Custom Size Standards for Prefabricated Houses
The custom size standards for prefabricated houses vary depending on the type of house, as detailed below:

Prefabricated Concrete Houses The width typically ranges from 3 meters to 4 meters, with 10 centimeters as a size unit (e.g., 3.1 meters, 3.2 meters, etc.). Some requirements can exceed the conventional range, such as widths of 7.2 meters or 7.6 meters. The length can be flexibly adjusted according to site conditions, such as 6.6 meters (outer diameter), and some projects even support customization of longer dimensions. Additionally, parameters such as height and number of floors can also be customized, such as single-story or double-story structures. During actual customization, factors such as transportation, installation, and foundation bearing capacity must be comprehensively considered to ensure that the dimensions meet usage requirements while complying with safety standards.
Single-Story Prefabricated Concrete Houses The common maximum width is 12 meters, with a length range from 3 meters to longer dimensions customized according to needs. These houses are typically used in scenarios requiring large spaces, such as temporary offices and warehousing. When customizing, it is important to note that if the span exceeds conventional dimensions, special structural design is required to enhance stability, and the foundation bearing capacity must be evaluated to ensure it meets requirements.
Double-Story Prefabricated Concrete Houses The common maximum width is 12 meters, with a typical length of 5 meters, which can also be customized according to needs. For double-story structures, special attention must be paid to the load distribution between floors and overall stability. During customization, it is essential to ensure that the dimensions of the upper and lower floors match and optimize the structural design to lower the center of gravity and improve wind and earthquake resistance.
Three-Story Prefabricated Concrete Houses The common maximum width is 12 meters, with a typical length of 7 meters, and customization is also supported according to specific needs. Three-story houses have higher requirements for foundation bearing capacity, and professional geological surveys must be conducted during customization to ensure that the foundation strength meets requirements. Additionally, the structural layout must be optimized to avoid insufficient lateral stiffness due to the increase in the number of floors, which could affect overall safety.
General Considerations Regardless of the type of prefabricated house, the following principles must be followed during customization:
- Transportation Restrictions: When the width exceeds conventional dimensions (e.g., more than 4 meters), transportation routes must be planned in advance to avoid difficulties due to road width, bridge height restrictions, and other factors.
- Installation Conditions: When the length is too long or the number of floors is too high, the working space and lifting capacity of on-site installation equipment (such as cranes) must be evaluated.
- Safety Standards: Houses with spans exceeding conventional dimensions require special customization and structural calculations by professional institutions to ensure compliance with building safety standards.




