Technical Specification for Prefabricated House Assembly

Technical specifications for prefabricated house assembly vary across different regions. Here are introductions to relevant specifications in some regions:

Shandong Province:

• Technical Guidelines for the Construction of Prefabricated Rural Houses in Shandong Province: Implemented from July 1, 2026. It defines prefabricated rural houses as rural residential houses assembled on-site from components prefabricated in whole or in part in factories. Construction follows principles such as modern functionality and structural safety. The structural system includes various types such as prefabricated concrete shear wall structural systems, and provides detailed design and construction specifications. In terms of materials, it advocates adapting to local conditions and using locally available resources, selecting green, economical, or recyclable building materials, and prohibiting high-energy-consuming and excessively polluting materials. Design should respect farmers' needs, reflect regional characteristics, and consider aging-friendly design. Construction should be organized by professional teams or trained rural individual builders, and a construction organization design and plan should be formulated.
• Specification for the Fabrication and Acceptance of Prefabricated Components for Monolithic Precast Concrete Structural Engineering (db37/t 5020 - 2014 j 12810 - 2014): Released on September 16, 2014, and implemented from October 1, 2014. It covers general provisions, terms, basic requirements, materials, fabrication of prefabricated components, quality inspection and acceptance, product identification, storage, and transportation, systematically regulating quality control and inspection and acceptance throughout the production process of prefabricated components. It serves as a basis and technical standard for relevant units in Shandong Province to control product and engineering quality.

Shaanxi Province:

• Technical Specification for Low- and Multi-Story New Prefabricated Concrete Residential Buildings (Draft for Comments): The main technical content includes 11 chapters: general provisions, terms and symbols, basic requirements, materials, architectural and component design, structural and envelope system design, equipment and pipeline system design, interior decoration system design, production and transportation, construction and installation, and quality acceptance. It comprehensively regulates all aspects from design to acceptance of low- and multi-story new prefabricated concrete residential buildings.

Beijing City:

• Technical Specification for Interior Prefabricated Decoration in Buildings (db11/t 1553 - 2025): Released on December 31, 2025, and implemented from April 1, 2026. After revision, its scope of application has been expanded from residential buildings to public buildings and other fields. It emphasizes productization, systematic integration, and multi-disciplinary collaboration, taking into account the sustainability and environmental protection throughout the life cycle. It supplements open finish processes, adds chapters on components and selection requirements, and also includes prefabricated decoration components such as integrated partition walls.