A mobile office trailer gives a construction crew or event team a dry, lockable space for paperwork, planning and breaks. St. Louis Porta Pros delivers units sized from a small single-room office to multi-room layouts, and most jobsites need clearance similar to the 60 feet of straight run our roll-off trucks require. Rent by the month or ask about a used mobile office trailer for longer projects.
Depends on crew size and how you'll use it. A small mobile office trailer works fine for a foreman and a desk of blueprints on a residential remodel. Bigger commercial jobs, especially ones running construction site services with multiple trades on site, usually want a trailer with a separate meeting area plus storage.
The mobile office trailer interior typically breaks into a work zone and a storage or supply closet, and some units come as a mobile office trailer with bathroom built in, which cuts down on foot traffic to your portable restroom rental units elsewhere on site. If you are pairing the office with sanitation for a crew of twenty or fewer, OSHA 1926.51(c)(1) sets the baseline for toilet counts on construction sites, and that number should shape how many restrooms sit near the office trailer. For crews spread across a bigger footprint, our standard porta potty rental page breaks down count by headcount.
If you're also storing tools or materials, a 20ft storage container or 40ft storage container sits well next to the office trailer without eating your working footprint. Weight matters here too. Mobile office trailer weight varies by length and build-out, and that number affects what kind of ground you can park on and whether a permit applies for placement.
Yes. St. Louis Porta Pros delivers mobile office trailers across St. Louis and into nearby communities, including University City about 7.9 miles northwest and Webster Groves roughly 8.6 miles southwest. We also reach Kirkwood at 12.5 miles west and Florissant at 15.4 miles north, so a jobsite anywhere in that radius is a normal delivery, not a special trip. Check the service areas page for the full list, including Chesterfield 19.2 miles west and St. Peters 27.0 miles northwest.
Placement in the public right of way needs confirming with the city before delivery day. We do not guess at that rule on your behalf, so ask us and we'll walk you through what the site plan needs. Ground has to be level and firm enough to support the trailer's full weight, which matters more once you factor in furniture, equipment and anyone working inside. If your project also needs a temporary fence rental or chain link temporary fence around the trailer for security, we can schedule that delivery alongside the office unit.
Renovation and remodel crews often start smaller. If you're weighing a home renovation porta potty against a full office trailer, the deciding factor is usually how many people need desk space versus just a bathroom on site.
Monthly rates depend on trailer size, interior build-out and how far we have to haul it. A storage container runs in the range shown below if you just need lockable space without an office interior, and it's a useful comparison point when you're deciding between storage and a full office trailer.
| unit | duration | typical price |
|---|---|---|
| storage container | month | $125 |
| dumpster | month | $108 |
| standard porta potty | month | $200 |
Delivery fees run separately from the trailer rate and scale with distance and scheduling. See storage container rental cost for a closer look at how monthly pricing compares across unit types, and dumpster rental cost if you're stripping out an old trailer or clearing site debris before the new one arrives.
Not always, but most jobsites pair the two. If the office trailer doesn't have a built-in bathroom, you'll want a restroom close by, and ADA Standards section 213.2 requires that when portable toilets are clustered on a site, at least one accessible unit sits in that group. Our ada accessible porta potty page covers what that unit needs, including a 60 inch turning circle per ADA Standards section 304.3.1 and a 32 inch clear door opening per ADA Standards section 404.2.3.
For crews handling paint, coatings, herbicides or insecticides near the office trailer, OSHA 1926.51(f)(1) requires washing facilities specific to that work, separate from general toilet counts. A handwashing station rental or portable sink rental covers that requirement, and 29 CFR 1910.141(d)(2) is clear that soap and a way to dry hands has to be part of the setup, not sanitizer alone.
Longer projects in St. Louis sometimes need septic support too, especially if the office trailer's bathroom ties into a holding tank rather than a sewer line. Our holding tank rental and septic pumping service pages cover that side of things if your setup calls for it.
Most rentals run month to month, which fits typical construction timelines better than short-term rates. Longer jobs get better per-month value than switching trailers mid-project. Ask about a used mobile office trailer if your project runs six months or longer.
We focus on rental, not mobile office trailer sale. Renting avoids maintenance costs and lets you swap sizes as the project scope changes, which is common on multi-phase builds around St. Louis.
A small mobile office trailer suits one or two people managing paperwork. Once you've got a site super, subcontractors and regular client walkthroughs, a larger unit with a meeting area earns its footprint.
Placement in the right of way needs confirming with the city before delivery. On private property, requirements vary by site, so check with us and we'll help you sort out what applies.
It needs a level, stable surface rated for the trailer's full loaded weight. We'll ask about your ground conditions before scheduling delivery so the site's ready when the truck arrives.
Yes. St. Louis Porta Pros delivers mobile office trailer rental across St. Louis and the surrounding metro, with same-day and next-day drop-off available on most orders.
Pricing depends on the unit and how long you need it. See our cost breakdown and request a free quote for an exact figure.
Standard rentals include scheduled service — a pump-out, a clean, a restock and fresh deodorizer. Busy or hot-weather sites can be serviced more often.
Call now or request a free quote — clean units, on-time delivery, transparent pricing.
