Do You Need a Porta Potty for a Graduation Party?
A porta potty for a graduation party keeps 50 to 150 open-house guests out of your house bathroom and off your septic system.
A real person answers live Mon–Sat 7:00 am – 7:00 pm. Quotes back in under 1 business hour.
- Key point
- A 4-hour open house with up to 50 guests needs 1 standard unit. Add 1 unit per 50 extra guests.
- Key point
- Late May through June is graduation season, so book 7 or more days ahead to lock in your party date.
- Key point
- Serving beer? Add 1 unit per 100 guests. Over 4 hours, add 1 per 100 for every extra 2 hours.
- Key point
- Serving food means adding 1 hand-wash station for every 2–3 toilets so guests can wash before they eat.
- Key point
- Event units start from $165 for 1–3 days, delivery and pickup included. Saturday parties get Monday pickup free.
Do you need a porta potty for a graduation party?
Quick answerA graduation party with 50 or more guests usually needs at least 1 porta potty. Open houses run 4–6 hours, guests drink a lot of water and beer, and one house bathroom backs up fast. A rental unit also keeps guests from walking through your home all afternoon, and protects a septic system from overload.
Northeast Ohio open-house season runs from late May through July. Most parties are in backyards and driveways, with a tent, a food table and a steady flow of guests. Families, coaches, neighbors and classmates come and go in waves.
Under 30 guests for 3 hours or less, your house bathroom may be fine. Past that, plan on a rental.
How many porta potties for a graduation open house?
Quick answerStart with 1 standard porta potty per 50 guests for a 4-hour party. Add 1 unit per 100 guests for every extra 2 hours, rounding up. Add 1 unit per 100 guests when beer or other alcohol is served, with a minimum of 1 extra. Add a hand-wash station for every 2–3 toilets when food is served.
Those ratios follow the standard industry sizing chart for events. Here is a worked example.
Worked example: 100 guests, 5-hour open house, beer served, food served
- Base count: 100 guests for 4 hours = 2 units.
- Extra time: 5 hours is 1 hour past 4. Round up to one 2-hour block: 100 guests ÷ 100 = +1 unit.
- Alcohol: 100 guests ÷ 100 = +1 unit.
- Total toilets: 2 + 1 + 1 = 4 standard units.
- Hand-wash stations: 4 toilets ÷ 2–3 = 2 stations, since food is served.
| Open house | Toilets | Hand-wash stations (with food) |
|---|---|---|
| 50 guests, 4 hrs, no alcohol | 1 | 1 |
| 75 guests, 4 hrs, no alcohol | 2 | 1 |
| 75 guests, 5 hrs, beer | 4 | 2 |
| 100 guests, 5 hrs, beer | 4 | 2 |
| 150 guests, 6 hrs, beer | 7 | 3 |
If a guest uses a wheelchair or walker, make at least 1 unit wheelchair-accessible. For the full method, see how many porta potties you need.
Why does a septic system matter for a graduation party?
Quick answerA septic system can overload when 100 guests use the house bathroom in one afternoon. Many rural homes in Medina, Geauga and Lorain counties run on septic. A modern toilet uses about 1.6 gallons per flush, so 100 guests flushing twice adds roughly 320 gallons in a few hours, on top of kitchen and cleanup water.
A septic tank needs time to let solids settle. A big surge pushes water through before that happens, and solids can reach the leach field. A clogged leach field is an expensive repair and can mean a soggy, smelly lawn for weeks.
- Older homes may have 3.5-gallon toilets, which more than doubles the water.
- Wipes and paper towels from guests clog septic lines too.
- If your tank is due for pumping, the risk is higher.
On a septic home, rent enough units that guests never need the house bathroom. Lock or sign the inside bathroom as family only.
Where should the porta potty go at a backyard open house?
Put the porta potty on level ground at least 25 ft from the food tent, downwind, and within sight of the party. Our truck needs to get within about 25 ft on a hard surface. Units can go through a side gate 48 inches or wider. The side of the garage or the end of the driveway usually works best.
Set the hand-wash station between the units and the food, so guests wash on the way back. For a party running past sunset, hang a battery light inside each unit and light the path.
Grass is fine in dry weather, but a rainy week in June can turn clay soil soft. Pick a firmer spot if the lawn is wet. For every placement detail, use our porta potty placement checklist.
How far ahead should you book porta potties for a graduation party?
