Porta Potty Rental for Construction Sites — Requirements and Costs
Construction site porta potties cost $75-$150 per unit per week with weekly servicing. OSHA requires 1 toilet per 20 workers. Most construction rental includes delivery, weekly pumping, restocking, and pickup. Add an ADA unit and hand washing station for full compliance.
Cost Breakdown
| Service | Low | High | Notes |
|---|---|---|---|
| Standard unit (weekly) | $75 | $150 | 1 unit/20 workers |
| Standard unit (monthly) | $175 | $350 | Long-term value |
| ADA-compliant unit (weekly) | $125 | $250 | Required for accessibility |
| Hand wash station (weekly) | $75 | $150 | OSHA requirement |
| Extra servicing visit | $30 | $75 | For busy sites |
| OSHA violation fine | $1,000 | $15,000 | Non-compliance penalty |
Construction Site Porta Potty Guide
OSHA Requirements
OSHA regulation 29 CFR 1926.51(c) requires toilet facilities at construction sites:
- 1-20 workers: 1 toilet
- 21-40 workers: 2 toilets
- 41-60 workers: 3 toilets
- 61-80 workers: 4 toilets
- Additional: 1 per 20 workers beyond 80
Toilets must be within a 10-minute walk of all work areas. Hand washing facilities with soap and water must be provided near toilet facilities.
Costs
- Standard unit: $75-$150/week including weekly servicing
- Monthly rate: $175-$350/month (better value for long-term projects)
- ADA unit: $125-$250/week
- Hand wash station: $75-$150/week
- Bundle (1 standard + 1 ADA + 1 sink): $250-$500/week
Servicing Schedule
Standard weekly servicing handles up to 10-15 users per unit. For busy sites (20+ workers per unit), upgrade to twice-weekly service ($30-$75 extra per service). High-traffic events or summer heat may require even more frequent service.
Placement Tips
- Place on flat, stable ground (not soft mud)
- Keep clear of heavy equipment traffic
- Position near worker break areas but away from material storage
- Ensure truck access for servicing
- Move units as construction progresses to stay within OSHA walking distance
Related Questions
What happens if OSHA inspects and I don't have enough porta potties?
OSHA can issue citations ranging from $1,000 for other-than-serious violations to $15,625 for serious violations. Willful violations can be up to $156,259. It is far cheaper to rent adequate units.
Can I use the building's toilets instead of porta potties?
Only if the building has functioning, accessible restroom facilities with running water, toilet paper, and soap. During rough construction phases, this is rarely the case. Porta potties are typically required until final plumbing is operational.
How often should construction porta potties be serviced?
Weekly for standard use (up to 10-15 users per unit). Twice weekly for 20+ users per unit. Daily for extremely busy sites or special events. Your rental company can recommend the right schedule.