Composition of Container Houses

Container houses are mainly composed of standard steel structural frames, container body panels, connecting devices, and interior decoration and supporting facilities.

I. Standard Steel Structural Frames The core structure of container houses originates from the standardized design of freight containers, utilizing section steel welded frames. The thickness of the steel in the main beams and columns directly affects the load-bearing capacity. National standard container frames must meet requirements for pressure resistance, wind resistance, and corrosion resistance, and are typically subjected to overall galvanizing or anti-corrosion spraying treatments to ensure safety during lifting, stacking, and transportation. For example, the frame dimensions of a 20-foot standard container are 2.4×2.6×6 meters, while those of a 40-foot standard container are 2.4×2.9×12 meters. Their load-bearing capacity far exceeds that of ordinary prefabricated temporary buildings, with a service life of over 20 years.

II. Container Body Panels Walls are usually made of color-steel sandwich panels filled with insulation materials (such as polyurethane), balancing lightweight construction with thermal insulation performance. Roof and floor panels need to be waterproof and rust-resistant. Some products use hot-dip galvanized cold-formed steel frames paired with fire-resistant polyurethane sandwich panels to enhance insulation and fire resistance. Panels are assembled using movable connecting devices (such as hinges and bolts) for easy and rapid disassembly and reassembly.

III. Connecting Devices The modular nature of container houses relies on connecting devices to enable multi-container combinations. Each panel (front, back, left, right, top, and bottom) within a single container is assembled using movable connecting devices, and multiple containers can be interconnected on all sides to form larger spaces. For example, partitions in combined houses can be removed to expand interior space; windows and doors are installed on the outer panels to meet lighting and ventilation needs.

IV. Interior Decoration and Supporting Facilities Depending on their intended use, container houses can be equipped with electrical systems, lighting, air conditioning, plumbing, and other facilities, along with flooring and installed windows and doors, transforming them into comfortable living or working spaces. For example, construction site dormitories may be furnished with simple furniture, while homestays or office areas may undergo elaborate decoration to enhance aesthetics and functionality.