How Thick Are Prefabricated House Finished Products?

The thickness of prefabricated house finished products varies depending on the specific components and their intended uses, commonly ranging from 100mm to 300mm. The following provides an explanation based on two typical components: prefabricated floor slabs and cement prefabricated panel walls.

Thickness of Prefabricated Floor Slabs
In residential buildings, the typical thickness range for prefabricated floor slabs is from 100mm to 200mm, with 120mm being the most widely used specification. This thickness meets the load-bearing requirements for daily living while balancing economy and construction convenience. If water pipes or electrical wires need to be embedded within the floor slab, the thickness must be increased to at least 150mm to ensure space for pipeline installation and structural safety. For example, in areas requiring embedded pipelines, such as kitchens or bathrooms, a 150mm floor slab thickness prevents structural damage from later grooving. In industrial buildings, due to heavier equipment loads or special functional requirements, the thickness of prefabricated floor slabs may reach 200mm to 300mm. For instance, floor slabs in heavy machinery production workshops or storage areas need increased thickness to enhance load-bearing capacity and prevent deformation or cracking.

Thickness of Cement Prefabricated Panel Walls
The thickness of cement prefabricated panel walls typically ranges from 120mm to 150mm. This range is primarily based on a comprehensive consideration of thermal insulation, sound insulation, and structural stability. Wall panels that are 120mm thick are mostly used for non-load-bearing partitions, such as indoor zoning or lightweight partitions, effectively dividing spaces while reducing material usage. Wall panels that are 150mm thick are commonly used for load-bearing walls or areas requiring higher sound insulation and fire resistance, such as exterior walls of residential buildings or stairwell walls. Additionally, some wall panels for special purposes (such as blast-resistant walls or soundproof walls) may further enhance performance by increasing thickness or adopting composite structures, but these cases fall under customized designs and are not included in the conventional thickness range.

Causes of Thickness Differences
The differences in the thickness of prefabricated house components are primarily determined by functional requirements, load conditions, and material properties. Residential buildings prioritize space utilization and cost balance, resulting in relatively thinner floor slabs and wall panels; industrial buildings, on the other hand, need to meet load-bearing and durability requirements first, leading to significantly increased thickness. Additionally, embedded pipelines, sound insulation, and fire resistance requirements also drive thickness adjustments. During the design process, specific parameters must be determined through structural calculations to ensure a balance between safety and economy.