ZhongSai Steel Structure designs, fabricates and exports complete prefab steel factory and workshop buildings for overseas industrial projects. Whether you need a clear-span manufacturing plant, a crane-equipped production workshop, or a heavy-duty processing facility, we deliver a complete steel building package from primary frame to cladding. 15+ years export experience, 100,000 m² production base, 100,000 tons annual capacity, ISO 9001 certified.
Our steel factory and workshop buildings serve a wide range of industrial applications.
Production facilities for machinery, equipment, electronics, food processing and other manufacturing industries. Designed for production line layout and material flow.
Processing facilities for metal fabrication, woodworking, textile, chemical and other processing operations. Designed for equipment loads, ventilation and process requirements.
Multi-bay production facilities with clear-span or multi-span layouts. Designed for efficient production flow, material handling and future expansion.
Assembly facilities for automotive parts, machinery assembly, electronics assembly and other assembly operations. Designed for assembly line layout and overhead crane access.
General-purpose industrial workshops for maintenance, repair, fabrication and storage operations. Flexible layout suitable for various industrial uses.
Automotive parts manufacturing and assembly facilities. Designed for production equipment, painting zones, welding areas and quality inspection spaces.
Every factory building is designed around your specific operational requirements.
| Design Factor | Considerations |
|---|---|
| Clear Span | Single-span (12m-36m) for unobstructed floor space, or multi-span with intermediate columns for wider buildings. Span depends on production layout, equipment size and crane requirements. |
| Building Height | Eave height typically 6m-15m, determined by equipment height, crane lifting height, racking systems and production process requirements. Higher eaves available for special applications. |
| Crane Requirements | Overhead crane systems from 5t to 50t, single-girder or double-girder. Crane runway beams, column reinforcement and structural loads designed according to your crane specifications (load class, lifting height, span). |
| Equipment Loads | Point loads from heavy machinery, vibration loads from processing equipment, and concentrated loads from production lines. Structural design accounts for all specified equipment loads and dynamic effects. |
| Ventilation | Natural ventilation via ridge vents and louvers, or mechanical ventilation systems for heat-intensive or fume-generating processes. Designed based on your process heat load and air change requirements. |
| Lighting | Natural lighting via translucent roof panels and side windows, or designed for artificial lighting layout. Lighting zones coordinated with production areas and inspection spaces. |
| Roof & Wall Systems | Single-sheet steel cladding for standard applications, or insulated sandwich panels (EPS/rock wool/PU) for temperature-controlled environments. Roof slope, drainage and gutter systems designed per local rainfall. |
| Corrosion Protection | Surface treatment specified per environment: standard paint system (epoxy zinc-rich primer + polyurethane topcoat), hot-dip galvanizing for corrosive environments, or weathering steel for special applications. |
| Future Expansion | Buildings can be designed for future lengthwise or widthwise expansion, with pre-designed connection points and modular frame layouts. Expansion joints and structural continuity planned from the initial design. |
Whether you have detailed drawings or just a project concept, we have a clear path forward.
If you have approved structural drawings, BOQ and technical specifications, we can provide a detailed fabrication and supply quotation. Our engineering team reviews your drawings for fabrication feasibility and provides a comprehensive quote with material breakdown.
Send Drawings for Quote →If you don't have structural drawings yet, we can provide a preliminary steel building solution and budget estimate. We need your project country, building dimensions, intended use and any special requirements to get started.
Get Preliminary Solution →A complete factory building supply package includes all structural and cladding components.
All primary and secondary steel components are fabricated in our 100,000 m² production base. CNC cutting, drilling, welding, assembly and surface treatment under ISO 9001 quality management. We fabricate according to your drawings or our design.
View Fabrication Service →Professional packing, container loading optimization, export documentation (commercial invoice, packing list, bill of lading, certificate of origin), logistics coordination, and overseas installation technical guidance. We do not perform on-site construction.
Providing the following information helps us deliver an accurate and timely quotation.
