How many units do I need?
Start with headcount and hours, not guesswork. Construction crews follow OSHA 1926.51(c): one toilet for 20 workers or fewer, then one toilet seat and one urinal per 40 workers once you cross that line, scaling to one per 50 workers at 200 or more. Farm crews follow a different rule: OSHA 1928.110 calls for one facility per 20 hand-labor workers, reachable within a quarter mile walk. Event planners should think in guest-hours, not just headcount; a wedding running six hours needs more capacity per guest than a two-hour lunch rush. Our how many porta potties do I need guide walks through the math for weddings, festivals and jobsites side by side. If you are close to a ratio boundary, round up. A standard unit rents for 100 to 350 dollars a day depending on term length, so oversizing by one unit costs less than a mid-event scramble. For an accessible slot, ADA Standards 213.2 requires at least 5 percent of a clustered group to be accessible, never fewer than one unit, which our ADA accessible porta potty option covers.
What size and clearance does delivery need?
A standard unit sits about 44 by 48 inches on the ground and stands roughly 92 inches tall, so measure your placement spot before we load the truck. Flat, stable ground matters more than most people expect; ADA Standards 302.1 calls for surfaces that are stable, firm and slip resistant, and that standard is a good baseline even for non-accessible units on soft Lafayette lawns after rain. If you are also renting a roll-off dumpster, plan for about 60 feet of straight clearance behind the delivery truck, since dumpster trucks back in differently than our service vans. Note any gates, low branches or overhead wires along the path. For jobsites already running a temporary fence rental or light tower rental, tell us where those sit so we route the toilet delivery around them, not through them. Placement near a building entrance also affects service access on pump-out day, so leave room for our truck to park within reasonable hose length. Check our porta potty placement guide for spacing details specific to slopes and hardscape.
Do I need a permit for placement in Lafayette?
Placement in the public right of way needs confirming with the city; we have not verified a specific Lafayette ordinance for this, so check with the relevant city department before setting units on a street, sidewalk or public easement. Private lots and yards typically do not carry the same review, but rules vary by property type and use case. If your event sits on a public right of way anywhere near West Lafayette, 7.6 miles northwest of Lafayette, that city's own permitting applies instead, not Lafayette's. Our porta potty permit requirements page has more on how to check before you commit to a location. Dumpster placement carries its own separate permit question too; see dumpster permit requirements if you are renting a construction dumpster alongside the toilets. When in doubt, call the city first and us second. It is a five-minute check that avoids a delivery reschedule.
When should I schedule service and pickup?
Book delivery for the day before your event starts, not the morning of, so you have a buffer if weather or traffic pushes the truck back. ANSI/PSAI Z4.3 sets the baseline service interval at one visit per week for up to 10 users over a 40-hour week, which is the standard we use for ongoing jobsite rentals; higher headcounts or heavier use need more frequent pump-outs. For multi-week jobs, our monthly porta potty rental plans build that service schedule in up front. Weddings and one-day festivals usually just need delivery the day before and pickup the day after; check event restroom rental or wedding restroom rental for timing specifics. If you are near Buck Creek, 10.2 miles northeast, or Stockwell, 10.7 miles southeast, build in extra lead time since those routes take longer than an in-town Lafayette delivery. Handwashing stations follow the same delivery window; see handwashing station rental and the related handwashing requirements page, since 29 CFR 1910.141(d)(2) requires soap and towels or a hand-drying device, not sanitizer alone.
| unit | duration | typical price |
|---|---|---|
| standard | day | 150 |
| standard | week | 200 |
| standard | month | 200 |
| ada | week | 185 |
| deluxe | week | 250 |
Prices vary by term and demand; see porta potty rental cost for the full breakdown by unit type.
How far in advance should I book a porta potty in Lafayette?
Five to seven days covers most standard requests. Weekends and large events fill faster, so book two weeks out if you need more than four units or an ADA accessible porta potty. Rush orders are possible; see emergency porta potty rental for same-day options.
What is included with a standard unit rental?
A standard unit includes the toilet, a 60 to 70 gallon holding tank, and setup at your chosen site. Service frequency and pickup are scheduled separately based on event length. Add-ons like portable sink rental or hand sanitizer stations book as separate line items.
Can I move a unit once it is delivered?
Do not move it yourself. Units are heavy once tanks have any waste in them, and improper moving can spill contents or damage the tank seal. Call Lafayette Porta Pros and we will reposition it during a scheduled service stop.
Do construction sites have different requirements than events?
Yes. Construction sites follow OSHA 1926.51(c) ratios tied to worker count, while events size units around guest-hours and peak attendance. Our construction site services page and OSHA portable toilet requirements guide cover each separately.
What happens if I underestimate how many units I need?
Lines form fast and units fill sooner than planned. We can often deliver an added unit same-day depending on route; call ahead rather than wait. Reviewing how many porta potties do I need before booking avoids this entirely.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.