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How far ahead should I book a porta potty in Charleston?
Seven to ten days covers most jobs. Weekends near the coast fill faster, so if your event lands close to Sullivan's Island, 11.7 miles southeast, or you are pulling a crew from Goose Creek, 14.1 miles north, call earlier. Same-day and next-day service exists through emergency porta potty rental, but expect a premium. A standard porta potty rental booked a week out costs less than the same unit ordered the morning you need it. If you are still deciding between a basic cabin and something nicer, look at the deluxe flushable porta potty before you call, not after the truck is loaded. Confirm your delivery window matters most when the site sits off a narrow lane; a roll-off or restroom trailer needs about 60 feet of straight clearance behind the truck, and that same clearance rule applies to anything delivered on a flatbed.
What size unit and how many do I actually need?
Headcount decides this, not guesswork. OSHA 1926.51(c) sets the ratio for construction crews: one toilet for 20 workers or fewer, then one toilet seat and one urinal per 40 workers once you pass 20, dropping to one per 50 once you hit 200 or more. Field crews in agriculture follow a different rule, OSHA 1928.110, which calls for one facility per 20 workers within a quarter mile walk. Events run differently since guests do not clock in for eight hours straight; use the how many porta potties do I need guide to size a wedding or festival crowd. Every cluster needs at least one accessible unit under ADA Standards 213.2, even if you only have a handful of standard cabins on site. The ADA accessible porta potty has a wider footprint and needs its own patch of level ground. If you are running a jobsite in Charleston with sub 20 workers for a short stretch, one porta john rental usually clears code, but double-check headcount before delivery, not after.
Where should the unit go on site?
Firm, level ground, away from doorways, and reachable without blocking a fire lane. A standard unit runs about 44 by 48 inches on the ground and stands roughly 92 inches tall, so give it clearance on all sides for servicing. ADA units need more: a 60 inch turning circle per ADA Standards 304.3.1 and a 36 inch clear path per ADA Standards 403.5.1 so a wheelchair user can actually reach the door. If the unit sits near a curb cut or sidewalk in Charleston, placement in the public right of way needs confirming with the city before delivery, since we cannot state a specific ordinance without checking first. The porta potty placement guide walks through slope, sightlines, and how far from a food tent is far enough. For multi-day construction jobs, pair placement with temporary fence rental so the unit does not become a target after hours, and check whether the area needs lighting under OSHA 1926.56(a) if crews are on site before sunrise or after dark.
What does it cost and what is included?
A standard unit typically runs 100 to 350 dollars a day, 130 to 500 for a week, and 125 to 325 for a month, based on measured rental data across the region. Weekend rates for the same unit generally land near the higher end of the daily range. Delivery is usually billed separately, and that fee runs roughly 100 to 500 dollars depending on distance and how many units go out. Ordering more than one? A cluster delivery to a single Charleston address costs less per unit than scattering the same units across separate stops.
| unit | day | week | month |
|---|---|---|---|
| standard | $100-$350 | $130-$500 | $125-$325 |
| ada | $200-$400 | -- | -- |
| deluxe | $85-$1200 | $150-$290 | -- |
Full breakdowns live on porta potty rental cost, porta potty rental per day, and monthly porta potty rental if you want the long version. Service intervals matter too: ANSI/PSAI Z4.3 sets one weekly service visit as the baseline for up to 10 users over a 40 hour week, so a busy jobsite may need more frequent pumping than a quiet one. Check how often are porta potties cleaned if your crew count runs high.
Before delivery day, run through this:
- Confirmed headcount against OSHA 1926.51(c) or 1928.110, whichever applies
- Picked unit type: standard, deluxe, or ADA
- Verified ground clearance and the 60 foot truck approach
- Checked placement against ADA Standards 405.2 if a ramp is needed
- Confirmed whether handwashing station rental is required alongside the toilets, since 29 CFR 1910.141(d)(2) calls for soap and towels, not sanitizer alone
- Booked delivery 7 to 10 days out, or called emergency porta potty rental if the timeline is tighter
For anything larger than a handful of units, construction site services or event restroom rental bundle the toilet order with fencing, dumpsters, or a restroom trailer under one delivery.
How much notice does Charleston Porta Pros need for a weekend event?
A week is safest, especially near the coast. Weekend rates for a standard unit run higher than weekday rates, so booking early also protects your budget. If your date is inside 48 hours, call and ask about emergency porta potty rental directly.
Do I need an ADA unit even for a small event?
Yes, if you are clustering portable toilets at all. ADA Standards 213.2 requires at least one accessible unit per cluster, no matter how small the group, with a 5 percent minimum once you scale up.
Can a porta potty go on gravel or grass?
Grass works fine if it is level. Gravel is fine too as long as it is compacted, not loose. Steep or soft ground causes tipping risk and service trucks may refuse the stop.
What is included in the delivery fee?
Delivery, setup, and pickup at the end of the rental. Service fees during the rental, if you need extra pump-outs, are billed separately from the delivery charge.
Does a construction site need a handwashing station too?
Only in specific cases under OSHA 1926.51(f)(1): where workers apply paints, coatings, herbicides or insecticides, or handle other contaminants. Otherwise, general sanitation under 1926.51(c) covers the toilet requirement alone.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.