Bismarck Porta Pros rents mobile office trailers starting around $175 a day, with monthly terms built for construction crews, event staff and jobsite supervisors who need a real desk on site. Trailers range from small single-room units to bigger multi-room layouts, and most go out with steps and tie-downs included. Pair one with a restroom trailer rental and you have a functioning satellite office by morning.
Most one or two person jobsite offices work fine in a small mobile office trailer, the kind a foreman uses for plan review and a phone line. Bigger crews doing project management for a multi-building site want something closer to a full mobile office enclosed trailer with a conference table and separate storage. If you are running a construction project in Bismarck with 15 or more people rotating through, the same headcount logic that sets your portable toilet requirements under OSHA 1926.51(c)(1) applies to office space: more bodies, more square footage, more traffic in and out. Think about what has to fit inside, not just how many people sit at desks. Plan tables, filing cabinets, a small server rack and a place to hang wet gear all eat floor space fast. A lot of Bismarck contractors pair a mobile office trailer with a storage container rental or a 20ft storage container parked alongside, so tools stay out of the office and the trailer stays a workspace instead of a warehouse.
Some units come with a built-in restroom, but most rental fleets, ours included, keep the office and the restroom as separate equipment. A mobile office trailer with bathroom plumbing means holding tanks, fresh water lines and winterization gear all riding inside the same box, which adds weight and cost fast. It is usually cheaper and more reliable to run a standalone portable restroom rental or a 2 stall restroom trailer next to the office trailer instead. That setup also makes it easier to service the restroom without anyone walking through your office to reach it. If your crew includes women and men working the same shift, an ADA accessible porta potty placed near the office trailer keeps the site compliant with ADA Standards section 213.2, which requires at least one accessible unit in any cluster of single-user toilets. For handwashing near the office entrance, a lot of supervisors add a unit from our handwashing station rental line rather than build plumbing into the trailer itself.
Pricing depends on trailer size, term length and what's inside it, so get a written quote through request a quote before you commit. Delivery is its own line item, and a short rental period costs less overall than a long one, though the daily rate on a short job runs higher per day than a monthly lease. Below is a general shape of how trailer costs scale with rental length, similar to what you would see comparing a restroom trailer rental cost across day, week and month terms.
| duration | typical range |
|---|---|
| day | $175 to $2,500 |
| week | $150 to $1,650 |
| event | $2,499 to $3,899 |
Delivery fees on top of the trailer typically run $100 to $500 for a single day drop, or $120 to $420 if you're keeping the unit for a month. Ask about that separately when you call, since it is rarely bundled into the headline trailer price. If you are also renting a dumpster for site cleanup, our dumpster rental cost page breaks down the day, week and month bands the same way.
A used mobile office trailer can save money upfront if you are buying rather than renting, but weight and access still matter the same way they do on a new unit. Mobile office trailer weight varies by length and construction, and it affects what tow vehicle you need and where the trailer can sit on soft ground. If you are weighing a purchase against a rental for a short Bismarck job, run the numbers against our mobile office trailer rental rates first, since a rental avoids maintenance, storage between jobs and resale hassle entirely. For most contractors doing one project at a time, renting wins. A mobile office trailer interior on a used unit also tends to show wear in the flooring and wiring faster than a well-kept rental fleet unit, so inspect closely before you buy. Delivery access matters either way: give the driver roughly 60 feet of straight clearance behind the truck to back a trailer in cleanly, the same clearance our drivers ask for when delivering a roll-off dumpster rental to a tight lot. Sites near Mandan, about 7.4 miles west of Bismarck, and Lincoln, 7.7 miles southeast, get the same delivery standards we use downtown.
Bismarck Porta Pros delivers mobile office trailers across Bismarck and out to the closer service towns, including Apple Valley about 9.2 miles east and Menoken 14.4 miles east. If your project sits farther out toward Harmon, roughly 17.2 miles northwest, tell us at booking so we can route delivery accordingly. Check our full service areas list, or start with porta potty rental in Bismarck if you're bundling office trailer service with sanitation for the same jobsite. For construction-specific bundles covering dumpsters, fencing and toilets together, see construction site services.
Rental terms run from a single day up to open-ended monthly terms that renew as long as the project runs. Most construction jobs book monthly and extend as needed. Short weekend or single-day rentals exist for inspections, temporary staffing or event command posts, priced separately from the weekly and monthly bands.
Placement rules depend on where the trailer sits, especially near a public street or sidewalk. NOT VERIFIED for permit specifics here, so confirm placement with the City of Bismarck before delivery. Our porta potty permit requirements page covers a comparable placement question for sanitation units.
Layouts vary by size, but expect a desk area, overhead lighting and basic electrical outlets as a baseline. Bigger units add conference space and separate rooms. Ask about your specific unit's mobile office trailer interior layout when you request a quote, since fleet units differ.
Yes. Many jobsites without utility hookups pair the trailer with a temporary power pole or run a generator, and GFCI protection under OSHA 1926.404(b)(1)(ii) still applies to any temporary wiring on site.
It helps. Keeping tools and materials in a 40ft storage container or smaller unit frees the office trailer for actual desk work instead of gear storage, and it keeps foot traffic and dust out of the workspace.
Yes. Bismarck Porta Pros delivers mobile office trailer rental across Bismarck 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.
