Direct wholesale structural modules engineered for structural integrity, rapid site mobilization, and high structural efficiency.
The global demand for temporary and permanent modular spaces has shifted from basic shelter structures to high-performance, load-bearing removable container structures. In commercial site offices, mining infrastructure camps, and emergency resettlement efforts, physical resilience and modular flexibility dictate spatial layouts. As structural engineers, we look beyond the superficial container aesthetics to evaluate structural deflection limits, mechanical wind resistance tolerances, and long-term anti-corrosion behaviors of materials.
Traditional structural welding designs have yielded to detachable systems. Unlike standard shipping ISO containers, modern removable and detachable container structural designs feature hot-dip galvanized cold-formed steel frames coupled with sandwich composite panels. These systems drastically lower transportation costs by allowing flat-packed units to pack 4-6 structural units into a single standard 40HQ container, transforming cargo distribution efficiencies.
Leading the Modern Modular Engineering Movement from the Core of the Greater Bay Area
Foshan Zhonghui Green Building Integrated Housing Co., Ltd., strategically localized within the highly dynamic Guangzhou-Hong Kong-Macao Greater Bay Area, is an industry-defining enterprise integrating comprehensive design, state-of-the-art research and development, smart production, global sales operations, and full-lifecycle support. We focus on providing customers with professional, turn-key industrial modular space solutions.
Established and cultivated by our core founding team through 15 years of dedicated specialization in steel-frame modular integration, Zhonghui has established a proprietary IP portfolio consisting of 46 invention patents and utility model patents. Our structural components conform strictly to national and international load testing specifications. Among various domestic and regional trade acknowledgments, our efforts have garnered prestigious titles including the "Container Creativity Floater Award", "Top Ten Influential Industry Brands", and multiple green construction innovation designations. We serve as a hallmark enterprise representing Chinese prefabricated building standards to international construction buyers.
Inside Our Automated Manufacturing Matrix Engineered for Global Cost Optimization
At our manufacturing facilities, the convergence of automated structural machining and lean processing workflows establishes a high-capacity production base. Our Factory 4.0 strategy addresses the primary challenges in modular construction procurement: dimensional tolerances, structural steel treatment reliability, and volume scalability.
Our main frame fabrication lines employ multi-axis robotic arm welding systems that deliver flawless structural welds. This limits human deviation and ensures structural components maintain a structural deflection variance of under 1mm across batch runs.
All main structural frame members undergo hot-dip galvanization (minimum coating mass of 120-180g/m²). This is coupled with electro-static powder coatings to resist harsh atmospheric chemical exposures (C3-C4 corrosion environments).
Positioned directly in the industrial core of Southern China, we procure premium Q235B and Q355B structural steel directly from state-owned mills, enabling stable raw material pricing buffers and rapid output scaling.
Our workshop processes follow tight QA/QC workflows, with strict checks at each phase including plate cutting, hydraulic pressing, side beam punching, painting, and test packing. These rigid internal workflows eliminate fitment alignment issues during on-site installation, reducing labor costs on remote project sites.
Detailed design specifications of our removable container houses
| Structural Element | Technical Design Standard | Material Composition & Value |
|---|---|---|
| Primary Steel Frame | Q235B/Q355B cold-formed hot-dip galvanized structural profile steel | Thickness: 2.5mm - 4.0mm structural grade rails, corner posts, and main load beams. |
| Floor System | Cement fiberboard / MGO board paneling | 18mm high-density board (fire protection grade: A1), finished with 1.8mm commercial PVC floor leather. |
| Wall Insulation Panels | Rock wool / PU (Polyurethane) / EPS sandwich composite paneling | 50mm/75mm/100mm thickness. Density: Rockwool ≥ 120 kg/m³, thermal conductivity: ≤ 0.044 W/(m·K). |
| Roof System | Galvanized steel sheets, PU insulation layer, acoustic ceiling panels | Four-point structural downspout gutter system integrated inside corner posts. Roof load rating: 1.2 kN/m². |
| Seismic Tolerance | GB 50011-2010 (Seismic Design of Buildings) | Classified for Seismic Intensity Zone 8 parameters. |
| Wind Loading Capacity | AS/NZS 1170.2, EN 1991-1-4 design protocols | Engineered to resist wind velocities up to 120-140 km/h (Category 1 Hurricane equivalent). |
We are committed to a continuous R&D trajectory aimed at zero-carbon modular architecture. Research focuses include:
Precision manufacturing processes and quality control systems monitored by modular design specialists.
Proven execution of modular layouts across complex environments
Custom structural spaces configured with high structural spans, changing rooms, and viewing decks.
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Designed for high altitude environments. Features thermal break walls to withstand temperature swings in South America.
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Emergency response solution for large-scale housing needs, demonstrating high-capacity output.
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Double-tier office layout with internal stairs, anti-corrosive coatings for humid environments.
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Optimized housing project designed for fast assembly on-site with built-in facilities.
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Engineered to meet US structural guidelines, showing structural flexibility in commercial designs.
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Resort hospitality modules that stack up to three levels with exterior glass facade systems.
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Eco-friendly modular cabins nestled in natural terrain, minimizing ground disturbance.
Learn More →Transparent pricing frameworks for sourcing procurement agents, estimators, and project leads
Pricing for removable container structures is determined by structural thickness, steel grade, isolation core materials, and customization levels. By operating as a direct factory, Foshan Zhonghui helps volume buyers bypass intermediary agent fees.
Below is a standard wholesale guideline for 20ft (6055 x 2438 x 2896 mm) standard specification modules. Custom modifications will adjust structural pricing:
| Module Type | Standard Specs | Estimated FOB Price (USD) / Unit | Minimum Order Qty (MOQ) |
|---|---|---|---|
| Flat-Pack Detachable Module | 2.5mm steel rails, 50mm EPS wall, MGO floor system | $1,300 - $1,600 | 12 Units (Fits in 1x40' HQ) |
| Robust Detachable Site Office | 3.0mm steel rails, 75mm Rockwool wall, Cement board floor | $1,800 - $2,200 | 6 Units |
| Foldable/Collapsible Box Module | Foldable joint mechanism, pre-wired electrical system | $1,500 - $1,900 | 8 Units (Fits in 1x40' HQ flatbed) |
| 3-in-1 Expandable Structure | Dual-side wings, hydraulic assist rails | $8,000 - $11,500 | 2 Units (Fits in 1x40' HQ) |
Note: Prices are estimates based on material costs and do not include inland freight, custom sea cargo tariffs, or localized structural certifications.
Exporting structural integrity that complies with regional construction regulations
One of the major issues in international modular shipping is compliance with destination building codes. Modular containers that fail localized zoning rules can face delays or require expensive retrofits on site.
Zhonghui addresses this by offering regional compliance customization options during the design phase:
Answers to technical, logistics, and pricing questions about our removable structures
Explore our standard models for immediate factory order placement and customized configurations
ZHONGHUI HOLDINGS
