How Many Porta Potties Do I Need for a Job Site?
OSHA 1926.51(c) sets the baseline: 1 toilet facility for 20 workers or fewer, then 1 toilet seat and 1 urinal per 40 workers as you climb past 20, and 1 seat plus 1 urinal per 50 workers once you hit 200 or more. A crew of 15 on a New Braunfels remodel needs one unit. A crew of 45 needs two, sometimes three if you want to keep lines short during lunch. Bigger commercial jobs scale the same way, and you can check exact unit counts against your headcount on the construction site services page. Multi-week jobs usually run better on a monthly porta potty rental than repeated short holds, since the per-day cost drops as the term stretches. If your crew works with paints, coatings or solvents, OSHA 1926.51(f)(1) kicks in and you need actual washing facilities on top of toilets, not hand sanitizer. A handwashing station rental or portable sink rental covers that requirement, and 29 CFR 1910.141(d)(2) is clear that sanitizer alone does not satisfy it. Standard unit pricing for job sites runs the porta potty rental cost page in detail if you want the full breakdown by duration.
How Many Porta Potties Do I Need for an Event?
| guests | duration | units needed |
|---|---|---|
| 50-100 | up to 4 hours | 2 |
| 100-250 | up to 4 hours | 4-5 |
| 250-500 | up to 4 hours | 8-10 |
| 100-250 | full day | 6-7 |
| 250-500 | full day | 12-14 |
That table assumes no alcohol and a single day. A backyard wedding for 120 guests over 4 hours needs about 4 to 5 standard units, or you can size up with a restroom trailer rental if you want something nicer for photos. A 2 stall restroom trailer handles smaller gatherings well, while an 8 stall restroom trailer covers a bigger festival crowd without a line ever forming. Check the event restroom rental page for the fuller sizing chart, and if it is specifically a wedding, the wedding restroom rental guide covers placement near a reception tent.
Does Alcohol Change the Unit Count?
Yes. Alcohol pushes people to the bathroom more often and for longer, so bump your total by 30 to 50 percent over the dry-event number. A 200-guest reception with an open bar that would need 4 units dry should plan on 5 to 6. Multi-day festivals compound this further, since usage climbs each day as people arrive earlier and stay later. A three-day event in New Braunfels should treat day one as the baseline count from the event table, then add service visits rather than just more units, since ANSI/PSAI Z4.3 sets the baseline service interval at once per week for up to 10 users over a 40-hour week, a rate that will not keep up with a beer tent. Talk through your specific layout on the festival restroom rental or concert restroom rental pages, both of which cover service frequency for multi-day setups.
What Does ADA Require for Accessible Units?
ADA Standards section 213.2 requires that at least 5 percent of clustered single-user portable toilets be accessible, with a minimum of one unit regardless of cluster size. So even a 3-unit job site needs one ADA unit. That accessible unit needs a 60 inch turning circle inside per section 304.3.1, a door opening at least 32 inches wide per section 404.2.3, and a route to reach it at least 36 inches clear per section 403.5.1. Ground surfaces leading to it need to be stable and firm per section 302.1, and operable parts like the latch need to work with one hand and no more than 5 pounds of force per section 309.4. Most events and job sites in New Braunfels handle this with one ADA accessible porta potty placed at the front of the cluster, close to the accessible parking or drop-off point. Full requirements are laid out on the ADA restroom requirements page if you are planning placement yourself.
Worked Example: 40-Person Construction Crew, 3 Weeks
Forty workers on a standard 40-hour week fall into the 1-per-40 bracket under OSHA 1926.51(c), so two standard units plus one ADA unit covers the crew and the accessibility requirement. Standard units run in the range covered on the standard porta potty rental page, and a 3-week hold is long enough that a weekly or monthly rate beats booking day by day. If the crew is mixing coatings or using solvents at any point, add a handwashing station under 1926.51(f)(1) rather than assuming the toilet's built-in dispenser covers it. Delivery to a job site inside New Braunfels typically needs the same site access as any other portable equipment: check the porta potty placement guide for ground clearance and door swing before the truck shows up. If the job runs past 3 weeks, the porta john rental and monthly options both scale down the per-day cost further.
Worked Example: 300-Guest Wedding With Open Bar, 6 Hours
Three hundred guests at a full-day event without alcohol lands at roughly 12 to 14 units from the event table above. Add an open bar and you are looking at 16 to 18, plus at least one ADA unit to satisfy section 213.2. Most venues at this size skip individual units entirely and go with a 4 stall restroom trailer or larger, since a trailer handles the same headcount with fewer total fixtures and a nicer interior. A luxury restroom trailer is common for receptions where guests will actually notice the bathroom. Pair it with a handwashing station rental near the food service area, and confirm generator or power needs against a temporary power pole if the site has no hookup.
Where Do Nearby Cities Fit for Comparison Sizing?
New Braunfels sits close enough to several towns that crews often run the same job across city lines. Seguin is 14.6 miles southeast, Cibolo is 14.9 miles southwest, and Schertz is 16.1 miles southwest, all inside a normal same-day delivery radius. Universal City is 19.4 miles southwest and Converse is 22.3 miles southwest, both still workable for a single delivery run without a second trip charge. If your job or event spans one of those cities, New Braunfels Porta Pros covers delivery to Seguin, Cibolo, Schertz, Universal City and Converse under the same sizing rules covered here. Check the service areas page for the full coverage map.
How many porta potties do I need for 100 people?
Plan on 2 units for a 4-hour event without alcohol, or 3 if there's an open bar. For a full 8-hour day, move up to 3 to 4 units. Add one ADA unit regardless of headcount, since section 213.2 requires at least one accessible unit per cluster.
How many tons does a 30 yard dumpster hold?
Weight limits vary by load type and by hauler policy, and this isn't listed in our verified specs. Check the dumpster weight limits page or a 30 yard dumpster rental quote for the exact limit tied to your load, since heavy debris like concrete caps out faster than mixed trash.
How many feet is a 20 yard dumpster?
Dimensions vary by manufacturer, and exact length and width aren't in our verified specs for this size. The dumpster sizes and dimensions page breaks down what's confirmed, and a 20 yard dumpster rental quote will confirm the footprint for your delivery spot.
How many cubic feet in a 10 yard dumpster?
A cubic yard equals 27 cubic feet, so a 10 yard dumpster holds 270 cubic feet of volume. That's enough for a small bathroom gut or a garage cleanout. See 10 yard dumpster rental for what typically fills one.
Do I need an ADA unit for a small job site?
Yes, if you're renting portable toilets at all. ADA Standards section 213.2 requires at least one accessible unit even in a small cluster, with no exception for low headcount. A single ADA accessible porta potty alongside your standard units satisfies it.
What happens if I under-order units for an event?
Lines back up fast, especially past hour 3 of an event with alcohol service. It's cheaper to size up front than to call for an emergency add mid-event. The emergency porta potty rental page covers rush delivery if you do get caught short.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.