Long Span Steel Truss Joist for Modern Commercial Floor Systems

The Steel Truss Joist—also referred to as an Open Web Steel Joist—is a versatile structural component widely used in floor and roof framing for large commercial and industrial buildings. Engineered to achieve long spans with reduced material weight, this system offers excellent structural performance and construction efficiency.

At Hangzhou FAMOUS Steel Engineering Co., Ltd., we manufacture high-quality truss joists tailored to each project’s design, span, and load requirements. With advanced production lines and strict quality control, FAMOUS ensures precise fabrication and reliable performance in every structure we deliver.

Key Characteristics

• High Strength-to-Weight Ratio:
  The triangulated web design distributes loads evenly, achieving remarkable strength while keeping the structure lightweight. This minimizes foundation costs and simplifies installation.

• Design Flexibility:
  Truss joists can be custom-engineered for various spans and configurations, suitable for both floor and roof systems in office buildings, warehouses, and industrial facilities.

• Improved Service Integration:
  The open web geometry provides clear passages for HVAC, plumbing, and electrical systems—reducing the need for secondary framing or floor penetrations.

• Durable Finishing Options:
  We provide multiple surface treatments, including hot-dip galvanizing and powder coating, to enhance corrosion resistance and extend the service life of each truss.

Applications

FAMOUS steel truss joists are ideal for:

• Long-span commercial floor systems

• Industrial platforms and mezzanines

• Warehouse and factory roof framing

• Multi-story steel building structures

Thanks to their modular and lightweight nature, they help reduce on-site labor, speed up installation, and maintain high structural precision.

Manufacturing Excellence

All fabrication is performed in-house at FAMOUS’s certified facility, equipped with CNC cutting, robotic welding, and advanced assembly systems. Each step—from raw material inspection to final painting—is carefully monitored under ISO 9001, EN1090, and AWS D1.1 standards.

Our experienced engineers provide complete technical support, including design optimization, 3D modeling, and on-site installation guidance for international projects.

Choose FAMOUS for Your Next Project

As a trusted steel structure manufacturer and exporter, FAMOUS is dedicated to delivering reliable, cost-effective, and customized structural solutions for global clients. Whether for commercial, industrial, or institutional applications, our steel truss joists guarantee strength, stability, and long service life.