Conditions at a Glance

25.8%of housing units built in 2010 or later (ACS 2020–2024)

65nights a year at or below 32°F (NOAA 1991–2020 normals)

5 inaverage yearly snowfall (NOAA 1991–2020 normals)

Climate figures: NOAA 1991–2020 normals from the Raleigh Durham Intl Ap, NC station, about 8 miles away.

Conditions for Job Sites

New Housing

About 25.8% of Cary's housing units were built in 2010 or later (ACS 2020–2024), about 2.3 times the U.S. share of 11.4% and higher than nine in ten U.S. places in our data. Projects that build in phases can move units as each phase finishes; ask for relocation as a service visit when you book.

Housing Mix

The most common housing type is detached houses, about 59% of units (lower than most U.S. places in our data), followed by buildings with five or more units at about 24% (ACS 2020–2024). Detached houses usually have a driveway or yard where a crew's unit can stand within reach of the service truck. Apartment and condo projects bring larger crews, and a property manager decides where units go. About 33% of occupied homes are rented (owner share lower than most U.S. places in our data), so check who controls the property before a unit goes on it.

DOE's Building America map puts Wake County in the Mixed-Humid climate region (IECC 2021 zone 3A, 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.

Summer Hot Spells

About 52 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.

Freezing Nights

About 65 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 5 inches in an average year.

How Many Toilets

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

Number of employees	Minimum toilet facilities
20 or fewer	1 toilet
20 or more	1 toilet seat and 1 urinal per 40 workers
200 or more	1 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).

On a subdivision with three crews of 15 working at once, count all 45: that is 2 toilet seats and 2 urinals, not one unit per crew.

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.

Rain and Ground

About 46 inches of precipitation falls in an average year, spread over many moderate rain days rather than a few downpours. On muddy job sites, put units on gravel or a firm pad near the site entrance so the service truck does not get stuck, and move them if the ground around them washes out.

Federal OSHA or State Plan

North Carolina runs an OSHA-approved State Plan, North Carolina Occupational Safety and Health (NC OSH) Division, North Carolina Department of Labor, that covers most private-sector workers as well as state and local government workers (osha.gov State Plans, accessed 2026-10-13). State Plans must be at least as effective as federal OSHA, so check the State Plan's construction sanitation rule alongside 29 CFR 1926.51.

Who to Ask About Local Rules

Cary is an incorporated town with its own municipal government. For a unit placed in the street, on a sidewalk or in another public right-of-way next to the job site, ask the Cary town government before you book what applies.

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
A gravel pad near the site entrance

Related Rentals

Construction Porta Potty Rental Nearby

Construction Porta Potty Rental in Cary: Questions

How do I book job-site porta potties in Cary?

Call (888) 417-6737, answered 24/7, with the site address, dates and headcount. We connect you with a provider that serves Cary, 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 North Carolina use federal OSHA or a State Plan?