Spiral stairs are valued for their heightened flexibility, small footprint, and custom design.

Casco & Sons builds spiral stairs that are solidly welded together into one piece with riser bars to give you peace of mind as you step up. The handrail smoothly follows the rise of the stairs giving a clean look with added security.


  • Solid, welded design
  • Standard diameters of 60″, 66″, 72″
  • Custom size treads and diameters 84″ or greater
  • All weather construction
  • Galvanized steel
  • Aluminum
  • Durable powder coating
  • Anti-slip materials
  • Tread matching with Trex, concrete, and hardwood
  • Railing options to match existing
  • Cable rail spiral stair
  • Glass rail spiral platform
  • Custom platform size and shape
  • Delivery
  • Installation

Customization continues beyond your space requirements. For residential homeowners, a number of spindle and tread options allow you to choose the best look for your home. Powder coat finishes come in classic black, oil rubbed bronze, and white. Or you can choose from a custom color chart to have a one-of-a-kind spiral stair for the home.

Industrial and commercial spiral stairs use heavier gauge, galvanized or primed steel for added durability with a variety of restraints available. Choose a security cage style using expanded metal with a graspable handrail. Or select double pipe handrail for a functional spiral stair that allows you to reach every height with ease and safety.

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Request a Quote

The process is simple. Submit your request for a free quote, along with your approximate floor-to-floor dimension and diameter. Include any other options you choose like specific material, finish, and delivery or install locations. Place your order, and find out why we are the regions foremost iron spiral staircase manufacturer.