Updated · Reviewed by the Brandon Rental Works dispatch team
Jobsite rules · Brandon Rental WorksOSHA Porta Potty Requirements for Jobsites, Farms & Workplaces
- OSHA porta potty requirements: 1 toilet for 20 or fewer workers; 20+ need 1 seat and 1 urinal per 40; 200+ need 1 per 50 (29 CFR 1926.51).
- We deliver jobsite units across Denton County and Collin, Dallas and Tarrant County cities — check your ZIP.
- Same-day delivery when you call by noon, Mon–Sat, including supplier no-shows.
- Weekly service is included: pump, scrub, sanitize, restock and a dated ticket on the door.
- Billed every 28 days, no contract; the itemized quote shows unit, service, delivery, pickup and tax.
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How many porta potties does OSHA require on a construction site?
OSHA 29 CFR 1926.51(c)(1) Table D-1 requires 1 toilet for 20 or fewer employees. A site with 20 or more employees needs 1 toilet seat and 1 urinal per 40 workers. A site with 200 or more employees needs 1 toilet seat and 1 urinal per 50 workers. These are legal minimums for construction work.
| Number of employees | Minimum number of facilities |
|---|---|
| 20 or less | 1 |
| 20 or more | 1 toilet seat and 1 urinal per 40 workers |
| 200 or more | 1 toilet seat and 1 urinal per 50 workers |
Each standard PolyJohn PJN3 we rent has a toilet seat and a separate non-splash urinal. So 1 standard unit counts as 1 seat plus 1 urinal under Table D-1.
OSHA jobsite toilet calculator
Source: OSHA 29 CFR 1926.51(c), Table D-1. Legal minimum shown; confirm site rules with your GC or permit office.
Is the OSHA minimum enough porta potties for my crew?
The OSHA minimum keeps a jobsite legal, but it often leaves lines at break time. A crew of 35 workers is legal with 1 standard porta potty under Table D-1. Brandon Rental Works recommends 2 units for that crew, each serviced weekly. The table separates the legal minimum from our recommendation.
| Peak crew on site | OSHA Table D-1 minimum | Our recommended units | Our recommended service |
|---|---|---|---|
| 1–10 workers | 1 toilet | 1 | Weekly (included) |
| 11–20 workers | 1 toilet | 1 | 2× per week |
| 21–40 workers | 1 seat + 1 urinal | 2 | Weekly each |
| 41–80 workers | 2 seats + 2 urinals | 3–4 | Weekly each; 2× in summer |
| 81–120 workers | 3 seats + 3 urinals | 4–6 | Call for a site plan |
| 121–199 workers | 4–5 seats + urinals | Call for a site plan | Call for a site plan |
| 200–250 workers | 4–5 seats + urinals (÷ 50) | Call for a site plan | Call for a site plan |
recorded rental calls we reviewed were construction or repair jobs (26%). Some callers managing work on their own property assumed the builder would bring a toilet. Ask before day one.
Source: 27 recorded porta potty rental calls reviewed by our office, 2026.Does OSHA require a hand-washing station on a jobsite?
OSHA 29 CFR 1926.51(f) requires adequate washing facilities for employees who apply paints, coatings, herbicides or insecticides, or who work where contaminants may be harmful. The washing facilities must be near the worksite and let workers remove those substances. A 2-sink hand-wash station is the usual way to meet that need.
Many sites have no paint or chemical work in a given week. Even then, a station near the toilet cuts down on germs passed through shared tools, water coolers and lunch tables. Our hand-wash station is a PolyJohn Bravo with 2 foot-pump sinks, soap and paper towels.
- Legal trigger: paints, coatings, herbicides, insecticides or other harmful contaminants.
- Where: in near proximity to the worksite.
- Our recommendation: 1 station next to the toilets on any crew of 10 or more, plus every site with chemical work.
What are the OSHA porta potty requirements for farm workers?
OSHA 29 CFR 1928.110 field sanitation requires 1 toilet and 1 hand-washing facility for every 20 employees, or fraction of 20, doing hand labor in the field. Both must sit within a quarter-mile walk of each worker, or at the nearest vehicle access point where terrain makes that impossible. Drinking water is also required.
The rule covers agricultural employers with 11 or more employees doing hand-labor field work on any given day. Workers whose field work, including travel time, lasts 3 hours or less are exempt from the toilet and hand-washing part. Read the official text at eCFR 29 CFR 1928.110.
| Field crew | Toilets | Hand-wash facilities |
|---|---|---|
| 11–20 workers | 1 | 1 |
| 21–40 workers | 2 | 2 |
| 41–60 workers | 3 | 3 |
| 61–80 workers | 4 | 4 |
Keeping the quarter-mile walk short
Big fields and crews that move across pastures are the hard part. A standard unit on a single-axle trailer can be towed to the next field. On sandy Cross Timbers ground near Krum and Ponder, park units on firm ground the truck can reach after rain.
On farms, a hand-wash station placed beside each toilet keeps both inside the same quarter-mile walk. Tell dispatch where the crew starts each week, and we place the set there. If the crew moves to a new field, call and we move the units once they are pumped.
See our seasonal porta potty rentals for harvest and hunting season setups.
Do construction site porta potties have to be wheelchair-accessible?
No. The 2010 ADA Standards §203.2 exempt portable toilet units provided for use exclusively by construction personnel on a construction site from the §213 toilet room rules and from the accessible route rule. Once the public, office staff or event guests use the units, the 5% accessible count in §213.2 can apply.
