China Heavy Duty Steel Structure Stairs Manufacturer, Supplier, Factory

For the most demanding industrial and commercial environments, nothing matches the rugged reliability of Heavy Duty Steel Structure Stairs. Engineered for superior load-bearing capacity and long-term performance, these stair systems are the go-to solution for facilities requiring maximum safety and durability. Whether you are upgrading an existing facility or constructing a new one, our Metal Structure Stairs provide unparalleled structural integrity. The core of our system is the robust Steel Frame Stairs, designed to withstand constant heavy traffic and extreme conditions. Ideal for factories, warehouses, and plants, our Steel Industrial Stairs are built to meet rigorous safety standards. For outdoor applications exposed to the elements, our corrosion-resistant Steel Exterior Stairs offer the same exceptional strength and weatherproof performance, ensuring safe access year-round.


The Heavy Duty Steel Structure Stairs are meticulously fabricated from high-grade materials to exacting specifications. Every component is designed for optimal performance and ease of installation. The standard tread is constructed from a durable, slip-resistant grating material, securely welded to the main stringers for a solid, vibration-free feel underfoot. The entire assembly is typically finished with a industrial-grade primer and paint system, or can be specified with hot-dip galvanization for ultimate corrosion protection in harsh environments. Customization options are extensive, allowing for variations in width, rise, run, and handrail configurations to meet specific project requirements and local building codes.

Core Product Specifications

  • Material: High-Strength Carbon Steel (A36 Standard)
  • Load Capacity: Exceeds 1000 lbs concentrated load per tread
  • Standard Tread: Steel Grating or Checker Plate
  • Finishes: Industrial Enamel Paint, Hot-Dip Galvanized
  • Compliance: Meets OSHA and IBC Standards
Feature Description Benefit
Stringer Type Fabricated from structural channel or plate Provides maximum rigidity and long-term stability
Connection System Bolted or welded connections available Allows for flexible installation and future modifications
Riser Options Open riser (standard) or closed riser Meets various design and safety requirements
Handrail & Guardrail 1-1/2" Schedule 40 pipe, standard 42" height Ensures user safety and full code compliance
Custom Fabrication Available in any width, height, and configuration Perfect fit for any unique architectural layout

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