he double-deck expandable container is a multi-story modular building system constructed with a high-strength steel frame. It remains compact during transport and expands into a two-level structure on-site. Designed for structural strength, comfort, and commercial aesthetics, it is ideal for resorts, homestays, private residences, and commercial office projects.
Product Advantages

Double-floor space efficiency
Flexible Space Expansion: Vertical double-layer design with horizontal and vertical expansion options to meet diverse project requirements.
High-Strength Structure: Main frame made of Q345B premium steel, fully welded to ensure overall stability.
Rapid Installation: Modular design with standardized connections allows assembly of a single unit within 2–3 hours.
Easy Transportation: Foldable and detachable design reduces transport volume, suitable for bulk shipping or overland transport.
Comfortable Living:The walls and roof are made of EPS color steel composite panels or rock wool insulation materials to ensure thermal insulation comfort and sound insulation effect.
High Durability: Excellent wind and seismic resistance, with anti-corrosion coating providing a service life over 20 years.
Structural Performance
Steel Specification: High-quality galvanized steel, 2.0mm thick.
Welding Technique: Full CO₂ welding or fillet welding ensures overall structural integrity
Load Bearing: Floor uniformly bears 5 kN/m²; roof load up to 1.5 kN/m²
Wind & Seismic Resistance: Can withstand level 8 wind, compliant with seismic codes
Thermal Insulation: 75mm polyurethane sandwich panels, thermal conductivity ≤0.04 W/m·K
Fire Resistance: Class A fireproof materials, compliant with international fire safety standards
Expansion Mechanism: Steel sliding rails with lockable interfaces ensure safe and reliable horizontal or vertical expansion

Product Applications
Homestays & Resorts
Elevated views and hotel-level living experience.
Private Residences
Flexible layouts for bedrooms, study rooms, and living areas.
Commercial Offices
Upper and lower floors can serve as workspaces and meeting areas.
Specialty Commercial Use
Sales centers, cafés, retail stores, exhibition units, and more.
why choose us
Factory Direct
As a specialized manufacturer of expandable prefabricated homes, Zhongding controls the entire production process, from raw material sourcing to final assembly. This ensures consistent quality and enables us to offer highly competitive wholesale pricing without the need for middlemen. With a monthly production capacity exceeding 1,000 units, we can meet the needs of projects of all sizes.
Reliable Quality and Certifications
Our homes are constructed with galvanized steel frames and fire-resistant sandwich panels and are tested to ASTM, CE, and ISO 9001 standards. Each unit undergoes a rigorous inspection before shipment to ensure durability, safety, and a long lifespan.


Fast Installation and Cost Savings
Each unit is 90% prefabricated in our factory, and electrical and plumbing systems are pre-installed. This reduces on-site labor costs and installation time-three workers can complete assembly in four hours. The foldable container structure allows for efficient transportation, reducing logistics costs by up to 50% compared to traditional prefabricated modules.
Customization Options
We understand that wholesale customers serve different markets. Therefore, we offer flexible OEM/ODM services, with customizations covering layout design, dimensions, exterior finishes, interior finishes, windows, and electrical systems. This ensures our homes meet your specific regional and business needs.

China's one-stop container house manufacturer
Whether it's product consultation, solution customization, or technical support, our professional team is always ready to serve you.
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