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AISC-Compliant Custom Steel Truss Designed for Large-Span Workshop Construction

  • Product: AISC-Compliant Custom Steel Truss – engineered specifically for large-span workshop construction.

  • Standard: Designed and fabricated in full compliance with AISC 360 (Specification for Structural Steel Buildings).

  • Customisation: 100% custom-engineered – span, geometry, member sizing, and connections tailored to your project.

  • Fabrication: Factory prefabricated with precision CNC equipment and AWS D1.1 certified welding.

  • Application: Ideal for large-span workshops, assembly halls, manufacturing facilities, and industrial buildings requiring column-free interiors.


    Our AISC-Compliant Custom Steel Truss is purpose-engineered for large-span workshop construction where standard solutions fall short. Manufactured to the rigorous requirements of AISC 360 – the American Institute of Steel Construction's Specification for Structural Steel Buildings – this truss delivers exceptional structural integrity, seismic resilience, and design flexibility. Every truss is custom-engineered to your specific span, load, and geometry requirements, ensuring optimal material efficiency and cost-effectiveness. With factory prefabrication and AWS D1.1 certified welding, we deliver a truss that is ready for rapid on-site erection – saving you time and labour costs.

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    Why AISC Compliance Matters for Your Workshop

    AISC 360 is the most widely recognised structural steel standard for building construction in North America and many international markets. By specifying an AISC-compliant truss, you gain:

    • • Structural integrity – proven design methodology for strength, stability, and serviceability

    • • Seismic resilience – AISC 341 provisions available for earthquake-prone regions

    • • Design flexibility – standardised connection details and member design criteria

    • • Code acceptance – recognised by building officials and inspectors worldwide

    • • Quality assurance – fabrication tolerances and inspection requirements are clearly defined

    For large-span workshops – where structural failure would pose significant safety and operational risks – AISC compliance provides the engineering confidence your project demands.

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    Engineered for Large-Span Workshops

    Large-span workshops present unique structural challenges that our custom steel truss addresses directly:

    • Column-Free Interiors
    Workshops require unobstructed floor space for production lines, heavy equipment, and material flow. Our truss designs achieve spans of 30–60+ metres without intermediate columns, maximising usable floor area and operational flexibility.

    • Heavy Load Capacity
    Workshops support significant loads: overhead cranes (5–50+ tons), roof-mounted HVAC, exhaust systems, fire sprinklers, and maintenance loads. Our trusses are engineered to handle these combined load conditions with appropriate safety factors.

    • Design Flexibility
    Every workshop layout is different. We offer multiple truss configurations – Warren, Pratt, Howe, or custom lattice – and can integrate with your existing column grid, roof slope, and building envelope requirements.

    • Future Adaptability
    AISC-compliant detailing allows for future modifications – mezzanine floors, additional crane capacity, or building extensions – without major structural changes.


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    Custom-Engineered – Built to Your Exact Specifications

    We don't offer one-size-fits-all. Every truss is custom-engineered to match your project requirements:

    • • Span length – matched to your building dimensions (15–60+ metres)

    • • Roof slope – single pitch, double pitch, or flat as required

    • • Member sections – H-beams, channels, angles, or tubes optimised for structural efficiency

    • • Connection details – bolted field connections (preferred) or shop-welded

    • • Load conditions – dead, live, snow, wind, seismic (AISC 341 available)

    • • Crane integration – provisions for overhead bridge and gantry cranes

    • • Surface treatment – shop primer, paint system, or hot-dip galvanized

    Engineering Deliverables:

    • • 3D models (Tekla Structures / STAAD Pro)

    • • Detailed shop drawings with dimensioned members

    • • Erection plans with step-by-step assembly sequence

    • • Connection details for field bolting

    • • Material take-offs and lifting plans

    Material Selection – Quality Steel, Fully Traceable

    We manufacture our AISC-compliant trusses from premium structural steel grades:

    Grade Standard Yield Strength Application
    ASTM A572 Grade 50 ASTM A572 345 MPa (50 ksi) Heavy‑duty, large‑span – preferred for AISC projects
    ASTM A992 ASTM A992 345 MPa (50 ksi) Wide‑flange shapes – superior weldability
    Q355B GB/T 1591 355 MPa Equivalent to A572 Gr.50 – international projects

    Full Mill Test Certificates (MTCs) with heat number traceability are provided with every order, ensuring complete material transparency.

