What Does OSHA Require on a Jobsite?
Start with the table, not a guess. OSHA 1926.51(c) says crews of 20 or fewer need 1 toilet facility. Once you cross 20 workers, the rule shifts to 1 toilet seat and 1 urinal per 40 workers, and at 200 or more workers it drops to one seat and one urinal per 50. A 35-person framing crew in Aurora falls in that middle bracket, so two combo units usually covers it. Bigger builds need the math redone as the crew grows, not left on autopilot. If you are running a full build-out with fencing and dumpsters too, our construction site services page walks through the whole setup. For the exact seat-and-urinal breakdown by crew size, see OSHA Portable Toilet Requirements. Most contractors order standard porta potty rental units for this, since they're built for daily crew use rather than events.
How Many Porta Potties Do I Need for a Wedding or Festival?
Guest count and event length drive this, not square footage. A 4 hour reception for 100 guests runs about 2 standard units, plus one accessible unit under ADA Standards section 213.2, which requires at least one accessible unit whenever units are clustered, even if the math on the rest rounds down to a smaller number. Add a unit for every additional 50 guests, and add another for every 2 hours past the first 4. For a wedding at a venue near Cherry Creek, 16.2 miles southwest of central Aurora, that same math applies regardless of the drive. Alcohol service pushes usage up fast; add 20 to 25 percent more units to your base count if there's a bar. Check Wedding Restroom Rental or Festival Restroom Rental for setup specifics, and if you want something nicer than standard, look at the Deluxe Flushable Porta Potty.
Worked Example: 150-Person Two-Day Festival
Run the numbers once and the pattern holds for any event. 150 guests at 6 hours per day needs roughly 3 units on the base ratio, since 6 hours is above the 4 hour baseline. Alcohol on-site adds another unit. Running two days means doubling servicing frequency rather than doubling unit count, since ANSI/PSAI Z4.3 treats a 40 hour week as the baseline service interval, and a two-day event with heavy alcohol use will burn through that faster. Total for this event: 4 standard units plus 1 ADA unit, serviced daily instead of once. A standard unit at event pricing runs in this band:
| unit | duration | low | typical | high |
|---|---|---|---|---|
| standard | event | 200 | 400 | 800 |
| ada | weekend | 199 | 240 | 300 |
Five units at those rates puts this festival well inside a manageable budget, and you can request the exact quote through Request a Quote.
How Many Cubic Feet Are in a 10, 20, 30 and 40 Yard Dumpster?
A cubic yard is 27 cubic feet, so a 10 yard dumpster holds 270 cubic feet, a 20 yard holds 540, a 30 yard holds 810, and a 40 yard holds 1,080. These volumes matter more than weight for bulky, light debris like furniture or drywall scraps. For dense material like concrete or shingles, weight limits kick in before the box is visually full. Full spec breakdowns, including how many feet each box measures on the ground, live at Dumpster Sizes and Dimensions. If you're not sure which size fits a renovation, 10 Yard Dumpster Rental and 20 Yard Dumpster Rental both break down what they're built for.
How Many Tons Can a 20, 30 and 40 Yard Dumpster Hold?
Weight capacity depends on what's inside, not just the box size. A 20 yard dumpster typically handles 2 to 3 tons of mixed debris before hitting a weight ceiling, while a 30 yard dumpster holds roughly 3 to 4 tons under the same mixed-load assumption. A 40 yard box, being mostly used for bulky low-density waste, still caps out in a similar tonnage range because the truck and axle limits matter more than the box volume. Overloading past the rated tonnage triggers overage fees, so match the box to the job. See Dumpster Weight Limits for how providers set those caps, and 30 Yard Dumpster Rental or 40 Yard Dumpster Rental for size-specific guidance. Pricing bands for these sit at:
| unit | duration | low | typical | high |
|---|---|---|---|---|
| dumpster | day | 51 | 75 | 112 |
| dumpster | week | 426 | 600 | 778 |
| dumpster | month | 91 | 108 | 500 |
How Many Feet Long Are 10 Yard and 20 Yard Dumpsters?
Ground footprint matters for driveway and street placement, especially in tighter Aurora lots. A 10 yard dumpster runs shorter than a 20 yard, and both need roughly 60 feet of straight clearance behind the delivery truck to drop the box safely. If your site backs up against a fence line or a neighbor's driveway, measure that clearance before you book. Roll-Off Dumpster Rental covers delivery logistics in more depth, and if the box needs to sit in a public right of way, placement should be confirmed with the city rather than assumed, since permit rules vary by location.
Do I Need More Units for a Multi-Day or Alcohol-Served Event?
Yes, on both counts, and they stack. Alcohol service alone typically pushes usage up 20 to 25 percent over a dry event with the same headcount, because people drink more water and use restrooms more often. Multi-day events don't need double the unit count, but they do need double the servicing, since a standard tank runs 60 to 70 gallons and a busy 2-day festival can approach that limit well before the baseline weekly service would normally arrive. Watkins sits 13.3 miles east of Aurora and hosts smaller outdoor gatherings where this exact math applies at a smaller scale. For anything running past a single day, book service more often up front. Emergency Porta Potty Rental exists for the events that get this wrong mid-weekend.
What Else Should I Budget for Beyond Toilet Count?
Toilets are one line item. Handwashing matters separately: 29 CFR 1910.141(d)(2) requires soap and towels or a hand-drying device, not sanitizer alone, for general industry workplaces, and construction sites lean on the same expectation in practice. Add a handwashing station rental alongside your toilet count, especially if food service is involved. If your crew is applying paint, coatings, or pesticide-type products, OSHA 1926.51(f)(1) specifically requires washing facilities for that contaminant exposure, separate from general sanitation. Fencing and waste also scale with headcount: a 150-person festival usually needs temporary fence rental for crowd flow and a 10 Yard Dumpster Rental for cleanup. Check overall unit costs at Porta Potty Rental Cost before finalizing a budget, and see Portable Toilet Rental for the full lineup Aurora Porta Pros carries.
How many porta potties do I need for 100 people?
For 100 guests over 4 hours, plan on 2 standard units plus 1 ADA-accessible unit under ADA Standards 213.2. Extend the event past 4 hours or add alcohol, and add units accordingly. Aurora Porta Pros can confirm the exact count once you share event length.
How many porta potties per person on a construction site?
OSHA 1926.51(c) sets it by crew size, not a flat per-person ratio: 1 toilet for 20 workers or fewer, then 1 seat and urinal per 40 workers up to 200. A 35-person crew typically needs two combo units.
How many cubic feet are in a 30 yard dumpster?
A 30 yard dumpster holds 810 cubic feet, since each cubic yard equals 27 cubic feet. That volume works well for bulky renovation debris like cabinets and framing scrap rather than dense material.
How many tons does a 40 yard dumpster hold?
A 40 yard dumpster generally holds in a similar tonnage range as smaller boxes, since axle and truck weight limits cap it before the volume does. Check with the provider on your specific load type before booking.
Do I need an ADA-accessible porta potty for my event?
Yes, whenever portable toilets are clustered for an event. ADA Standards section 213.2 requires at least one accessible unit, even if your headcount math would otherwise round down to zero extra units.
How far will Aurora Porta Pros deliver outside the city?
Nearby areas like Aetna Estates, 4.7 miles northeast, and Four Square Mile, 12.0 miles west, are both within normal delivery range. Contact us directly through Contact to confirm your specific site.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.