Portable sanitation · Sourced through our provider network
Hot showers for crews, response teams, camps and events, sourced from local providers. Shower trailers are a smaller fleet than restroom trailers, so the earlier we have your dates, water source and headcount, the better the odds.
Who rents them
The trailer is the same. What changes is who's using it, for how long, and what the site already has.
| Job | Why showers | Plan for |
|---|---|---|
| Work under a standard that requires showers | An OSHA standard calls for them, so the count follows the rule below. | Shower count by crew and shift, change rooms, towels and soap. |
| Remote crews and work camps | No hotel within reach, or long shifts in heat and dust. | Tanks, a generator and a pump-out schedule. |
| Storm, flood and fire response | Crews and residents without running water. | Fast dates, and no hookups to count on. |
| Festivals, camps and races | Multi-day crowds who stay on site. | Peak morning use and more frequent service. |
| A home without a working bathroom | A remodel or a repair after water damage. | A level spot near a hose bib and an outlet. |
When OSHA requires showers
OSHA's construction sanitation rule doesn't require showers on every jobsite. It sets the count when another standard requires employees to shower, and the general industry rule is worded the same way.1
The count is per sex and per shift, and any fraction rounds up. A shift of 18 men and 4 women needs three showers, not two: two for the men and one for the women.
Shower trailer water calculator
Every gallon that comes out of a showerhead ends up in the waste tank. Enter your crew and the trailer's tank sizes from the quote, and this works out the gallons a day, how long the tanks last and how many showers OSHA would call for.
Why flow rate matters
Federal rules cap showerheads at 2.5 gallons a minute. WaterSense labeled heads use no more than 2.0.23 On a trailer with a fixed waste tank, that gap is about a quarter more showers between pump-outs.
| Showerhead | Gallons a shower | Showers per tank | Showers per tank, compared |
|---|---|---|---|
| 2.5 gpm, federal maximum | 20 | 19 | |
| 2.0 gpm, WaterSense | 16 | 24 | |
| 1.5 gpm, low flow | 12 | 32 |
Showers per tank is the tank divided by gallons a shower, rounded down. Tank size is one manufacturer's three-stall spec.4
What the site needs
Two manufacturer spec sheets for three-stall units show what a provider will ask about. Your provider's trailer may differ, so the quote is what counts.4
| Spec | Three-stall shower trailer | Three-station restroom and shower combo |
|---|---|---|
| Box size | 16 ft by about 6 ft 4 in | 16 ft by 6 ft |
| Weight | 4,820 lb | 5,175 lb |
| Waste tank | 385 gallons | 325 gallons |
| Fresh water | City water connection | 105 gallon tank, or city water |
| Hot water | Propane, on demand | Propane, on demand |
| Power | 30 amp cord | One to four dedicated 120 volt, 20 amp circuits, by features |
Cold weather. Ask whether the trailer has winter heat and how lines are protected overnight. Spec sheets list it as an upgrade on some units.
Send the address, dates, how many people shower a day, and what the spot has for water and power. We'll check which local providers have a trailer for those dates.
Questions
Not on every site. 29 CFR 1926.51(f)(4) applies when another standard requires employees to shower, and then calls for one shower per 10 employees of each sex on the same shift.
When OSHA requires showers, divide the men on the shift by 10 and round up, then do the same for the women, and add the two. Otherwise size by how many people shower in the busiest hour.
It needs fresh water from a hose or an onboard tank, power from an outlet or a generator, and propane for the water heater on many units. Ask the provider for the exact cord or circuit.
Divide the tank by gallons a day. A 385 gallon tank takes about 24 eight-minute showers at 2.0 gallons a minute before it needs a pump-out.
Yes, combo trailers have a toilet, sink and shower in each station. Toilets and sinks drain into the same waste tank, so service comes sooner.
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Sources