CE-Marked Prefabricated Roof Truss for Manufacturing Plants and Distribution Centers

• Customization: Available
• After-sales Service: 24/7 Online Technical Support
• Connection Form: Welded Connection
• Model NO.: Truss
• Construction Member: Steeltruss
• Grade: Low-Alloy High-Tensile Structural Steel
• Molding Method: Hot-Rolled Steel
• Residential Wall Structure: Wall Stud
• Standard: ASTM
• Steel Type: High-Strength Steel
• Structure: Truss Structure
• Certification: CE Marked (En 1090)
• Steel Grade: S355jr / Q355b / S275jr
• Design Code: Eurocode 3 (En 1993)
• Truss Type: Warren / Pratt / Howe / Custom
• Finish: Shop Primer / HDG / Anti-Corrosion
• Fabrication: 100% Shop-Prefabricated
• Application: Manufacturing Plants, Distribution Centres
• Transport Package: Seaworthy Packing
• Specification: Heavy Section Steel
• Trademark: Quality Carbon Structural Steel and Alloy Structur
• Origin: China
• HS Code: 730890000
• Package Size: 150.00cm * 120.00cm * 80.00cm
• Package Gross Weight: 300.000kg
• Lead Time: 180 days (1 - 100 Tons) ; To be negotiated ( > 100 Tons)

Product Description

Our Prefabricated Roof Truss is specifically designed for manufacturing plants and distribution centres—facilities that demand wide, obstruction-free floor space for production lines, conveyor systems, and high-bay storage.

Each truss features a triangular lattice configuration that efficiently transfers loads through axial forces, delivering exceptional span capability with optimised steel weight. Every unit is shop-fabricated, pre-assembled for dimensional verification, and ready for rapid on-site erection—minimising project timelines and labour costs.

Key Advantages – Why Choose Our Roof Truss
Column-Free Interior Space
Our truss design allows spans tailored to your project requirements—creating open floor plans that maximise operational flexibility for manufacturing equipment, racking systems, and material flow.

Material Efficiency
The triangular geometry provides high strength-to-weight ratio, using less steel than conventional beam systems while maintaining structural integrity. This translates to lighter foundations and lower overall project cost.

Factory-Controlled Quality
All fabrication occurs in our ISO 9001-certified facility under controlled conditions. Precision cutting, drilling, and assembly ensure consistent quality—eliminating on-site fabrication risks and rework.

Complete Documentation
Every shipment includes full Mill Test Certificates, weld procedure records, NDT reports, dimensional inspection records, and a Declaration of Performance—giving you complete transparency for project files and regulatory compliance.

Engineering & Design Capability

We provide full in-house engineering services from concept through to shop drawings:

• Structural analysis: STAAD Pro and Tekla Structures for 3D modelling and load verification
• Connection design: Bolted or welded connections detailed per EN 1993-1-8
• Load considerations: Dead, live, snow, wind (Eurocode 1), seismic (Eurocode 8 on request)
• Coordination: We work with your project team to ensure truss design integrates with cladding, mechanical systems, and overhead equipment
We deliver detailed erection drawings with clear member identification, making on-site assembly straightforward and efficient.

Steel Material – Quality Assured

We source structural steel from certified mills with full traceability:

Grade	Standard	Yield Strength (≤16mm)	Application
S355JR	EN 10025-2	≥355 MPa	Heavy-duty, large-span trusses
Q355B	GB/T 1591	≥355 MPa	Equivalent to S355JR
S275JR	EN 10025-2	≥275 MPa	Light to medium loads

Every steel delivery includes Mill Test Certificates confirming chemical composition, mechanical properties, and heat numbers—fully traceable from mill to finished product.

Fabrication Process – Precision at Every Step

Cutting & Drilling
CNC machines ensure precise cutting to length and accurate hole positioning for all members.

Assembly
Components are positioned on purpose-built jigs to maintain consistent geometry across all trusses.

Welding
By qualified welders using approved WPS (SMAW/GMAW/SAW). Full weld penetration and quality controlled through visual inspection and NDT.

