
Office & Storage Combo Containers — Montana, Wyoming & North Dakota
One container. Two functions. Office-storage combo units split a single steel container between a finished, climate-controlled office on one end and a secure, lockable storage bay on the other — giving your job site both a workspace and a tool room in a single footprint.
Mobile-Stor builds and rents combo units across Montana, Wyoming, and North Dakota. Whether you're running a construction site, managing a remote oilfield location, or need a supervisor's office next to a parts lockup, a combo unit puts everything in one place.
Built for the Job Site
Combo units arrive painted, insulated, wired, and ready to connect to power. The office end comes finished with HVAC, lighting, and outlets. The storage end is open, dry, and lockable — ready for tools, equipment, or materials.


Who Uses Combo Units?
Construction Job Sites
Keep the foreman's office and the tool lockup in one container. No more separate deliveries — one unit handles both.
Oilfield & Energy Operations
Remote locations need both a safe working environment and a secure place to store parts, PPE, and equipment. A combo unit covers both.
Contractors & Trades
Roofing, electrical, or plumbing contractors who need a field office at a long-running project and a place to lock up gear overnight.
Businesses Needing Overflow
Need temporary workspace plus storage during a renovation or expansion? A combo unit drops in the parking lot and solves both problems at once.
Office & Storage Floor Plans
Compare overall dimensions and office-to-storage splits. Open any plan to review doors, windows, counters, electrical service, insulation, security features, and climate-control details.

OS-326
8′ × 24′ · 12′ office / 12′ storage

OS-365
8′ × 28′ · 12′ office / 16′ storage

OS-362
8′ × 40′ · 24′ office / 16′ storage

OS-360
8′ × 40′ · 32′ office / 8′ storage
Floor plans are representative. Availability and interior configurations may vary by unit.
Compare Office & Storage Sizes
See real exterior, office, workstation, and storage-bay photos from two different combo layouts.
OS-362 — 8′ × 40′
This 24′ office / 16′ storage layout combines a large, climate-controlled workspace and built-in workstation with a separate secure storage bay.




OS-365 — 8′ × 28′
This 12′ office / 16′ storage layout provides a compact finished workspace with a built-in workstation and a full-length secure storage bay.





Office & Storage Combo Questions
What exactly is an office and storage container?
It's a standard shipping container that's been modified to include a finished office section at one end and an open storage bay at the other — all in one unit. You get a lockable, climate-controlled workspace and a secure storage area without needing two separate rentals.
Can I choose the ratio of office space to storage space?
The split varies by unit — typically around 25–30% office and 70–75% storage on a 40-foot container. If you have specific ratio requirements, call us and we'll find the unit that best fits your needs.
Do these units have electrical and climate control in the office section?
Yes. The office section includes electrical wiring, lighting, and HVAC — everything you'd expect in a working office. The storage bay is unheated. You'll need a standard power hookup on-site.
How is this different from renting a mobile office and a shipping container separately?
A combo unit saves space, saves cost, and means a single delivery and pickup. It's the right choice when your crew needs both office and storage right next to each other on the same job site.
Is this available as a month-to-month rental?
Yes. We offer flexible rental terms — month-to-month is standard. No long-term commitment required. Return it when your project wraps up and we'll handle the pickup.
