Container House Size Standard Diagram
The common size standards for container houses are mainly divided into international standard specifications, domestic general specifications, and customized specifications, as detailed below:

I. International Standard Specifications
International standard containers primarily come in 20-foot and 40-foot sizes, with the following internal net dimensions:
- 20-foot Standard Container: Length 5898mm, width 2352mm, height 2390mm, with a load capacity of approximately 25 tons. It is suitable for single-person offices, dormitories, or small shops.
- 40-foot Standard Container: Length 12024mm, width 2352mm, height 2390mm, with a load capacity of approximately 45 tons. It can be divided into multi-functional spaces or multi-person dormitories.
- 40-foot High Cube Container: Length 12024mm, width 2352mm, height 2680mm, with an increased internal net height of 2655mm. It is suitable for exhibition halls or housing with height requirements.
Additionally, international standards include special specifications such as 45-foot high cube containers and 20-foot open-top containers, but these are less commonly used.
II. Domestic General Specifications
Domestic container house sizes are more aligned with the needs of civil construction, with common specifications including:
- Length 6m, Width 3m, Height 2.9m: This meets the common bay dimensions used in domestic engineering projects, offering high spatial comfort and is widely used in office and accommodation settings.
- Length 6m, Width 2.4m, Height 2.9m: This matches the width of a 20-foot container, facilitating maritime transport and is often used in international engineering projects.
III. Customized Specifications
Container houses can be flexibly adjusted in size according to actual needs:
- Length: Can be customized to 3m, 6m, 8m, 12m, etc., and even achieve larger spans through splicing (e.g., a duplex structure measuring 11.8m×6.75m×2.8m).
- Width: Options include 2.5m, 2.55m, 3m, 4m, etc., to accommodate different functional requirements.
- Height: Options include 2.6m, 2.7m, 2.8m, 2.9m, etc., with some projects achieving duplex designs by stacking containers.
IV. Design Considerations
The size design of container houses must comprehensively consider transportation limitations, functional requirements, and space utilization. For example, international projects prioritize 20-foot or 40-foot containers that meet maritime transport standards; domestic projects focus more on the comfort of bay dimensions. Additionally, by splicing, stacking, or adaptively combining containers, the spatial limitations of a single container can be overcome to meet the needs of large-span sports buildings or large-scale projects composed of hundreds of containers.