    Fabrication to AWS D1.1 – Quality You Can Trust

    All fabrication is performed in our facility to AWS D1.1 Structural Welding Code requirements:

    CNC Cutting & Drilling
    Precision equipment ensures exact member lengths and accurate bolt hole positions to AISC Code of Standard Practice tolerances.

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

    Certified Welding
    All welding is performed by AWS D1.1 certified welders using approved WPS (SMAW/GMAW/SAW).

    Inspection & Testing

    • • Dimensional verification against shop drawings

    • • Visual inspection of all welds

    • • NDT (UT/MT) on critical joints as required

    • • Coating thickness verification

    Trial Assembly – available for complex projects to verify fit before shipment.

    Quality Assurance – AISC Code Compliance

    We maintain a rigorous quality system aligned with AISC requirements:

    • • Design Verification – all designs reviewed by qualified structural engineers

    • • Material Traceability – MTCs with heat numbers for every component

    • • Welding Quality – AWS D1.1 certified welders and approved WPS/PQR

    • • Fabrication Tolerances – per AISC Code of Standard Practice (length ±2mm, straightness ≤L/1000)

    • • NDT Inspection – UT/MT as required by project specifications

    • • Third-Party Inspection – we welcome SGS, BV, TÜV, or your chosen inspector

    Complete documentation provided with every shipment: MTCs, WPS/PQR, NDT reports, dimensional records, and as-built drawings.

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    Specifications (Customisable)

    Parameter Details
    Design Standard AISC 360 (Specification for Structural Steel Buildings)
    Seismic Design AISC 341 available on request
    Fabrication Standard AWS D1.1 (Structural Welding Code)
    Steel Grades ASTM A572 Gr.50 / ASTM A992 / Q355B (buyer's choice)
    Yield Strength 345–355 MPa depending on grade selected
    Truss Configurations Warren, Pratt, Howe, or custom lattice
    Chord Members H‑beams (up to 900mm depth), box sections, or channels
    Web Members Angles, tubes, or channels
    Steel Thickness 6–40mm, customised per design
    Span Capability 15–60+ metres, column‑free
    Field Connections High‑strength bolts (ASTM A325/A490 / Grade 8.8/10.9) – no field welding
    Surface Protection Standard: Sa2.5 blast → 75μm zinc primer → 120–160μm topcoat
    Upgrade: Hot‑dip galvanizing ≥85μm (ASTM A123)
    Design Life 30–50 years in workshop atmospheric conditions

    All specifications are fully customisable to your project drawings and local building codes.

    Why Choose Our AISC-Compliant Custom Steel Truss?

    • • AISC 360 compliant – recognised and accepted by building officials worldwide

    • • Custom-engineered – every truss designed for your specific span, load, and geometry

    • • AWS D1.1 certified fabrication – welding quality you can trust

    • • Factory prefabrication – reduces on-site labour and installation time

    • • Complete documentation – MTCs, NDT reports, and as-built drawings provided

    • • Seismic design available – AISC 341 for earthquake-prone regions

    At Hangzhou FAMOUS Steel Engineering Co., Ltd. (FASECbuilding), we specialise in AISC-compliant custom steel trusses for large-span workshop construction. Our 50,000m² facility, in-house engineering team proficient in Tekla Structures and STAAD Pro, and ISO 9001-certified quality system ensure reliable quality and on-time delivery for projects of all scales.

    We're ready to support your next large-span workshop project – let's discuss your requirements and design the ideal truss solution together.