Inspection

• Ultrasonic Testing (UT) for butt welds
• Magnetic Particle Testing (MT) for surface defects
• Dimensional inspection against shop drawings
• Coating thickness verification for surface treatment
Surface Treatment
Abrasive blast to Sa2.5 followed by shop primer (75μm) or hot-dip galvanizing per EN ISO 1461 (min. 85μm mean thickness).

Final Check
Complete truss measured, inspected, and documented before packing.

Quality Assurance System
We operate a structured quality system aligned with international standards:

• EN 1090 Factory Production Control (FPC) – systematic in-process inspection
• ISO 9001 – comprehensive quality management
• Material traceability – each component linked to its heat number
• Weld qualification – welders certified to EN ISO 9606-1 with approved WPS/PQR
• NDT operator certification – EN ISO 9712 Level 2
• Inspection equipment calibration – all gauges and test devices traceable to standards
We welcome third-party inspections (SGS, BV, TÜV, etc.) at any stage of production.

Specification

Item	Detailed Description
Structural Design	Design Code: Eurocode 3 (EN 1993-1-1). Execution: EN 1090-2. Execution Class: EXC2 (standard) / EXC3 (on request). Seismic: Eurocode 8 (EC8) available. Roof slope: As per architectural requirements.
Steel Properties	S355JR (EN 10025-2): Yield ≥355 MPa (t≤16mm) / ≥345 MPa (16-40mm); Tensile 470-630 MPa; Elongation ≥22%; CEV ≤0.45%. Q355B: equivalent with -20°C impact toughness. MTCs provided.
Member Sections	Chords: H-beams, fabricated box sections, up to 900mm depth. Webs: Angles, channels, or tubes. Thickness: 6-40mm per design. Stiffeners: At supports, splices, and load points. All sections verified for local and global buckling.
Connection Engineering	Welded: Full-penetration butt welds for chord splices; fillet welds for web-to-chord joints. Bolted: High-strength friction-grip bolts (Grade 10.9) for field connections. Gusset plates: 10-20mm thickness, bolt pattern optimised per EN 1993-1-8.
Corrosion Protection	Standard: Abrasive blast to Sa2.5 → Zinc-rich primer 75μm DFT → Epoxy/polyurethane topcoat (total 120-160μm DFT). Upgrade: Hot-dip galvanizing per EN ISO 1461, mean ≥85μm. Suitability: C2 to C5 corrosivity categories per ISO 12944.
Fabrication Tolerances	Per EN 1090-2: Length ±2mm; Straightness ≤L/1000; Squareness ±1°; Hole centre distance ±1.5mm; Flange flatness ≤2mm per metre. Verified with precision measurement equipment.

All parameters are fully customisable – we tailor every truss to your project drawings and local code requirements.

Packaging & Shipping

Crating: Steel-framed crates or bundled with edge protection, shrink-wrap, and VCI paper for moisture protection
Identification: Each member labelled with a unique erection tag matching assembly drawings
Containerisation: Flat-rack or open-top containers for standard spans; break-bulk available for oversized members
Documentation: Packing list, lifting plan, erection sequence, and compliance documents included with shipment

After-Sales Service
Erection support: Detailed step-by-step erection drawings and site assistance available
Warranty: 12 months on material and workmanship
Technical backup: Engineering support available post-shipment
Spare parts: Quick re-supply of bolting components if needed

Company Profile

Hangzhou FAMOUS Steel Engineering Co., Ltd. (FASECbuilding) is a steel structure manufacturer with extensive experience in prefabricated trusses for industrial facilities worldwide.

Our Capabilities	Overview
Facility	50,000m² workshop with CNC cutting, automatic welding, and precision assembly lines
Engineering Team	30+ structural engineers proficient in Tekla, STAAD Pro, and Eurocode design
Certification	EN 1090 Factory Production Control, ISO 9001
Global Experience	Supplied trusses for manufacturing plants, distribution centres, warehouses, and commercial complexes across Europe, Americas, Middle East, and Southeast Asia
Production Capacity	50,000+ tons per year, capable of handling projects of all scales
Quality Commitment	Full material traceability, certified welders, NDT inspection, and comprehensive documentation

We deliver engineered steel trusses with reliable quality, clear documentation, and on-time delivery.