What size mobile office trailer do I need?
It depends on headcount and how much desk space you need. A small mobile office trailer works for a 2 to 4 person crew running plans and paperwork off to the side of the site. Bigger jobs want more room: supervisors, safety staff and subs all need a place to sit. If you're also housing tools or files, pair the office with a 20ft storage container rather than cramming everything into one box. Some Denver contractors run the office trailer next to a construction dumpster and a bank of standard porta potties, keeping the whole support cluster in one corner of the lot. If the trailer includes a restroom, check the door and clearance specs against ADA restroom requirements if the site needs an accessible unit anywhere on the property. For sites without a wired restroom, most crews still lean on a porta john parked near the trailer entrance instead of plumbing one into the office itself.
Does a mobile office trailer come with a bathroom?
Some do, some don't. A mobile office trailer with bathroom is common on longer jobs where staff don't want to walk across a muddy lot to a portable restroom. If the unit you're renting doesn't include one, Denver Porta Pros sets a deluxe flushable porta potty or an ADA accessible porta potty right next to the trailer steps, which is usually faster and cheaper than upgrading the trailer itself. Under OSHA 1926.51(c), construction sites need toilet facilities scaled to headcount: one facility for 20 workers or fewer, then additional fixtures as the crew grows past 20 and again past 200. If the office trailer has running water, hand drying still needs to meet 29 CFR 1910.141(d)(2), which requires soap and towels or a hand-drying device, not just sanitizer. Crews debating a wired bathroom versus an outside unit can compare setups on the portable toilet rental page before deciding.
How much does a mobile office trailer cost to rent in Denver?
Pricing depends heavily on trailer size, condition and rental length, and it's worth asking your provider for a written quote rather than guessing from a used mobile office trailer sale listing online. Delivery adds a separate line item most renters don't budget for up front.
| item | day | week | month |
|---|---|---|---|
| delivery fee | $100 - $500 | $150 - $250 | $250 - $420 |
| storage container | - | - | $100 - $250 |
Delivery trucks need roughly 60 feet of straight clearance behind the unit to back in and set the trailer level, so tight urban lots in Denver sometimes need a site walk first. If your project also needs power, ask about a temporary power pole or a light tower for the yard around the trailer. Longer jobs, especially those running past a month, usually make more financial sense with a monthly agreement instead of rolling weekly rentals, similar to how monthly porta potty rental pricing works out cheaper than daily rates stacked over 30 days. For a full cost breakdown across unit types, see storage container rental cost.
What should I check before renting a mobile office trailer near me?
Weight and access matter more than most renters expect. Mobile office trailer weight varies by size and construction, and it affects what kind of ground the delivery truck can cross and where the trailer can legally sit relative to property lines and utility easements. Ask about the mobile office trailer interior layout too: desk space, wall outlets and whether the floor plan works for the number of people using it daily. If you're near a residential zone, some Denver neighborhoods require setback distances from the curb, so confirm placement with the city before delivery day. Renters near Glendale, 7.4 miles southwest of Denver, or Derby, 8.2 miles north, should note that delivery windows can shift depending on distance from the depot, so book early. If your project also needs perimeter security, look at temporary fence rental or chain link temporary fence to keep the trailer and adjacent equipment secured overnight. For sites running a full support yard, our construction site services page covers how trailers, dumpsters and restrooms get scheduled together.
How long can I rent a mobile office trailer for?
Most Denver jobs rent by the month, since construction and renovation timelines run longer than a week. Short-term rentals work too, for events or short punch-list jobs. Ask your provider whether a used mobile office trailer or a newer unit is available for your dates, since inventory shifts by season.
Can I rent a small mobile office trailer for a short project?
Yes. Small units work well for quick jobs like home renovation projects or short-term site supervision. They cost less to deliver and need less clearance than larger trailers, which helps on tight urban lots around Denver.
Do mobile office trailers need a permit in Denver?
Placement in the right of way or on certain lots may need city approval, and this needs confirming directly with Denver before delivery. Check porta potty permit requirements for a sense of how the city handles similar temporary equipment placement.
What's the difference between renting and buying a mobile office trailer?
Renting avoids the upfront cost of a mobile office trailer sale and gives you flexibility if the project timeline shifts. Buying makes more sense for companies running multiple long-term sites at once, where the trailer moves job to job for years.
Can I get power run to a mobile office trailer on site?
Yes, most sites pair the trailer with a temporary power connection. Ask about a temporary power pole alongside your trailer order so power's ready before the crew shows up on day one.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.