The Expedition Spiral Stair

The Expedition Spiral Staircase is the perfect outdoor stair solution for your deck with a weatherproof finish that will last through all seasons.

  • Fastest Shipping Times in the Industry
  • Weatherproof Finish
  • Lifetime Warranty

Weatherproof Outdoor Stairs

The Expedition Spiral Stair goes through our hot dipped galvanized process. This finish coats every part of the staircase, including hardware, in a maintenance free finish that is paired with our non-slip steps to ensure maximum safety in your outdoor space.

  • Maintenance Free Finish
  • Non-Slip Steps
  • Lifetime Warranty

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Adjustable Height

The Expedition features our adjustable sleeves that fit a range of heights, giving you flexibility in your space. You just need the approximate height of your deck or balcony to start your spiral staircase project!

  • Flexibility in Your Space
  • No Exact Measurements Needed
  • Easy Installation

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Code Compliant Designs

The Expedition Spiral Stair offers a code compliant option package, making it the perfect solution for your backyard deck our outdoor living space. These International Building Code compliant staircases quickly ship to you so your timeline is met.

  • 5′ Wide Diameter
  • SMA Approved Designs
  • Additional Center Balusters

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“Every time we called with changes. The images they provided were phenomenal to help us make sure that it was really fitting with the deck we had designed.”


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Customized To Your Budget

Our friendly stair designers can work with you to customize your stair solution to fit your budget.

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Limited Lifetime Guarantee

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

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Complimentary Consultation

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

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Over 50,000 Satisfied Customers

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

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  • 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.