Prefabricated Heavy Steel Structure Warehouse Kit 12m-36m Span Q355/A572/S355JR

Our prefabricated steel structure warehouse is an engineered metal building solution designed for logistics hubs, distribution centers, manufacturing plants, and bulk-storage facilities worldwide.

The primary structural system uses hot-rolled H-section portal frames fabricated from Q355B (yield strength ≥ 355 MPa) steel, providing an unobstructed clear span of up to 100 m and an eave height of up to 20 m—ideal for high-bay racking, oversized machinery, or double-stacked containers. All welded connections conform to inspection standards, with ultrasonic or magnetic particle testing applied to primary welds.

The building envelope uses 75 mm PIR/EPS insulated sandwich panels for roofing and wall cladding, achieving U-value ≤ 0.35 W/m²*K—suitable for temperature-sensitive inventory management without additional insulation retrofits.

Every project is delivered as a complete knock-down (CKD) package: precision-cut, pre-drilled, shop-primed (2 × 60 µm epoxy zinc-rich primer), and labeled for bolt-together on-site assembly. Average erection time is 2-4 weeks for a 5,000 m² structure with a 15-person crew, dramatically reducing project timelines versus conventional reinforced-concrete construction.

The core of a steel-structure warehouse consists of four main components working in concert to ensure stability, weather-tightness, and functionality:

• Primary Structure (Load-Bearing Core): Comprising steel columns and beams (typically Q345B/Q355B grade steel) and purlins (galvanized C- or Z-section steel; sizes C120-C320 and Z100-Z200). These elements are interconnected via high-strength bolts or welding to support various structural loads.
• Enclosure System (Protective Barrier): Features mainstream lightweight color-coated steel sandwich panels (utilizing glass wool or polyurethane as core materials), which provide dual benefits of thermal insulation and moisture resistance. Lightweight infill materials may be optionally selected for the base layer.
• Roofing System (Waterproofing & Energy Efficiency): Constructed using corrugated or profiled color-coated steel sheets. Available in three distinct insulation configurations, the system can be enhanced with the addition of skylight panels and ridge ventilators; all structural joints are engineered to ensure effective waterproofing and leak prevention.
• Auxiliary Components: Includes the foundation, connection bolts, drainage systems, and ventilation systems, all of which contribute to the overall structural stability and the safety of stored goods.

• Comprehensive Customization: We offer a one-stop solution covering the entire process—from initial site surveys, design conceptualization, and factory prefabrication to on-site installation and post-completion maintenance. Our dedicated professional team monitors every stage to ensure all client requirements are met.
• High-Standard Quality Assurance: Our structural components are crafted from premium-grade steel and produced through mechanized factory processes with precision-controlled accuracy. Certified under ISO9001, CE, and other standards, all our products come with a one-year warranty against manufacturing defects, guaranteeing exceptional quality.
• Expert Technical Support: With over 20 years of industry experience, we hold top-tier qualifications in steel structure design (Grade A), manufacturing (Special Grade), and construction (Grade I). We provide advanced BIM-driven design and digital prefabrication services, enabling us to effectively resolve complex design challenges involving large spans and intricate structures.
• Global Delivery Capabilities: With overseas production bases and products exported worldwide, we are fully equipped to undertake large-scale warehousing projects. Our delivery cycles are 15-20% shorter than the industry average, ensuring the efficient and timely realization of your projects.
• Comprehensive After-Sales Support: We provide online technical assistance and regular maintenance guidance, responding promptly to client inquiries and resolving any issues that may arise during operation, thereby ensuring our clients remain completely worry-free.

Factors influencing the cost include raw material prices, warehouse dimensions, span and height requirements, material specifications, fire and corrosion protection requirements, and construction complexity. You may provide your specific requirements or architectural drawings, and we will provide you with a precise cost estimate.

Steel-structure warehouses are better suited for single-story buildings featuring large spans and extensive cantilevers; they offer shorter construction cycles, high space utilization efficiency, flexible expandability, and eco-friendliness. Concrete warehouses, conversely, are more suitable for multi-story buildings with dense column grids, as well as for applications—such as in the chemical or biopharmaceutical sectors—where fire and corrosion resistance requirements are exceptionally stringent. Overall, steel-structure warehouses hold distinct advantages in terms of warehousing efficiency, construction speed, and total lifecycle cost.

Maintenance for steel-structure warehouses is straightforward. It primarily involves periodic inspections to check for damage to component coatings or loose bolts; any issues discovered should be promptly addressed by repairing the coating or tightening the bolts. For structures located in corrosive environments—such as coastal regions—enhanced anti-corrosion treatments can be applied. The absence of complex daily maintenance procedures significantly reduces long-term maintenance costs.

Yes. Steel-structure warehouses feature a modular design, allowing for future expansion by adding steel columns and beams to the existing framework without the need to demolish the original structure, thereby ensuring uninterrupted business operations. Furthermore, these structures can be dismantled and relocated, with components capable of being repurposed and reused to accommodate corporate site relocations or facility layout adjustments.