Prefabricated House Specifications

The specifications of prefabricated houses vary depending on design requirements and functional needs, mainly including dimensions, component specifications, and allowable deviations.

I. Common Dimensions of Prefabricated Cement Houses

1. Standard Dimensions
   • 3m × 6m: Suitable for small temporary structures such as construction site offices and duty rooms, meeting short-term usage needs.
   • 4m × 8m: Often used for rural self-built houses, storage facilities, or small shops, balancing living and storage functions.
   • 5m × 10m: Ideal for family homes, community centers, or commercial buildings, offering more spacious and comprehensive functionality.
2. Custom Dimensions
   • Width: Typically ranges from 3m to 4m, adjustable in 10cm increments (e.g., 3.1m, 3.2m); some requirements can exceed conventional limits, such as 7.2m or 7.6m.
   • Length: Flexibly adjusted according to site conditions, such as 6.6m (outer diameter), with some projects supporting longer custom dimensions.
   • Other Parameters: Height and number of floors can also be customized, such as single-story or double-story structures, to meet diverse needs.

II. Common Specifications of Prefabricated Concrete Houses

1. Single-Story Prefabricated Concrete Houses
   • Common dimensions include 6m × 3m, 8m × 3m, 10m × 3m, and 12m × 3m, suitable for low-rise buildings such as temporary housing or small public facilities.
2. Multi-Story Prefabricated Concrete Houses
   • Common dimensions such as 7.2m × 3.3m × 3.0m and 8.1m × 3.3m × 3.0m, suitable for multi-story residential or office buildings, offering higher structural stability.

III. Component Dimensions of Prefabricated Concrete Houses

1. Prefabricated Concrete Panels
   • Span: The longest residential panel is 4.2m, with customization required for longer spans.
   • Width: Primarily 500mm and 600mm, adapting to different architectural layouts.
   • Thickness: Commonly 120mm and 150mm, affecting load-bearing capacity and sound insulation.
2. Other Components
   • Wall Thickness: ≥150mm, ensuring structural strength.
   • Eave Length: 0 to 1200mm, adjustable according to drainage or shading needs.

IV. Allowable Deviations in Dimensions

1. Length Deviation: ±10mm for lengths ≤6000mm, ±15mm for lengths >6000mm.
2. Width Deviation: ±25mm for widths ≤6000mm, ±20mm for widths >6000mm.
3. Height Deviation: ±15mm for heights ≤6000mm or >6000mm.
4. Wall Thickness Deviation: -2mm to +5mm, ensuring structural safety.
5. Flatness: Lateral bending and warping ≤20mm, ensuring appearance and functionality.
6. End Face Tilt: ≤5mm, avoiding installation errors.
7. Door and Window Position Deviation: ±15mm, ensuring smooth opening and closing.
8. Embedded Part Position Deviation: ±5mm, ensuring equipment installation accuracy.
9. Lifting Ring Exposed Height Deviation: ±10mm, facilitating construction operations.
10. Protective Layer Thickness Deviation: -2mm to +5mm, preventing steel reinforcement corrosion.