ZSJH
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With advanced steel fabrication equipment, professional welding technology, and strict quality inspection processes, we manufacture various types of steel stairs including industrial stairs, emergency escape stairs, external steel stairs, platform stairs, warehouse access stairs, and customized architectural stair systems.
Our steel stair structures can be fully customized according to project requirements, including dimensions, loading capacity, stair angles, handrails, surface treatment, and installation methods.

Manufactured using premium structural steel such as Q235, Q355, ASTM A36, and other grades, providing excellent load-bearing capacity and structural stability.
Every steel staircase can be customized according to:
Building structure
Floor height
Installation environment
Load requirements
Safety standards
Customer drawings
Multiple anti-corrosion options are available:
Hot-dip galvanizing
Powder coating
Painting system
Epoxy coating
Suitable for both indoor and outdoor applications.
Prefabricated components are manufactured in our factory and delivered ready for installation, reducing construction time and labor costs.
Properly designed and treated steel stair systems can provide more than 20 years of reliable service.

Steel structure workshops
Manufacturing plants
Factories
Production facilities
Office buildings
Shopping centers
Parking buildings
Public facilities
Warehouse platforms
Storage buildings
Distribution centers
Loading areas
Power plants
Petrochemical facilities
Mining projects
Equipment platforms
Apartment buildings
Schools
Hospitals
Emergency access systems
Used for accessing:
Equipment platforms
Production lines
Maintenance areas
Mezzanine floors
Designed for:
Fire escape routes
Building emergency exits
Multi-story structures
Provides safe access to:
Storage platforms
Office mezzanines
Rack systems
Integrated with:
Steel workshops
Prefabricated buildings
PEB structures
ZSJH Steel Group supplies:
Simple structure with high strength and easy installation.
Space-saving design for special architectural applications.
Heavy-duty stairs designed for factories and plants.
Emergency access solution with safety handrails.
Used with steel platforms and maintenance structures.
Weather-resistant stairs with corrosion protection.

| Advantage | Description |
|---|---|
| High Load Capacity | Designed for industrial and commercial requirements |
| Strong Durability | High-quality structural steel ensures long service life |
| Corrosion Resistance | Galvanized and coated surface protection |
| Custom Fabrication | Designed according to drawings and project requirements |
| Fast Installation | Factory prefabrication reduces onsite work |
| Low Maintenance | Durable steel structure requires minimal maintenance |
| Safety Compliance | Designed according to international standards |
| Cost Effective | Long lifespan with excellent performance |
| Item | Specification |
|---|---|
| Product Name | Steel Stair Structure |
| Material | Q235 / Q355 / ASTM A36 Steel |
| Stair Type | Straight Stair / Spiral Stair / Platform Stair |
| Stair Width | 600mm - 2000mm (Customizable) |
| Step Material | Steel Grating / Checkered Plate / Steel Plate |
| Handrail Height | 900mm - 1200mm |
| Load Capacity | 2.5kN/m² - 5.0kN/m² |
| Surface Treatment | Painting / Powder Coating / Hot Dip Galvanizing |
| Connection Method | Welding / Bolted Connection |
| Design Standard | AISC / EN / GB Standards |
| Service Life | 20-50 Years |
| Installation | On-site Assembly |
Customer drawings review
Structural calculation
3D modeling
Production drawings preparation
Using CNC cutting machines for accurate steel component processing.
Professional welding technicians ensure strong and precise connections.
Process includes:
Shot blasting
Rust removal
Painting
Galvanizing
Inspection includes:
Dimension inspection
Welding quality inspection
Surface inspection
Load testing
ZSJH Steel Group applies strict quality control throughout production:
✔ Raw material inspection
✔ Welding inspection
✔ Dimensional checking
✔ Surface coating inspection
✔ Final assembly inspection
Yes. We provide customized steel stair solutions according to your drawings, dimensions, load requirements, and installation conditions.
Common materials include Q235, Q355, ASTM A36 structural steel, depending on project requirements.
Yes. Outdoor steel stairs can be treated with hot-dip galvanizing or protective coatings for excellent corrosion resistance.
Yes. We provide detailed fabrication drawings and installation guidance.
Normally 20-45 days depending on project complexity and order quantity.
Yes. We support OEM and customized fabrication services.