Site services · Sourced through our provider network
A lockable room on site for drawings, meetings and a laptop that isn't balanced on a tailgate. We source container offices, office and storage combos and wheeled office trailers from local providers, and we keep the dates, the delivery and the bill in one place.
What you can rent
They all give you four walls, a door that locks, light and air. The difference is how they get to your site, what sits beside the desk and how high the floor ends up.
| Type | What it is | Good when | Plan for |
|---|---|---|---|
| Container office | A steel shipping container that's been framed, insulated and wired, with windows, a personnel door and a wall unit for heat and cooling. Usually 20 or 40 feet long and 8 feet wide. | You like steel walls, a short step up to the door and a footprint that fits a tight lot. | A level, firm pad and room for the truck that sets it. |
| Office and storage combo | One container with a wall inside: a finished office at one end and a lockable storage room behind the cargo doors at the other. | The same crew needs a desk and a place to lock up tools or materials. | Which end faces the road, so the cargo doors open where trucks can reach them. |
| Wheeled office trailer | An office built on a trailer frame with axles and a hitch. It's towed in, then leveled on site. | You need more floor space or more rooms than one container gives. | A tow path, a taller step up to the door, and stairs or a ramp to match. |
What we've placed
Container offices are most of what we book. They're 21 of the 34, set in 12 states by 18 different local providers, and our first one went out in July 2025. The rest are office and storage combos plus a few wheeled office trailers.
Updated October 29, 2026. Counts cover office units delivered October 26, 2024 through October 26, 2026, canceled orders excluded. Stay length runs from delivery to pickup on the 26 units that had gone back, 17 of them container offices. The middle half of those stays ran 55 to 118 days.
What that means for you: most site offices stay a season, not a week. About two and a half months is typical, and a quarter of them stayed 118 days or longer. If your job runs longer, say so up front, because it changes which provider and which unit makes sense.
What comes inside
Two manufacturers publish full specs for a 20 foot office built from a new container. They're a fair picture of what a provider will deliver. Your provider's unit may differ, so the quote is what counts.1
| Spec | Builder A | Builder B |
|---|---|---|
| Outside | 8 ft wide, 19 ft 10.5 in long, 8 ft 6 in high | 20 ft container, standard height |
| Inside | 7 ft wide, 18 ft 6 in long, 7 ft 4 in high | Insulated wall panels, 2 3/4 in thick |
| Electrical | 125 amp panel with a 60 amp exterior disconnect, six duplex 110 volt outlets | 125 amp breaker box, an exterior junction box, five plug outlets and one switched outlet |
| Heat and cooling | Through-wall unit, 15,000 BTU cooling and 3.5 kW heat | 8,000 BTU heat pump on 110 volts, with a 12,000 BTU, 220 volt upgrade |
| Windows | Three, 3 ft by 3 ft | Three 36 in sliders with security bars |
| Door | One 3 ft personnel door with a light beside it | One steel door, 3 ft by 6 ft 8 in, with a 3 hour fire rating |
| Lights | Two 4 ft LED fixtures | Two 4 ft fluorescent fixtures |
The same builder that makes the 20 foot combo also lists a 40 foot combo with a 16 foot office and 24 feet of storage.1 If you mostly need storage with a desk at one end, that's the layout to ask about. For storage alone, see storage container rental.
That 60 amp disconnect on the outside wall is where site power lands. A licensed electrician connects it, either to a temporary service or to a generator through a transfer switch. Our temporary power page covers both, with a calculator that adds up the watts.
Ask about the air unit. A 15,000 BTU through-wall unit and an 8,000 BTU one on 110 volts are very different in July. If your office will hold several people and computers, ask which one you're getting and what power it needs.
Office steps and ramp calculator
Measure from the ground to the top of the door threshold once the unit is set and leveled. This applies OSHA's construction stair rules and the 2010 ADA Standards ramp rules to that one number.
The rules behind the numbers
On a construction site, OSHA wants a stairway or ladder at any access point with a break in elevation of 19 inches or more, unless a ramp, runway, sloped embankment or personnel hoist is there instead.2 Once the stair has four or more risers or rises more than 30 inches, whichever comes first, it needs at least one handrail and a stairrail on each open side.3
Accessibility is a separate question. The 2010 ADA Standards say construction trailers and other structures tied to the actual process of construction don't have to comply or sit on an accessible route.4 A sales office, a leasing office or a field office the public walks into is different. If that's yours, check with the building department before the unit arrives, because the ramp is often longer than people expect.
ADA Standards sections 405.2, 405.5, 405.6, 405.7, 405.8, 505.2, 505.4 and 404.2.3.4
Before it arrives
Have these answers ready when you ask for a quote and the order moves faster.
Send the address, the dates, how many people will work in it, and whether you need storage too. Tell us how power will get there. We'll check which local providers have a unit for those dates.
Questions
A container office is a converted steel shipping container set on the ground. An office trailer is built on a frame with axles and a hitch and gets towed in. A trailer can give you more floor space and more rooms. A container sits lower and has steel walls.
In our network the median stay is 77 days, from delivery to pickup, and the middle half of stays ran 55 to 118 days. That's 26 units delivered between October 2024 and October 2026 that had already gone back.
Not under the 2010 ADA Standards when it's a construction trailer used for the work itself; section 203.2 exempts it. An office the public uses, like a sales or leasing office, is another matter, so check with the building department.
OSHA calls for a stairway or ladder when the step up is 19 inches or more and there's no ramp. Stairs with four or more risers, or that rise more than 30 inches, need a handrail and a stairrail on each open side.
The units we looked at have a 125 amp panel inside, and one has a 60 amp disconnect outside. A licensed electrician connects site power to it, or a generator does. Ask the provider for the exact connection on the unit you're getting.
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