Construction Porta Potty Rental in St. Louis, MO

Construction porta potty rental in St. Louis, Missouri puts toilets on the job site for as long as the work runs, sized to the crew under OSHA 29 CFR 1926.51. Call (888) 417-6737, answered 24/7, and we connect you with a provider that serves the site. With a median year built of 1939 or earlier (ACS 2020–2024), many jobs here are work on existing buildings, and the same OSHA rule applies.

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Updated 2026-10-13

Two blue portable toilets on bare dirt at a residential building site, with the timber frame of a new two-story house and a stack of lumber behind them.

Conditions at a Glance

3.7%of housing units built in 2010 or later (ACS 2020–2024)
85nights a year at or below 32°F (NOAA 1991–2020 normals)
17 inaverage yearly snowfall (NOAA 1991–2020 normals)

Climate figures: NOAA 1991–2020 normals from the St Louis Lambert Intl Ap, MO station, about 11 miles away.

Conditions for Job Sites

Building in Existing Neighborhoods

Only 3.7% of St. Louis's housing units were built in 2010 or later (ACS 2020–2024), under half the U.S. share of 11.4% and lower than most U.S. places in our data. Work on existing homes usually means an occupied house: put the crew's unit on the driveway or a side yard the truck can reach, so nobody walks through the home.

Older Homes and Remodels

The median year built for St. Louis's housing is 1939 or earlier (ACS 2020–2024), older than nine in ten U.S. places in our data. On older lots without a driveway or side yard, a remodel crew's unit may have to stand at the curb, which is a street-use question (see who to ask below). Interior work in occupied older homes is still construction work under OSHA 1926.51.

Apartments, Townhouses and Rentals

The most common housing type is detached houses, about 43% of units (lower than three in four U.S. places in our data), followed by two- to four-unit buildings at about 26% (ACS 2020–2024). Apartment and condo projects bring larger crews, and a property manager decides where units go. In small multi-unit buildings where tenants stay in place during work, put the crew's unit where it does not block a shared entrance. About 55% of occupied homes are renter-occupied (ACS; owner share lower than nine in ten U.S. places in our data), so property managers and landlords often book the units for renovations and decide where they stand.

DOE's Building America map puts St. Louis city in the Mixed-Humid climate region (IECC 2021 zone 4A, PNNL county guide). This region gets both a real summer and a real winter, so a July rental and a January rental need different planning.

Freezing Nights

About 85 nights a year reach 32°F or below, fewer than most U.S. places in our data, mostly between late fall and early spring. Freezing nights are routine in winter; ask whether the provider changes its service approach for winter job sites. Snow is light, about 17 inches in an average year.

Summer Hot Spells

About 47 days a year reach 90°F, more than most U.S. places in our data; hot spells come and go rather than lasting all summer. On hot-spell weeks, an extra service visit keeps units usable for the crew.

Lead-Safe Renovation

About 86% of housing units predate 1980 (ACS 2020–2024). Under OSHA’s lead standard (29 CFR 1926.62), workers exposed to lead need adequate hand-washing facilities, and EPA’s RRP Rule covers paint-disturbing work in homes built before 1978; add hand-wash stations to the order on those jobs.

How Many Toilets

OSHA 29 CFR 1926.51(c)(1) sets the minimum number of toilets on a construction site by headcount:

Number of employeesMinimum toilet facilities
20 or fewer1 toilet
20 or more1 toilet seat and 1 urinal per 40 workers
200 or more1 toilet seat and 1 urinal per 50 workers

Worked examples, rounding up as the table is usually read: 15 workers need 1 toilet. 45 workers need 2 toilet seats and 2 urinals (45 ÷ 40 = 1.125, rounded up to 2). 210 workers need 5 seats and 5 urinals (210 ÷ 50 = 4.2, rounded up to 5).

With so much multifamily housing here, a 45-person crew on an apartment or condo project is a realistic case: 2 toilet seats and 2 urinals.

Servicing frequency is set with the provider when you book; tell us headcount and shift length. OSHA's job-site toilet table has the full table.

Placement and Access

Put units on firm, level ground the service truck can reach, close to where crews work, clear of crane swing, excavation and vehicle routes, and move them as the work moves.

Federal OSHA or State Plan

Missouri is not an OSHA-approved State Plan state: federal OSHA covers most private-sector workers there (osha.gov State Plans, accessed 2026-10-13), so 29 CFR 1926.51 is the toilet rule for private job sites. State and local government workers are not covered by federal OSHA.

Who to Ask About Local Rules

St. Louis is an independent city: it is not part of any county, so the city government handles local rules that a county would elsewhere. For a unit placed in the street, on a sidewalk or in another public right-of-way next to the job site, ask the St. Louis city government before you book what applies.

If you rent your home, check with the landlord or property manager before a unit goes on the property. On attached or small multi-unit lots without a driveway, a unit at the curb is a street-use question for the St. Louis city government.

What to Ask For

  • Crew size at the busiest point and shift length (OSHA sets the minimum by headcount)
  • Rental term and service frequency
  • A spot on site the service truck can reach
  • Whether units need to move as the work progresses
  • Winter servicing and freeze protection for holding tanks

Construction Porta Potty Rental in St. Louis: Questions

How do I book job-site porta potties in St. Louis?

Call (888) 417-6737, answered 24/7, with the site address, dates and headcount. We connect you with a provider that serves St. Louis, and the provider confirms units, price, delivery, servicing and pickup. Tell us the units you want; the provider confirms what's available for your site.

How many toilets for a 45-person crew?

2 toilet seats and 2 urinals: 45 ÷ 40 is 1.125, rounded up to 2, which is the usual reading of OSHA's 1926.51 table. For comparison, 15 workers need 1 toilet and 210 workers need 5 seats and 5 urinals.

Does Missouri use federal OSHA or a State Plan?

Missouri is not an OSHA-approved State Plan state: federal OSHA covers most private-sector workers there (osha.gov State Plans, accessed 2026-10-13), so 29 CFR 1926.51 is the toilet rule for private job sites. State and local government workers are not covered by federal OSHA.

Can job-site units stay out all winter in St. Louis?

Yes, standard units have no running water to freeze, but with about 85 nights a year at or below 32°F, ask how the provider services them in winter and protects any hand-wash stations.

Don't know where to start?

Call now and tell us about your event or job site. We will help you work out the units you need and connect you with a provider that serves your location.

(888) 417-6737

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