Restrooms, trailers and the ratio per guest
Restroom provision is the least romantic decision in wedding planning and the one guests remember most accurately.
Almost every complaint a guest makes about a rural wedding traces back to restrooms: not enough of them, too far away, too dark, or nowhere near accessible. It is a solvable problem, and solving it costs a fraction of what the flowers do.
Three kinds of provision
Permanent restrooms in or beside the building. The best outcome, and the reason purpose-built venues charge more. Check that the count is adequate for your guest number rather than for the building's licence, and that they are plumbed to a system that can take a four-hour surge — see water and septic.
A restroom trailer. A towed unit with flushing fixtures, sinks with running water, lighting, climate control and interior finishes. It is the option that most closely reads as a real restroom, and for an evening event it is usually the right answer.
Single portable units. Individual cabins, delivered on a flatbed. Cheap, quick, and honest about what they are. Acceptable for a daytime or informal event, and increasingly hard to defend for an evening reception with alcohol.
The ratio
The portable sanitation trade works to a rule of thumb rather than a legal ratio for private events: roughly one unit per fifty guests for an event of about four hours, with more units needed as the event runs longer. Alcohol pushes the requirement up sharply, and a wedding is close to the worst case, because everyone arrives together, drinks steadily and queues in the same fifteen-minute windows around the ceremony and the meal.
Treat the rule of thumb as a floor rather than a target. Two adjustments are worth making every time. Add capacity for length: a wedding that runs from an afternoon ceremony to a midnight close is not a four-hour event. And add capacity for the peak rather than the average, because the queue that matters forms in the ten minutes after the ceremony ends.
Ask the rental company to size it. Give them the guest count, the running time, whether alcohol is served, and whether there is a meal. They do this every week and they have no reason to undersell you.
What a trailer needs from the site
A trailer is not a box you leave in a corner. It has requirements, and discovering them on the delivery day is expensive.
- Level ground. Trailers need to sit close to level for the fixtures to drain and the doors to swing. Sloping pasture needs blocking or a different position.
- Access for a truck. The unit is towed in and towed out, which means a route wide enough, firm enough and with turning space at the end. On soft ground after rain, this is the constraint that fails — see ground, parking and access.
- Power. Lighting, water pump, heating and air conditioning all draw from somewhere. Either it plugs into the building or it goes on the generator, and either way it belongs on the load list.
- Water. Some trailers are self-contained with a fresh tank; others need a hose connection. A well that is fine for a farmhouse may not enjoy a wedding.
- Waste. The unit holds what it collects, and the tank has a finite size. For a long event with a high count, ask whether servicing during the event is included.
Placement
Put them near enough that nobody has to cross a dark field, far enough that the queue is not part of the reception, and on a route that works in the dark and in the rain.
Three things make the difference between a trailer that works and one that does not. Light the path, not just the unit: a lit doorway at the end of an unlit walk is worse than useless because it tells people the route is fine. Give the doors a firm approach — matting or a hard surface, because the strip of ground directly outside a restroom takes more footfall than anywhere else on the site and turns to mud first. And put them upwind of the dining area if the site has a prevailing direction, which any farmer will know without hesitating.
Accessibility
At least one unit must be genuinely usable by a wheelchair user, and genuinely means the whole journey: a firm level route from where guests are, a door that opens wide enough, space to turn inside, and grab rails. An accessible cabin at the end of forty metres of grass is not accessible. This is part of a wider question covered in accessibility on uneven ground.
If any guest has specific needs, ask them directly what works rather than guessing. People who navigate this daily will give you a precise answer in one sentence.
Servicing and the day after
Confirm who delivers and when, who positions the unit, who connects water and power, who services it if servicing is needed, and when it is collected. Collection matters more than it sounds: a trailer left on a working farm blocks a gate, and a venue that has to chase a rental company on the Monday will remember it.
Ask for the delivery to happen the day before rather than on the morning. Every rural venue has a story about a unit that arrived four hours late, and the day before costs almost nothing.
The question to ask on the tour
Ask what the venue does about restrooms for an evening event with your guest count, and listen for whether the answer is specific. A venue that says "we usually recommend a trailer, and there is a hard standing over there for it" has done this. A venue that says "people manage" has not.
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