Cost Composition Ratio of Prefabricated Houses
The cost composition ratio of prefabricated houses varies depending on factors such as house type and region. Currently, there is no unified fixed ratio, but it is clear that the costs mainly cover materials, production, transportation, installation, design, and technical services.
Material Costs: These account for a significant proportion of the cost of prefabricated houses, encompassing a variety of materials such as steel, concrete, insulation materials, doors, and windows. Taking Jiyang prefabricated buildings as an example, there are significant price differences among various prefabricated components. For instance, prefabricated floor slabs cost approximately 800 - 1200 yuan/㎡, while prefabricated beams and columns cost about 1500 - 2000 yuan/㎡. The material costs of these components are an important part of the overall construction cost.
Production Costs: These are closely related to factors such as production processes, equipment investment, and production efficiency. Advanced production processes and efficient production equipment help reduce the production cost per unit of product. Improving production efficiency can also distribute fixed costs to a certain extent, thereby affecting the overall cost of prefabricated houses.
Transportation Costs: These are determined by the volume, weight, and transportation distance of the prefabricated houses. In Jiyang prefabricated buildings, transportation fees are calculated based on distance. Within 10 kilometers, it is approximately 5 - 10 yuan/㎡, and for distances exceeding 10 kilometers, an additional 2 yuan/㎡ is charged for each extra kilometer. The longer the transportation distance, the higher the transportation cost, and the greater the impact on the total cost.
Installation Costs: These are related to factors such as the proficiency of the construction team, installation efficiency, and installation quality. In Jiyang prefabricated buildings, the installation fee for low-rise residential buildings is approximately 150 - 200 yuan/㎡, while for high-rise prefabricated buildings, it is about 250 - 350 yuan/㎡. An experienced construction team with high installation efficiency can reduce installation costs.
Design and Technical Service Fees: These include design fees and on-site installation technical service fees. In Jiyang prefabricated buildings, the design fee is calculated based on the building area, approximately 30 - 80 yuan/㎡ (including BIM modeling and detailed design). The on-site installation technical service fee is about 50 - 120 yuan/㎡ (including construction plans and on-site coordination). In the Argentine prefabricated housing market, transportation and assembly costs typically account for 5% to 12% of the total project cost, while foundation preparation costs can vary from 1 million to 5 million pesos depending on soil conditions and plot size.
