Prefabricated Stair Systems | Prefab Stairs

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All Panel Built prefabricated stair systems, handrails and components are engineered, fabricated and powder coat painted at our plant for a lasting finish and fast delivery. Each prefab stair system is manufactured to your specification allowing for various sizes, heights and specialty metal handrail that meets OSHA and IBC codes.

Standard Prefab Stair Options

  • IBC Business, IBC Factory or OSHA
  • Powder Coated or Galvanized Steel Stairs
  • Steel Diamond Plate Treads
    (Grip-Strut, Bar Grate)
  • 1/2 Square Tube Handrail
  • Code Compliant for Self
    Supported Landing
  • Opened and Closed Risers
  • 48’ x 48’ and 56’ x 56’ landings
  • Interior and Exterior Prefabricated Stair Systems

Differences Between IBC and OSHA stair codes


IBC Stairs have a horizontal run that is approximately 1.5 times the deck height, not including landings or handrail extenders, so a 10’ high mezzanine deck would have an approximate 15’long stairwell.


With OSHA Stairs the horizontal run and the length of the stairwell, is approximately equal to the height of the deck. For instance if the mezzanine deck height is 10’, the stairwell is 10’ long.

Quality Service

Matchless strength and durability, is the “core” of our building quality. Our light-weight, highly portable structural panels meet all military specifications and exceed most national building codes and OSHA requirements.

Super Support

Our dedicated sales team provides confidential free quotes and CAD drawings to help get your project underway. Our team is available to answer any questions about a quotation, an order, freight options or project changes.


Panel Built modular offices and mezzanines are 100% relocatable and expandable. Because they are made onsite, our products are ready 40 percent faster than stick-built. Ask about our  2 Day Quick Ship option to have you up and running even faster.

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Call For Modular Building Solutions 800.636.3873