§203.2 also exempts structures tied to the actual work of construction, such as scaffolding, materials hoists, materials storage and construction trailers. Read the text at the U.S. Access Board 2010 ADA Standards.
If a worker on your crew uses a wheelchair, rent one anyway. Our wheelchair-accessible PolyJohn Comfort XL has a 62 × 62 inch footprint, a 32-inch door frame and a ground-level roll-in floor.
Which parts of OSHA Table D-1 do contractors misread most?
Contractors misread 4 parts of OSHA Table D-1 most often: the overlap at exactly 20 workers, counting only their own trade, treating a urinal as optional, and forgetting that the per-40 count rounds up. A crew of exactly 20 needs 1 toilet. A crew of 41 needs 2 seats and 2 urinals, not 1.
- The 20-worker overlap. The table lists "20 or less" and "20 or more." At exactly 20, the first row gives 1 toilet, and the second row also gives 1 seat and 1 urinal. One standard unit with a seat and urinal satisfies both readings.
- Rounding. "Per 40 workers" means each started block of 40. 41 workers is 2 blocks, so 2 seats and 2 urinals.
- Seat and urinal. Above 20 workers, the table counts seats and urinals together. Our standard PolyJohn PJN3 has both, so each unit covers 1 block.
- All trades count. The table counts employees on the site. If your crew shares the site with three subs, settle in writing who rents units for whom.
Quick Table D-1 math
| Workers | Math | Minimum units |
|---|---|---|
| 8 | 20 or less | 1 |
| 20 | 20 or less | 1 |
| 28 | 28 ÷ 40 = 0.7 → 1 | 1 |
| 41 | 41 ÷ 40 = 1.03 → 2 | 2 |
| 95 | 95 ÷ 40 = 2.4 → 3 | 3 |
| 230 | 230 ÷ 50 = 4.6 → 5 | 5 |
What does a weekly jobsite porta potty service include?
Every weekly Brandon Rental Works jobsite service includes 4 steps: pumping the 60-gallon holding tank, scrubbing and sanitizing the seat, urinal, walls and floor, restocking toilet paper and hand sanitizer, and hanging a dated service ticket on the door. Extra visits are available for crews of 11 or more or for hot months.
- Pump. The vacuum truck empties the tank and adds fresh deodorizing chemical.
- Scrub and sanitize. Seat, urinal, walls, door handle and floor.
- Restock. Toilet paper and hand sanitizer; sink units get fresh water.
- Check and record. Door latch, vent and level footing, then a dated ticket inside the door.
Keep the service side of the unit within about 25 feet of where the pump truck can park. A unit boxed in by lumber or a dumpster may be skipped until the path is clear.
Need jobsite toilets on site this week?
Give dispatch the crew size, ZIP and start date. We match the unit count to Table D-1 and set the weekly service day.
What OSHA rule covers porta potties at plants, warehouses and yards?
Permanent workplaces fall under OSHA general industry standard 29 CFR 1910.141, not the construction rule. Table J-1 in 1910.141(c) sets 1 toilet for 1–15 employees, 2 for 16–35, 3 for 36–55, 4 for 56–80, 5 for 81–110, 6 for 111–150, and 1 more for each extra 40 employees over 150.
Portable units come in when a plant's restrooms are down, a shutdown brings in extra contractors, or a yard has no plumbing. Read 1910.141 on osha.gov, then see our industrial portable restroom rentals.
Which OSHA standard applies?
| Workplace | Standard |
|---|---|
| Construction, remodel, demolition | 29 CFR 1926.51 |
| Farm field hand labor | 29 CFR 1928.110 |
| Plants, warehouses, yards | 29 CFR 1910.141 |
| Public events (accessible count) | 2010 ADA §213.2 |
Texas has no state OSHA plan for private employers, so federal OSHA standards apply on private Texas jobsites.
How do I set up jobsite porta potties to stay compliant?
A compliant jobsite porta potty setup takes 5 steps: count the peak crew, apply Table D-1, add hand washing where 1926.51(f) applies, place units on level ground the service truck can reach within about 25 feet, and keep a weekly service record. Our dated service ticket on each door is that record.
- Count the peak crew. All trades on the busiest day.
- Apply Table D-1. Use the calculator, then decide if you want our recommended count.
- Add hand washing. Required with paint, coatings or chemicals; smart on any big crew.
- Place it right. Level, firm ground; a truck path about 10–11 feet wide with no wires under 12 feet; 3 feet clear in front of the door.
- Keep it serviced. Weekly visits are included. Each leaves a dated ticket inside the door that shows when the unit was last pumped and sanitized.
Billing, servicing and pickup for crews are on our construction site toilet rental page. To check counts for events instead, use the porta potty sizing guide.
Jobsite toilet rule questions from contractors
Who has to provide the porta potty, the general contractor or the sub?
I'm a homeowner remodeling my own house. Do I need a porta potty?
How often does OSHA say a jobsite toilet must be cleaned?
Is hand sanitizer enough for OSHA hand washing?
Do construction porta potties have to be wheelchair-accessible?
My crew moves every day. Do we need a toilet at each stop?
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Same-day delivery when you call by noon, Mon–Sat. Your quote lists the unit, rental length, servicing, delivery, pickup, fees and tax — before you pay.
- Locally owned yard at 302 Dallas Dr, Denton, TX 76205
- Driver calls or texts about 30 minutes before arrival
- Nobody needs to be home — mark the spot and we place it
- Weekend events: Friday drop, Monday pickup, no extra rental charge
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