Dimensions of Mobile Toilets with Three Stations
The common size range for mobile toilets with three stations (three toilet compartments) is as follows: length 3m to 6m, width 1.5m to 2.5m, and usable area approximately 4.5㎡ to 7㎡, with specific adjustments required based on the design type and functional needs.

I. Basic Size Calculation Logic
The size of a three-station mobile toilet is typically calculated by adding up the sizes of individual toilet compartments. For each additional toilet compartment, the usable area increases by approximately 1.5㎡ to 2㎡. Taking the standard size of a single toilet compartment as 1.5㎡ to 2㎡ as an example, the basic usable area for three compartments is 4.5㎡ to 6㎡. If public areas such as corridors and ventilation are considered, the total area may expand to 6㎡ to 7㎡.
II. Typical Ranges for Length and Width
- Length: The overall length is mostly between 3m and 6m. For example, a compact design may adopt a length of 3m (approximately 1m per toilet compartment, including partition structures), while a model with more complete functions may extend to 5m to 6m to accommodate independent doors, sinks, or barrier-free facilities.
- Width: The width is usually between 1.5m and 2.5m. A width of 1.5m is the basic passage width, while 2.5m can support a double-row toilet compartment layout or additional storage space. Some specially customized models (such as those for the Kaifeng municipal project) can have a width of more than 3m to enhance user comfort.
III. Practical Case References
- Standard Model: A certain model of mobile public toilet has external dimensions of 5850mm (5.85m) in length × 2650mm (2.65m) in width × 2750mm in height, including multiple toilet compartments, which can serve as a reference for three-station designs. Its length and width are at the upper limit of the typical range, suitable for high-traffic scenarios.
- Customized Model: The specially customized mobile toilet for the Kaifeng municipal project has dimensions of 3m × 4m or more, expanding the area to meet the needs of multiple people using it simultaneously, such as adding barrier-free toilet compartments or a management room.
IV. Design Influencing Factors
- Functional Configuration: If sinks, management rooms, or barrier-free facilities need to be integrated, the size needs to be expanded accordingly. For example, a barrier-free toilet compartment requires a reserved space of more than 1.5m × 1.5m.
- Transportation Limitations: Modular-designed mobile toilets need to consider the width (usually ≤2.5m) and height (≤4m) limitations of road transportation to avoid increased costs due to over-limit transportation.
- Usage Scenarios: Different scenarios such as scenic spots and construction sites have significantly different size requirements. Scenic spots may prioritize compact designs to save space, while construction sites may focus more on durability and capacity.
It is recommended to choose a standard model or customized design based on specific needs and prioritize referring to the technical parameters of the manufacturer to ensure compliance.
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