20foot 720mm Prefabricated Expandable Container House

The 20foot 720mm Prefabricated Expandable Container House is an innovative prefabricated building solution that integrates compact transportation, flexible expansion, and premium quality, designed to meet diverse residential, commercial, and emergency needs with its standardized specifications and humanized design. With a 20-foot  basic structure and 720mm standard external dimension, this container house combines the portability of traditional containers with the space flexibility of expandable design, becoming a cost-effective and efficient alternative to conventional construction.

As a core highlight, the expandable design of this container house perfectly solves the contradiction between compact transportation and spacious use. When folded for transportation, it maintains the standard 20-foot container size, which is easy to load, unload and transport globally—even a 40-foot container can carry two sets, greatly reducing transportation costs and improving logistics efficiency. When expanded on-site, it can quickly extend to a spacious usable area, with a typical unfolded size of around 5900×4920×2480mm (customizable according to needs), which can be flexibly configured into 1-2 bedrooms, an open-plan living room, a fully equipped kitchen and a modern bathroom, fully meeting the needs of daily living, temporary office or vacation accommodation.

Quality and durability are fully guaranteed by high-grade materials and rigorous manufacturing standards. The main structure adopts 3mm hot-dip galvanized steel frame of Q235 grade, with 4 reinforced galvanized corner casts, which has excellent load-bearing capacity, corrosion resistance and impact resistance, ensuring a service life of 30-40 years. The wall adopts 720mm standard external configuration matched with 50-75mm rock wool, EPS or PU sandwich panels, which are eco-friendly, fire-retardant (Class A non-flammable) and thermal-insulated, effectively isolating external temperature changes and noise, reducing heating and cooling energy consumption, and creating a comfortable and quiet indoor environment. The floor is paved with 18mm fiber cement board or bamboo board plus 1.8-2mm PVC flooring, which is wear-resistant, waterproof and easy to clean, suitable for long-term use.

The prefabricated production mode ensures the stability and consistency of product quality. All components, including the steel frame, wall panels, doors, windows and internal fittings, are precision-manufactured in a controlled factory environment, minimizing construction errors and material waste compared with on-site construction. The installation process is extremely efficient and convenient—with pre-installed water and electricity pipelines, distribution boxes, LED lights and exhaust fans, the entire set can be assembled on-site in only 4 hours by professional personnel, significantly shortening the construction period and reducing labor costs, making it ideal for temporary housing, disaster relief shelters and construction site dormitories.