How to Calculate Container House Size

The size calculation of container houses is mainly based on their external or internal length, width, and height data. The space size is obtained through the volume formula (length × width × height), and the area is calculated by length × width. Here are the specific classifications and calculation methods:

I. Standard Container House Sizes Standard container houses are modified based on maritime shipping containers. Common sizes are as follows:

1. 20-foot Standard Container (20GP) External dimensions: Length 6.058 meters, width 2.438 meters, height 2.591 meters; Internal dimensions: Length 5.867 meters, width 2.330 meters, height 2.350 meters; Area calculation: Internal length × width = 5.867 × 2.330 ≈ 13.67 square meters; Volume calculation: Internal length × width × height = 5.867 × 2.330 × 2.350 ≈ 32 cubic meters; Usage: Single-person offices, dormitories, shops.

2. 40-foot Standard Container (40GP) External dimensions: Length 12.192 meters, width 2.438 meters, height 2.591 meters; Internal dimensions: Length 11.998 meters, width 2.330 meters, height 2.350 meters; Area calculation: Internal length × width = 11.998 × 2.330 ≈ 27.95 square meters; Volume calculation: Internal length × width × height = 11.998 × 2.330 × 2.350 ≈ 65 cubic meters; Usage: Multi-functional spaces, multi-person dormitories.

3. 40-foot High Cube Container (40HQ) External dimensions: Length 12.192 meters, width 2.438 meters, height 2.896 meters; Internal dimensions: Length 11.998 meters, width 2.330 meters, height 2.655 meters; Area calculation: Internal length × width = 11.998 × 2.330 ≈ 27.95 square meters; Volume calculation: Internal length × width × height = 11.998 × 2.330 × 2.655 ≈ 74 cubic meters; Usage: Exhibition halls and housing with height requirements.

II. Non-standard Custom Container House Sizes Non-standard container houses are flexibly adjusted in size according to customer needs. Common specifications are as follows:

1. Regular Custom Sizes Length 3 meters, width 3 meters, height 2.8 meters, area 9 square meters; Length 6 meters, width 3 meters, height 2.8 meters, area 18 square meters; Length 7 meters, width 3 meters, height 2.8 meters, area 21 square meters (often used for two-story mobile homes).

2. Free Custom Sizes Length options: 3 meters, 6 meters, 8 meters, 12 meters, etc.; Width options: 2.5 meters, 2.55 meters, 3 meters, 4 meters, etc.; Height options: 2.6 meters, 2.7 meters, 2.8 meters, 2.9 meters, etc.; Area and volume need to be calculated according to specific dimensions. For example, a house with a length of 8 meters, width of 4 meters, and height of 2.8 meters has an area of 8 × 4 = 32 square meters and a volume of 8 × 4 × 2.8 = 89.6 cubic meters.

III. Considerations for Size Selection

1. Usage Matching: Choose standard or custom sizes according to the usage scenario (such as office, residence, or storage).
2. Transportation Restrictions: Custom sizes need to consider the width and height restrictions of road transportation.
3. Space Efficiency: Irregularly shaped goods or stacking restrictions may result in the actual usable volume being lower than the theoretical value. A void ratio (usually 80%-95%) needs to be reserved.