What Size Mobile Office Trailer Do I Need?
It depends on crew size and what you're storing besides desks. A small mobile office trailer, around 8 by 20 feet, fits a couple of desks, a plan table and a filing cabinet, which covers most residential jobs and small commercial sites around Great Falls. Bigger builds want more room to spread drawings and host a safety meeting without everyone standing shoulder to shoulder. If your project already has a construction dumpster and a temporary fence on order, the office trailer is usually the next call, since crews need a place to store paperwork, plans and a first aid kit out of the weather. Some renters ask about a mobile office trailer with bathroom built in. We can pair a trailer with a nearby restroom trailer rental or a standalone ADA accessible porta potty if the office unit itself doesn't have plumbing, and that combination covers OSHA 1926.51(c) toilet facility requirements for the crew without cramming extra fixtures into the office footprint. Weight matters for site planning too. A loaded mobile office trailer's weight affects where you can park it, especially on soft ground after Montana's spring thaw, so tell us your surface type when you request a quote.
How Much Does Mobile Office Trailer Rental Cost in Great Falls?
Pricing depends on trailer size, rental length and site access. A short-term rental for a walk-through or inspection period costs less than a month-long placement on an active job. Ask about weekend availability if you only need the space for a two-day push; we quote that separately from our day, week and month rates.
| duration | typical range |
|---|---|
| day | $175 - $2,500 |
| week | $150 - $1,650 |
| event | $2,499 - $3,899 |
These bands reflect the range across trailer types, from a bare-bones single unit to a fully outfitted mobile office enclosed trailer with heat, lighting and a small kitchenette. If you're comparing options, our restroom trailer rental cost page breaks down similar pricing logic for sanitation units, and the same delivery-distance math applies here. Delivery fees run separately and depend on how far outside Great Falls the site sits; jobs near Black Eagle, about 3.9 miles northeast, or Malmstrom AFB, 5.9 miles east, typically fall within our standard delivery zone.
Can I Rent a Used Mobile Office Trailer?
Yes, and it's usually the more budget-friendly option for short jobs. A used mobile office trailer costs less to rent than a newer unit, though interior condition varies more, so ask to see photos of the mobile office trailer interior before it ships if cosmetic condition matters for client-facing use. If you're leaning toward buying instead of renting, a mobile office trailer sale might make sense for a company running multiple sites year-round, but most Great Falls contractors on a single project find renting cheaper over a typical job timeline. We also handle storage container rental for job sites that need secure tool and material storage separate from office space; a 20ft storage container or 40ft storage container often sits alongside the office trailer on larger sites. If you search "mobile office trailer near me" and land here, know that we deliver throughout Great Falls and to nearby communities like Gibson Flats, 5.4 miles southeast, and Sand Coulee, 13.5 miles southeast.
What Comes With a Mobile Office Trailer Rental?
Every unit ships with basic power hookup capability, windows, a lockable door and a desk-ready interior, though exact features depend on which trailer you book. If your crew needs electricity beyond what the trailer's own hookup provides, especially for a light tower rental or additional tools, ask about a temporary power pole delivered alongside the office. Sites running paint, coatings or similar work should also plan for washing facilities under OSHA 1926.51(f)(1), which covers employees applying paints, coatings, herbicides or insecticides; that's separate from general sanitation needs. For general crew handwashing, 29 CFR 1910.141(d)2 requires soap and towels or a hand-drying device, not just sanitizer, so a standalone handwashing station rental or portable sink rental fills that gap if your office trailer doesn't have running water. Most of our office trailer customers are also renting a portable toilet rental or standard porta potty rental for the crew, since OSHA 1926.51(c) sets toilet ratios by headcount and an office trailer alone doesn't satisfy that requirement. Check our how many porta potties do I need guide if you're scoping a full site setup for a Great Falls job.
How long does delivery take once I book?
Most Great Falls deliveries happen within a day or two of booking, depending on trailer availability and site access. Confirm ground conditions and clearance ahead of time, since the trailer needs a clear, level path to its parking spot. Call ahead for rush jobs.
Can I put a mobile office trailer on gravel or dirt?
Yes, as long as the surface is stable and level enough to support the trailer's weight without shifting. Soft or muddy ground after a thaw can cause settling, so we sometimes recommend leveling pads. Tell us your surface type when booking.
Do mobile office trailers need a permit in Great Falls?
That depends on placement, especially if the trailer sits in a right of way or a shared lot. Confirm placement rules directly with the City of Great Falls before delivery. We can help position the unit once permitting is settled.
What's the smallest mobile office trailer available?
Our smallest units run around 8 by 20 feet, enough for a couple of desks and basic storage. That size suits most small residential or light commercial jobs. Larger crews should ask about bigger footprints when requesting a quote.
Can I rent an office trailer and a restroom trailer together?
Yes, and many Great Falls job sites do exactly that. Pairing an office trailer with a restroom trailer rental or a smaller 2 stall restroom trailer covers both workspace and sanitation in one delivery trip, which simplifies site logistics.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.