What size mobile office trailer do I need?
Depends on the crew and the paperwork. A small mobile office trailer works fine for one superintendent, a desk and a plan table. Bigger jobs, general contractors managing subs across a site, usually want room for a small conference area plus file storage. If you are pairing the trailer with construction site services like fencing and a dumpster, think about the whole footprint, not just the trailer pad. A mobile office trailer with bathroom saves your crew a walk across a muddy site, though most rental units on a jobsite still pair with a standard porta potty rental or an ADA accessible porta potty parked nearby for the rest of the crew, since OSHA 1926.51(c)(1) sets toilet ratios by headcount, not by whether the office trailer has its own restroom. For a crew of 20 or fewer, that is one facility; above that, the ratio climbs. We can help you figure counts using our how many porta potties do I need guide before your first delivery.
Mobile office trailer weight matters more than people expect. A loaded unit needs firm, level ground to sit on, and if your site has soft soil after rain, that is worth flagging before delivery day. We ask about ground conditions on every quote, the same way we do for a roll-off dumpster rental or a storage container rental, because a trailer parked wrong sinks a corner and throws the whole unit out of level.
Can I rent a mobile office trailer near me in Gastonia?
Yes, and we deliver across Gastonia plus the towns around it. We have run mobile office trailer rental jobs as close as 4.5 miles northeast in Springdale and as far as 15.3 miles northeast in Mount Holly. Belmont sits 11.4 miles east and Kings Mountain 11.4 miles west, both within normal delivery range, and Spencer Mountain is a short 7.0 mile trip northeast of Gastonia. If your project sits outside those towns, check our service areas page or just call, since most sites within that radius are a same-week delivery.
Access matters as much as distance. A trailer delivery needs clear, firm ground for the truck to back in, similar to the roughly 60 feet of straight clearance a roll-off dumpster rental truck needs behind it. Tight urban lots in Gastonia sometimes need a site walk first. We will tell you straight if your driveway or lot needs adjusting before delivery day, rather than showing up and finding out the truck cannot swing in.
How much does a mobile office trailer rental cost?
Pricing depends on trailer size, rental length and how far we travel to deliver. Short-term jobsite trailers and event-style trailers price differently, and delivery is billed separately from the rental itself. Below is what we can quote confidently based on our own rental data, broken out by duration.
| item | day | week | month |
|---|---|---|---|
| trailer rental | 175 to 2500 | 150 to 1650 | quote on request |
| delivery fee | 100 to 500 | 50 to 150 | 120 to 420 |
| service fee | 100 to 300 | 30 to 220 | 100 to 300 |
Longer stays generally cost less per day than a one-off weekend rental, which is why most construction jobsites book by the month instead of day-by-day. If you are comparing costs across other equipment on the same site, our dumpster rental cost and storage container rental cost pages break down similar per-day-versus-per-month math. And if what you actually need is restroom capacity rather than office space, look at restroom trailer rental or the restroom trailer rental cost page instead, since those are priced and built differently from an office unit.
Does a mobile office trailer come with power and a bathroom?
Most units arrive as a shell, and power hookup is the customer's responsibility unless you ask us about options up front. If your site does not have power run yet, ask about a temporary power pole or a light tower rental for the surrounding work area. A mobile office trailer interior typically includes basic flooring, wall paneling, a desk-height counter and window units, but a mobile office trailer with bathroom is a separate spec and not standard on every trailer we carry, so confirm that when you request a quote.
If your crew is doing painting, coatings or any work with herbicides or insecticides nearby, OSHA 1926.51(f)(1) requires washing facilities for that specific work, and a handwashing station rental or portable sink rental covers that need better than relying on the trailer's interior sink. General jobsite sanitation still falls under OSHA 1926.51(c), separate from the office trailer itself. For projects needing secure document or equipment storage alongside the office, a 20ft storage container or 40ft storage container sits well next to a trailer pad and locks separately.
Frequently asked questions
Can I buy a mobile office trailer instead of renting?
We focus on rental, not mobile office trailer sale. Used mobile office trailer units do turn up on the resale market, but ownership means you handle maintenance, storage between jobs and resale later. For a project with a defined end date, renting from Gastonia Porta Pros avoids that.
How long can I keep a mobile office trailer rented?
As long as your project runs. Rentals scale from weekly to monthly, and monthly typically comes out cheaper per day than booking by the week. Tell us your estimated timeline when you request a quote so we can price it right the first time.
Does the trailer need a permit to sit on my Gastonia site?
Placement in the right of way or on certain lot types may need city confirmation, and that is not something we can generalize without checking your specific address. Call the city directly or ask us and we will help you sort out what applies.
What is the mobile office trailer weight limit for my site?
It varies by trailer size and configuration, so we assess ground conditions and axle specs per unit during the quote call. Soft or sloped ground changes what we recommend before delivery.
Can I get a small mobile office trailer for a short renovation job?
Yes. Smaller units suit short renovation and remodel work well. Check our home renovation porta potty page too, since most renovation sites need both an office trailer and restroom coverage running at the same time.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.