Back to blog
Article

What is the Size of Container House Windows

Admin September 15, 2026

There is no unified standard for the window sizes of container houses. Common specifications are influenced by the type of house, its purpose, and customization needs, resulting in a wide range of sizes.

I. Standard Container House Window Sizes
For houses converted from international standard containers (such as 20-foot and 40-foot cargo containers), window sizes are typically related to the original container structure. For example, the internal dimensions of a 20-foot container are 5898×2352×2390 millimeters, while those of a 40-foot container are 12024×2352×2390 millimeters. Windows in such houses are often cut into the side walls of the containers, with common widths ranging from 600 to 1200 millimeters and heights from 800 to 1500 millimeters, depending on design requirements. For instance, some standard container houses use single-leaf sliding windows with dimensions of approximately 800×1200 millimeters to balance daylighting and structural strength.

II. Customized Container House Window Sizes
Non-standard container houses (such as those used as construction site dormitories or office spaces) have more flexible window sizes that can be adjusted according to function. For example:

  1. Small Container Houses (e.g., 3×3×2.8 meters): Window widths are typically 600-800 millimeters, with heights of 800-1000 millimeters, suitable for single occupancy or small office spaces.
  2. Medium-sized Container Houses (e.g., 6×3×2.8 meters): Window widths can be extended to 1000-1200 millimeters, with heights of 1200-1500 millimeters, to enhance ventilation and daylighting.
  3. Special-purpose Houses (e.g., glass curtain wall sunrooms): Window sizes may be larger, featuring full glass curtain wall designs with widths of 2-3 meters and heights matching the floor height of the house (e.g., 2.8 meters) to maximize natural light intake.

III. Factors Influencing Window Size Customization
Window sizes are influenced by the following factors:

  1. Functional Requirements: Residential houses require larger windows for improved comfort, while storage houses may have smaller windows for enhanced security.
  2. Structural Limitations: The thickness of container steel, load-bearing capacity, and cutting techniques affect the maximum window size.
  3. Material Selection: Materials such as insulated glass and thermal break aluminum can support larger window designs while ensuring thermal insulation performance.
  4. Installation Method: Different types of windows, such as sliding windows and top-hung windows, have varying size requirements. For example, sliding windows typically have widths not exceeding 1200 millimeters.