Country and city for design loads and shipping
Manufacturing, processing, assembly, etc.
Length, width and eave height in meters
Crane capacity, type and lifting height
Structural drawings, BOQ or concept sketches
Required production and delivery timeline
Single sheet or insulated sandwich panel
GB, ASTM/AISC, EN/Eurocode, AS or project spec
Explore related steel building solutions and fabrication services.
Clear-span steel warehouses for storage, logistics and distribution. High eave, loading dock and racking options.
View Warehouses →Heavy-duty industrial buildings for processing plants, mining facilities and heavy equipment operations.
View Industrial →Custom structural steel fabrication from drawings. Cutting, welding, assembly, QC, packing and export.
View Fabrication →Common questions about steel factory and workshop buildings.
Steel factory buildings typically range from 12m to 36m clear span for single-span designs. Multi-span buildings can achieve much greater widths by adding intermediate columns. The optimal span depends on your production layout, equipment size and crane requirements. We design each factory building according to your specific operational needs and available land dimensions.
Yes. Steel factory and workshop buildings can be designed with overhead crane systems. We support single-girder and double-girder cranes, typically from 5 tons to 50 tons capacity. The structural frame, columns and crane runway beams are designed according to your crane specifications, including load class, lifting height and span. We need your crane data (capacity, type, lifting height, span) for accurate structural design.
Not necessarily. If you have structural drawings, we can fabricate directly from your drawings and BOQ. If you only have land dimensions and a basic idea of your factory layout, we can provide a preliminary structural design solution and budget estimate. We need: project country, building dimensions (length × width × eave height), intended use, crane requirements (if any), and any local building code requirements. From there, we can develop a complete design solution.
A complete factory building supply package typically includes: primary steel frame (columns, beams, rafters), secondary steel (purlins, girts, bracing), roof and wall cladding systems (single sheet or insulated sandwich panels), doors and windows, bolts and fasteners, and all relevant accessories. We also provide fabrication, packing, container loading, export documentation and installation technical guidance. We do not perform on-site construction or local civil works.
Factory building components are packed by assembly group for efficient shipping. Primary frames are bundled with component marking, purlins and cladding are packed in protected bundles, and small items (bolts, brackets, accessories) are boxed with packing lists. We optimize container loading to maximize volume and weight utilization. Each container has a detailed packing list cross-referenced to erection drawings, making on-site assembly straightforward for your local team. Long pieces may require open-top or flat-rack containers.
Yes. We design factory buildings according to your project location's wind load, snow load and seismic requirements. We work with international design standards including GB (Chinese), ASTM/AISC (American), EN/Eurocode (European) and AS (Australian). For high-wind regions (hurricane/typhoon zones) or seismic zones, we adjust member sizes, bracing systems and connection design accordingly. We need your project location and applicable design standard for accurate design and load calculation.
Yes. We provide comprehensive installation technical guidance for all factory building projects. This includes: detailed erection drawings with assembly sequence, component numbering system, bolt schedules and connection details, installation manuals, and remote technical support via video call and email. For complex or large projects, we can dispatch engineers to your site for installation supervision and training of your local erection team. Note: we do not perform on-site construction ourselves — we provide technical guidance for your local installation team.
ZhongSai Steel Structure is a China-based steel structure manufacturer and export supplier. We provide: design detailing, factory fabrication, complete material supply, packing, container loading, export documentation, logistics coordination, and overseas installation technical guidance.
We are NOT a local general contractor, local construction company, or EPC contractor in your country. We do not perform on-site construction, local civil works, or turnkey local installation. Our team provides remote technical guidance and drawing support for your local installation team.
Send your structural drawings, BOQ or technical specifications. Our engineering team will review and provide a detailed factory building quotation.
Send Your Drawings / BOQ →Tell us about your factory project: country, dimensions, intended use, crane requirements. We will provide a preliminary solution and budget estimate.
Get Your Factory Solution →Prefer to talk directly? Contact our sales team:
