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Pre-Engineered Steel Roof Truss – Long Span, Heavy Load Capacity
| Place of Origin | China |
|---|---|
| Brand Name | FASEC |
| Certification | ISO 9001; AWS D1.1 Certified Welders; WPS/PQR; Third-Party Inspection (SGS/BV/TÜV) |
| Model Number | Steel Truss |
| Minimum Order Quantity | 100 MT |
| Price | USD 1,000-1,500/MT |
| Packaging Details | Sea Freight (Container/Bulk Vessel) |
| Delivery Time | 30-60 Days |
| Payment Terms | L/C, D/A, D/P, T/T |
| Supply Ability | 5,000-15,000 MT/Year |
Product Details
| Steel Grades | ASTM A572 Gr.50 / ASTM A992 / Q355B | Truss Types | Warren, Pratt, Howe, Custom Lattice |
|---|---|---|---|
| Chord Members | H-beams Up To 900mm, Box Sections, Channels | Web Members | Angles, Tubes, Channels |
| Field Connections | High-strength Bolts (A325/A490 / Grade 8.8/10.9), No Field Welding | Surface Protection | Sa2.5 Blast + Primer + Topcoat; Optional Hot-dip Galvanizing |
| Customization | Customized To Customer Requirements | Applications | Large-span Workshops |
Product Description
The Pre‑Engineered Steel Roof Truss is a high‑performance structural framing system for long‑span and heavy‑load applications in industrial and commercial construction. As a highly efficient load‑bearing solution, it transfers loads into pure tension and compression forces via triangulated member network, achieving excellent strength‑to‑weight ratio. Fabricated from high‑strength structural steel with precise manufacturing and reliable anti‑corrosion treatment, this pre‑engineered truss provides required load‑bearing capacity, durability and design flexibility for demanding roof and infrastructure projects.
Pre‑Engineered – Designed for Efficiency
Every steel roof truss is pre‑engineered by professional structural software including STAAD.Pro, SAP2000, RFEM for accurate load calculation and material optimisation matching project demands. The triangulated framework keeps geometric stability under nodal loading, removes bending moment and performs better than solid beams. Pre‑engineering realises strength optimisation, reduces material consumption while maximising load‑bearing performance.
Long‑Span Capability – Clear, Unobstructed Space
Steel roof trusses feature exceptional long‑span capability with single span 6 to 120 metres free of intermediate columns. It creates clear, unobstructed interior space ideal for warehouses, hangars and large‑size venues. It supports flexible floor layout, convenient material handling and smooth site workflow for end‑users.
Steel roof trusses feature exceptional long‑span capability with single span 6 to 120 metres free of intermediate columns. It creates clear, unobstructed interior space ideal for warehouses, hangars and large‑size venues. It supports flexible floor layout, convenient material handling and smooth site workflow for end‑users.
Heavy Load Capacity – Engineered for Demanding Conditions
Pre‑engineered steel roof trusses are built for heavy industrial loads:
- • Live loads up to 120 kg/m²
- • Wind loads up to grade 12
- • Seismic loads up to grade 8
- • Industrial machinery loads and overhead crane loads
- • Snow loads customised for cold‑climate regions
The triangulated configuration guarantees good load distribution and stability against heavy load, wind and earthquake. Deflection is controlled within ≤1/250 of the span to secure structural performance during whole design life.
Specification
| Parameter | Details |
|---|---|
| Truss Type | Roof Truss / Plane Truss / Space Truss – Warren, Pratt, Howe, or custom configurations |
| Span Length | 6 – 120 metres – single span or multiple spans without intermediate columns |
| Steel Grades | Q235B (economical), Q355B (high‑strength), ASTM A572 Gr 50, EN S355JR/S355J2 |
| Member Sections | Tube, angle, or H‑section – customised to design requirements |
| Connection Type | Welded, bolted, or bolted+welded – high‑strength bolts (grade 10.9 or ASTM A325) |
| Surface Treatment | Hot‑dip galvanised (80–120μm) or painted (multi‑layer coating system) |
| Fire Protection | Fireproof coating available upon request |
| Design Standards | GB, EN, ASTM, AS, DIN, JIS – compliant with international building codes |
| Design Software | STAAD.Pro, SAP2000, RFEM – for accurate structural analysis and optimisation |
| Design Life | 30 – 50 years or more |
| Inspection & Testing | Non‑destructive testing (UT / MT) – dimensional inspection and trial assembly |
Custom Fabrication – Tailored to Your Project
Every steel roof truss is custom‑fabricated according to project‑specific requirements. Our engineering team supplies detailed shop drawings and full fabrication documents for precise production.
