How to Build a Container House

The construction of a container house requires full-process control from purchasing, design, construction to maintenance. The specific steps are as follows:

1. Purchasing Stage

• Structural Type Selection: Prefer welded integral containers (strong resistance to deformation, suitable for frequent movement) or bolt-connected assembled containers (flexible, but need to check the tightness of the joints).
• Steel and Coating: It is recommended that the wall thickness of the columns and bottom beams be 1.5-3 millimeters. The thicker the wall thickness, the stronger the load-bearing capacity. Choose hot-dip galvanizing for the coating (the anti-corrosion lifespan is longer than that of cold-dip galvanizing), especially suitable for areas with large temperature differences and high humidity.
• Product Type Matching:
  • Temporary construction sites: Choose packing-box units (fire-resistant polyurethane sandwich panels, can be stacked in multiple layers);
  • Self-built houses/homestays: Choose light steel frame houses (customizable appearance, filled with insulation materials);
  • Sentry boxes/public toilets: Choose functional supporting houses (flexible sizes, support customization of irregular shapes).

2. Design Stage

• Spatial Layout:
  • Splicing and combination: 2-3 containers can be expanded to create functional areas such as living rooms, bedrooms, and bathrooms (for example, two containers can be connected to form a flat floor of about 100 square meters);
  • Split-level design: Stacking up and down improves ventilation and lighting, and leaves a courtyard or aisle on the ground floor;
  • Small-apartment optimization: Use folding beds and integrated cabinets to improve space utilization.
• Lighting and Insulation:
  • Lighting: Install large floor-to-ceiling windows, roof skylights, or glass partitions;
  • Insulation: Install internal insulation layers on the walls/roof and choose triple-glazed windows (better heat insulation than red brick walls);
  • Sunshade: Set up roof eaves or terrace sunshades.
• Facade Beautification: Treat the facade with paint spraying, theme spray painting, hanging panels, or glass curtain walls to get rid of the industrial feel.

3. Construction Stage

• Ground Treatment:
  • Long-term use: Pour concrete strip foundations (width of 30-50 centimeters, depth determined according to the frozen soil layer, top surface horizontal error ≤ 5 millimeters);
  • Short-term use: Use prefabricated concrete blocks or steel pads (spacing ≤ 2 meters, lay a gravel leveling layer below).
• Lifting and Positioning:
  • Use steel wire ropes with sufficient load-bearing capacity to ensure that all lifting points are under synchronous force;
  • After the container body is in place, check the fit between the bottom beam and the foundation. If there is local suspension, use thin steel sheets to pad it solidly, and the levelness error ≤ 2 millimeters per meter.
• Wind and Earthquake Resistance: For outdoor long-term use scenarios, steel frames are required to reinforce the corners, and concrete piers are made at the bottom.

4. Post-construction Maintenance

• Rust and Corrosion Prevention:
  • During the construction stage: After grinding all the cuts, apply epoxy primer + topcoat;
  • Check the welds, corners, and other parts every year, and immediately repaint if rust spots are found;
  • Repainting cycle: 8-12 years in inland dry areas, 7-10 years in southern humid areas, and 3-5 years in coastal areas.
• Waterproof Sealing: Replace the sealant at the joints around doors and windows and the container body every 5-7 years, and clean the leaves on the roof to avoid water accumulation.
• Condensation Prevention: Reduce the temperature difference through internal insulation layers and ventilation design to avoid internal dripping.