Quick answerBook porta potties for a graduation party at least 7 days ahead during late May and June. That season fills up, especially Saturdays in early June. Outside the rush, next-business-day delivery with no rush fee is standard. Cancellation is free up to 24 hours before delivery, so booking early carries little risk.
Most families book once the date and rough guest count are set. You can add a unit later if the guest list grows, as long as there is room on the delivery route.
Missed the window? Orders confirmed by 12:00 noon Monday through Saturday can be delivered the same day for a $75 fee.
When are porta potties delivered and picked up for a weekend open house?
Quick answerFor a Saturday open house, units are delivered Friday or Saturday morning and picked up Monday, with no charge for the extra days. We are closed Sunday, so a Sunday party gets a Saturday drop and Monday pickup. Delivery comes in a 4-hour window, and the driver calls or texts about 30 minutes ahead.
You do not need to be home for the drop. Mark the spot with a cone, flag or chalk X, or text us a photo. Friday delivery gives you time to hang lights, add a trash can, and set up the hand-wash station before guests arrive.
How much does a graduation party porta potty cost?
Quick answerA standard event porta potty starts from $165 for 1–3 days, with delivery and pickup included. A hand-wash station starts from $95. For the 100-guest example with 4 units and 2 stations, the total comes to about $850 before tax, or about $918 with Cuyahoga County's 8% sales tax.
| Option | Starting price (before tax) |
|---|---|
| Standard porta potty, 1–3 days | from $165 |
| Deluxe flushing unit with sink | from $265 |
| Wheelchair-accessible unit | from $225 |
| Hand-washing station | from $95 |
| 2-stall restroom trailer | from $795 per weekend |
There is no card fee, fuel surcharge or removal fee. Stark and Trumbull county addresses add a flat $45 travel fee. See the porta potty rental cost guide for full details.
Do you need a hand-wash station if you serve food?
Quick answerA hand-wash station is a smart add when you serve food at a graduation party. Guests handle pulled pork, sheet cake and chips with their fingers. Plan 1 hand-wash station for every 2–3 toilets. Each two-sided station holds about 20 gallons of water for roughly 200–250 washes, with soap and towels.
Standard units come with hand sanitizer, which helps but does not replace soap and water. A deluxe flushing unit has a sink inside, which suits smaller parties. Ready to plan? Our event porta potty rental page covers units, delivery windows and booking. Compare sinks on our hand-washing station rental page.
Common questions
Is 1 porta potty enough for a 50-person graduation party?
One standard porta potty covers about 50 guests for a 4-hour party with no alcohol. Serve beer, or run the open house longer than 4 hours, and you need a second unit. A standard event unit starts from $165 for 1–3 days, delivered and picked up.
Should we rent his-and-hers porta potties for a grad party?
His-and-hers units are a nice touch for 100 guests or more, since 2 or more units can each get a sign. Every standard unit has a seat and a urinal, so either sign works. For a mostly-women crowd, add 1 unit per 150 guests.
Can we keep the porta potty through the weekend for two graduation parties?
An event rental covers 1–3 days, and a Saturday party gets Friday delivery and Monday pickup with no charge for the extra days. Two parties on Saturday and Sunday can share the same units. Since we do not service on Sundays, add 1 extra unit so the second crowd has fresh capacity.
Does a flushing porta potty work better for a graduation party?
A deluxe flushing unit has a foot-pump flush, a sink and a mirror, which guests like at a dressy open house. It handles roughly 250–300 flushes before service, compared with about 200 uses for a standard unit. Deluxe flushing units start from $265 for 1–3 days.
Do I need a permit for a porta potty at my graduation party?
A porta potty on your lawn or driveway needs no permit. Placing the unit on the street or tree lawn needs the city's right-of-way permit, which the homeowner gets. Some HOAs also set rules on where units can sit, so check your covenants.
What happens if it rains on graduation party day?
Rain does not affect a porta potty much, but it softens lawns. If the lawn is soaked, pick a spot on the driveway or a gravel area. Keep doors closed and lids down so rain stays out of the tank, and lay a mat at the door to cut down on mud.
Reserve units for your graduation open house
Send your ZIP, dates and unit type, or call for the fastest answer. Same-day cutoff is noon.
(216) 223-2644Tap to call. Live answer Mon–Sat 7:00 am – 7:00 pm. Same-day cutoff is 12:00 noon.