- • Structural analysis and truss layout design
- • Shop drawing preparation and material confirmation
- • CNC cutting, drilling, and member fabrication
- • Assembly and automatic welding
- • Non‑destructive testing (ultrasonic or magnetic particle)
- • Dimensional inspection and trial assembly
- • Surface treatment (sandblasting, painting, or galvanising)
- • Packing, transportation, and on‑site installation guidance
Custom production avoids costly on‑site modification and ensures good compatibility with overall structural design.
Truss Configurations – Design Flexibility
Multiple truss styles satisfy different architectural and functional needs:
- • Warren Truss – equilateral triangle diagonal members, perfect for long‑span roofing
- • Pratt Truss – vertical members under compression, diagonals under tension, widely used for industrial roofs and bridges
- • Howe Truss – diagonals under compression, verticals under tension, fit for relatively short spans
- • Triangular Truss – pitched roof solution for industrial buildings
- • Polygonal Truss – special shapes for architectural requirements
- • Space Truss – 3D framework for complex large‑scale structures
All types support customised span, pitch, spacing and member sections.
Surface Protection – Galvanised or Painted
Corrosion resistance is realised via hot‑dip galvanising or painting:
- • Hot‑dip galvanising – durable zinc coating for outstanding anti‑corrosion performance for industrial and exposed scenarios
- • Painting – multi‑layer system with optional custom colours for protection and appearance
- • Duplex coating – galvanising plus painting for harsh corrosive environments
High‑grade surface treatment delivers long‑term durability and low‑maintenance performance, extending service life up to 50 years and above.
Applications – Industrial & Commercial
The pre‑engineered steel roof truss acts as main roof supporting system for diverse projects:
- • Industrial buildings – warehouses, workshops, factories, manufacturing plants
- • Commercial facilities – exhibition halls, shopping centres, airports
- • Sports & recreation – stadiums, gymnasiums, indoor arenas
- • Infrastructure – steel‑structure stations, terminals, bridges
- • Special structures – aircraft hangars, conveyor systems, canopies
- • Agricultural buildings – storage facilities, barns
Its modular design enables flexible span adjustment and fast field installation to control project timeline and cost.
Quality Assurance & Certification
All trusses are produced under strict quality control with complete material traceability:
- • Incoming material inspection – mill test certificate and property verification
- • In‑process inspection – dimension check, weld quality control and surface preparation
- • Final inspection – full testing and documentation before shipment
- • Certification – ISO 9001:2015 and CE marking available
- • Testing – on‑demand non‑destructive testing(NDT)
- • Full traceability – material certificates and inspection reports supplied per order
Why Choose Our Pre‑Engineered Steel Roof Trusses?
For industrial and commercial projects requiring long spans, heavy load capacity and structural efficiency, our pre‑engineered steel roof trusses are reliable solutions. Featuring 6‑120 metres span range, optional steel grades & connection forms, durable galvanised / painted anti‑corrosion treatment and full customisation, our products provide stable structural performance and long‑term value. Supported by professional engineering service, advanced production lines and international qualifications, Hangzhou FAMOUS Steel Engineering Co., Ltd. from China is your trustworthy supplier for global steel roof truss projects worldwide.
Contact us today to share your roof project demands. Provide information including span, loading, truss type preference, steel grade and surface treatment, our technical team will send you custom‑designed proposal and competitive quotation within 24 hours.
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