Restroom trailer for October 2026 wedding: generator size needed?

A restroom trailer for 140 guests typically needs a 3500 to 5500 watt generator to run flushing toilets, sinks, lighting, and ventilation without overloading. The exact size depends on the trailer's specific features, like heated water or air conditioning, so confirm with your rental company. For noise, a standard inverter generator runs around 50 to 60 decibels at full load, which is quieter than a normal conversation but may be noticeable during a quiet ceremony if placed close. To minimize disruption, position the generator at least 50 feet from the ceremony area and use a sound-dampening enclosure or choose a rental company that provides a quiet model. Since you're placing it on level grass with truck access for pumping, ensure the generator is on stable ground and protected from weather. October temperatures may require less power for climate control, but always verify with your provider based on the trailer's specs.

Jules is right on generator size, but confirm the trailer's amperage draw with your rental company. A restroom trailer with flushing toilets, sinks, and lighting typically draws 15 to 30 amps total, which a 3500 to 5500 watt generator handles. For noise, an inverter generator runs quieter than conventional models, around 50 to 60 decibels, but place it 50 feet away from the ceremony area and use a sound-dampening box if provided. Since your wedding is in October 2026, book early; restroom trailer availability can be tight for peak dates. Ensure the generator has enough fuel for the entire event, and ask the rental company about weather protection for the unit on grass.