Container House Specifications and Standards

The common specifications of container houses are based on standard container sizes, primarily including two standard sizes: 20-foot and 40-foot. Additionally, there are various variants and custom sizes, which can be categorized as follows:

I. Standard Specifications

1. 20-foot Container:
   • External Dimensions: Length 6.058 meters, Width 2.438 meters, Height 2.591 meters (international standard);
   • Internal Dimensions: Length 5.898 meters, Width 2.352 meters, Height 2.393 meters;
   • Area: Approximately 14 square meters, suitable for single-room offices, small dormitories, or temporary command centers.
2. 40-foot Container:
   • External Dimensions: Length 12.192 meters, Width 2.438 meters, Height 2.591 meters (international standard);
   • Internal Dimensions: Length 12.032 meters, Width 2.352 meters, Height 2.393 meters;
   • Area: Approximately 28 square meters, can be expanded into multiple offices or employee apartments, supporting splicing and combination.

II. Variants and Extended Specifications

1. Non-standard Sizes:
   • Common domestic specifications: Length 6 meters, Width 3 meters, Height 2.8-2.9 meters, area 18 square meters, widely used for temporary offices and accommodations on construction sites;
   • Short container: Length 3 meters, Width 3 meters, Height 2.8 meters, area 9 square meters, often used for security booths and small warehouses;
   • Long container: Length 7 meters, Width 3 meters, Height 2.8 meters, area 21 square meters, commonly used as two-story mobile homes with balconies and corridors.
2. Expandable Designs:
   • Side or end expansion modules can be added to standard containers, increasing usable area by 30%-50% upon deployment, meeting the space requirements for long-term on-site offices;
   • Apple Pod Containers: Foreign trade sizes range from 5.8 meters × 2.2 meters to 11.5 meters × 2.2 meters, supporting modular assembly and adapting to spaces from single-room guesthouses to multi-functional complexes.

III. Customized Specifications According to user needs, dimensions can be flexibly adjusted, for example:

• Length options include 3 meters, 6 meters, 9 meters, and 12 meters, with a fixed width of 3 meters, supporting multiple arrangements and stacking combinations;
• Special functional modules (such as shower rooms, restrooms, and conference rooms) can be freely combined to meet the needs of commercial exhibitions, educational training, medical facilities, and other scenarios.

IV. Structural and Material Standards

• Main Frame: Constructed using hot-dip galvanized square steel (e.g., 100×100mm, 80×80mm) welding to ensure wind and earthquake resistance (compliant with GB50011-2010 standards);
• Wall Panel Materials: Aluminum-zinc color-coated steel plates combined with rock wool, glass wool, or polyurethane, balancing thermal insulation and fire resistance (fire rating of B1 or above);
• Coating Process: Hot-dip galvanizing provides longer corrosion resistance than cold galvanizing, adapting to environments with significant temperature variations between day and night and humidity changes.