Single toilet cabins or a toilet block?
| Option | What it is | Best for |
|---|---|---|
| Single or twin toilet cabin | One or two WCs with a basin, light and exhaust, in a compact cabin | Gates, security posts, small sites and remote crews |
| Multi-seat toilet block | A row of WC cubicles, urinals and a common wash area in one cabin or panel building | Site workforces, factory shifts and labour camps |
| Toilet-cum-bath block | WCs and bathing cubicles together, with heavy-duty drainage | Labour camps and residential crews |
| Cabin with attached toilet | A site office, guard cabin or supervisor room with its own WC and basin | Staff who should not share the workforce block |
Many sites use a mix: an attached toilet in the site office, a twin cabin at the gate and one or more toilet blocks near the work front or camp. Spreading facilities this way shortens walking distances and avoids queues at shift change.
How many seats
The number of WCs and urinals follows the headcount and the rules or client specification that apply to your project. Labour laws and client HSE manuals commonly set seats in proportion to the number of workers, separately for men and women; factories also follow the rules for their state and industry. Take the ratio from the current document rather than from a past project, and plan for the peak workforce.
- —Count peak headcount by shift, and the number of women workers separately.
- —Allow for shift change and lunch, when most people use the block at once.
- —Add bathing cubicles where workers live on site, and wash areas for clothes.
- —Include staff, drivers and visitors who will use the same block.
Indian or western WC, urinals and basins
Indian (squatting) WCs are widely preferred on construction sites and in labour camps: many workers are used to them, and they stand up to heavy use. Western WCs suit site offices, supervisors, visitors and anyone with limited mobility. A block can mix both, with a western cubicle at the end of a row of Indian ones.
- —Urinals in the gents' side reduce queues for WC cubicles and keep cubicles cleaner.
- —Washbasins near the exit, with a mirror and a soap point, and a separate hand-wash station where food is served nearby.
- —Health faucets or water taps in each cubicle, as Indian users expect.
- —Hardwearing fittings and concealed or protected pipework where the block will see rough use.
Ladies' and gents' sides
Where women work or live on site, provide a ladies' side with its own entry, screened from the gents' side and from the main path, with good lighting outside at night and a bin in every cubicle. A wall between the two sides, rather than a partition, gives privacy and acoustic separation. Mark the entries clearly in both English and the local language.
Water, drainage and the septic tank
We complete the internal plumbing in the factory and mark the water inlet and the drainage outlets, so the site team connects to known points. A roof-mounted or separate stand-mounted water tank feeds the block; agree at design which one, because a full tank on the roof is a load the frame must be designed to carry.
- —The septic tank, soak pit or sewer connection is built by the buyer or the site contractor to local norms.
- —Keep the drain run from the block to the tank short, with enough fall and an inspection chamber.
- —Raise the block on a plinth so drain outlets sit above the ground and water drains away from the base.
- —Plan a separate drain for bathing and washing water where local rules ask for it.
Ventilation, light and finishes
- —Exhaust fans and high-level louvres in every block, so it stays fresh through the day.
- —Frosted or translucent windows for daylight with privacy.
- —Smooth, water-resistant wall linings and sloped floors to floor drains, so the block can be washed down.
- —Lights inside and outside the entries, on a circuit that stays on at night.
Placement on site
Place toilet blocks close enough to the work front, camp or factory floor that people use them, but downwind and set apart from kitchens, canteens and drinking water points. Keep the block near the septic tank or sewer line to shorten drains, on firm, level ground that a truck and crane can reach on delivery. In a labour camp, light the path between the sleeping blocks and the toilets.
Cleaning and maintenance
A toilet block is only as good as its cleaning routine. Decide before it arrives who cleans it, how often, where the cleaning materials are stored and who fixes a leaking tap or a blocked drain. A small store or cleaner's cupboard in the block makes that easier.
- —Wash down floors and walls daily, and check drains, flush valves and taps weekly.
- —Empty and maintain the septic tank or soak pit as the local norm and use require.
- —Touch up paint on exposed steel and check door closers and hinges between projects.
Share the headcount, the men and women split, the site plan and any client specification, and we can propose the mix of toilet cabins and blocks to build.