How Many Showers Do I Need?

Capacity planning based on crew size, shift schedule, and shower usage data.

Crew Size Recommendations

Crew Size	Recommended Config	Showers Per Shift	Notes
1-10	1-Stall or 2-Stall	1-2 stalls	Apartment shutdowns, small job sites
10-25	3-Stall Combo or 4-Stall	3-4 stalls	Staggered use, single shift
25-50	8-Stall Private	8 stalls	Standard construction crew
50-100	8-Stall (x2) or 16-Stall	8-16 stalls	Dual shift or large crew
100-200	16-Stall Semi	16 stalls	Daily servicing recommended
200+	28-Stall Semi or Multi-Unit	28+ stalls	Military, disaster camps

Based on one shower stall supporting 10-15 workers per shift with staggered use.

Water Usage Data

Flow Rate: 2.0 GPM
Average Shower Duration: 7.5 minutes
Water Per Shower: 15 gallons
Showers Per 300-Gal Fill: 20 showers

Fill Cycle Planning

Tank Size	Showers Per Fill	Fill Source	Refill Method
150 gal	10	Internal tank	City water or Water Box
200 gal	13	Internal tank	City water or Water Box
300 gal	20	Internal tank	City water or Water Box
500 gal	33	Internal tank (semi)	City water or Water Box
660 gal	44	Water Box	Refilled by service team
1,320 gal	88	2x Water Box (daisy-chain)	Refilled by service team

Based on 15 gallons per shower (2.0 GPM x 7.5 min). Actual usage varies by user behavior.

Key Planning Factors

Shift schedule: single shift means all showers in a narrow window. Stagger end times if possible.
Fresh water is the limiting factor: waste tanks hold more than fresh water tanks. Refill fresh water more frequently.
City water vs. tank: city water hookup eliminates the fill cycle constraint entirely.
Group vs. private: group/flex showers cycle faster. Private stalls include changing time.

Need Help Sizing Your Shower Trailer?

Tell us your crew size, shift schedule, and location. We'll recommend the right configuration.

Request a Quote (844) 900-3190