to meet code

In-House Engineering

Paragon’s in-house engineering team reviews every staircase design in both the design and manufacturing stages to make certain that your staircase is ready for use upon installation. Our exclusive engineering features, including enclosed tread ends and our spindle to handrail connection, add stability and style to your staircase.

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The Curator


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This design features the details needed to match your vision and complete your home design

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The Vacationer


This spiral stair fits a wide range of spaces and styles with the open frame and wood accents

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how to buy spiral stairs

How to Buy

This step by step guide takes you through each part of Paragon’s process for designing and purchasing unique spiral staircases.

Shopping Made Simple

  • Browse or Build

    Browse our stair products for inspiration, or just create your own with our online builder tool.

  • Get Price and 3D Model

    When you’re ready get pricing and a 3D model of your stair during your FREE consultation.

  • Receive and Install

    Get your custom-crafted stair shipped locally in a boxed kit, ready for easy installation.

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.

Customer and Salesperson

Complimentary Consultation

Our friendly designers can meet with you virtually to get you a FREE 3D model and accurate pricing.

Limited Lifetime Guarantee

Limited Lifetime Guarantee

We back our stairs with the only lifetime warranty on metal fabrication in the stair industry.

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50,000 Satisfied Customers

See how we have improved the homes and lives of our clients.

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In Four Easy Steps

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Where should we send your pricing?

Your Quote Will Include:

  • 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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