Assembled Container House with Toilet

When assembling a container house with a toilet, it is necessary to comprehensively consider structural design, functional configuration, material selection, and compliance. The specific steps and key points are as follows:

I. Basic Structure Selection and Modification Container houses use standard shipping containers as modular units, with common sizes being 20 feet (6 meters long, 2.4 meters wide, 2.6 meters high) or 40 feet (12 meters long, 2.4 meters wide, 2.6 meters high). If a toilet is required, it is advisable to choose a corrosion-resistant, well-sealed steel container and apply anti-rust treatment (such as spraying epoxy zinc-rich paint) and thermal insulation layers (such as double-layer rock wool insulation). During modification, space for the toilet should be reserved, typically accounting for 1/4 to 1/3 of the total container area. For example, a 6-meter container can be divided into 4 meters for living space and 2 meters for the toilet area.

II. Toilet Functional System Design

1. Drainage System: Install an S-shaped drain pipe to prevent odor backflow and set up a waterproof tray to catch leaks. If used in rural areas or areas without municipal sewage networks, a septic tank (such as a prefabricated polypropylene plastic septic tank or fiberglass septic tank) should be provided, with capacity selected based on the number of users (e.g., 2-3 cubic meters recommended for a 3-5 person household).
2. Water Supply System: Connect to municipal water supply or use a combination of solar water heater + water storage tank, with a recommended storage tank capacity of no less than 200 liters to meet daily washing needs.
3. Ventilation System: The toilet should be equipped with an exhaust fan (recommended power of 50-100W) or double-glazed sliding windows to ensure air circulation and reduce mosquito entry.

III. Interior Decoration and Material Selection

1. Walls and Floors: It is recommended to use wood veneer panels or PVC trim panels to cover the steel plates for aesthetics and moisture resistance. The floor should be laid with waterproof tiles or non-slip flooring, with a 2%-3% slope for drainage.
2. Sanitary Fixtures: Choose a wall-mounted toilet to save space, paired with a thermostatic showerhead for an enhanced user experience. The sink can be a pedestal basin or an integrated sink cabinet, with materials recommended as ceramic or stainless steel.
3. Electrical Safety: The toilet should have a separate leakage protection switch, with lighting fixtures rated IP44 or higher for water resistance, and sockets recommended to be installed at a height of over 1.5 meters from the floor.

IV. Compliance and Expandability

1. Compliance: Before modification, confirm the local planning department's requirements for temporary structures (such as height, floor area, and service life) and complete relevant approval procedures.
2. Expandability: If additional kitchen or bedroom modules are needed, bolt connection holes can be reserved for easy later assembly. The roof is recommended to be designed as removable for easy installation of solar panels or maintenance.

V. Cost Reference The price of a basic container house (including toilet) varies greatly depending on the configuration: a simple model (with basic drainage and ordinary sanitary fixtures) costs about 8,000-15,000 yuan; a mid-to-high-end model (including a septic tank, solar water heating, and fine decoration) costs about 25,000-40,000 yuan. The cost of modifying a used container can be reduced by 30%-50%, but structural integrity should be carefully inspected.