(970) 493-5536
What Makes This 20ft Portable Office Container Stand Out
This is not an empty box. Every 20ft mobile office ships with a full interior build-out. You get insulation, climate control, lighting, outlets, and finished walls from day one.
The container’s steel frame meets ISO standards for strength and stackability. Ground-level access means your crew walks in at grade, which reduces slip-and-fall risk compared to raised office trailers. A roll-back truck handles delivery, so you skip the crane rental.
FCMS has served Northern Colorado for over 40 years. We keep 80+ containers on our 12-acre facility and deliver with our own professional drivers.
A 20ft mobile office gives your team a secure, climate-controlled workspace on any job site. This ground-level office (GLO) sits directly on the ground. No stairs. No ramps. No setup delays. Just a ready-to-use office delivered to your location across Colorado, Wyoming, or Nebraska.
Fort Collins Mobile Storage builds each unit from a 20ft ISO shipping container made of CORTEN steel. The result is a 160 sq ft portable office that handles Colorado’s harsh weather and moves with your project.
⚠️ Limited Stock. Available for Pre-Order. Inventory is limited. Request a free quote or call us at (970) 493-5536 to check availability
Exterior Features and Build Quality
The shell starts with a one-trip, 20ft ISO CORTEN steel shipping container. CORTEN steel resists rust and stands up to years of outdoor exposure. Here is what the exterior includes:
- Corrugated CORTEN steel panels with anti-corrosive exterior paint
- One 36-inch steel personnel door with deadbolt and security bar
- Two steel-framed windows (approximately 32″ x 36″) with security bars
- Forklift pockets for easy repositioning on site
- ISO corner castings for crane lifting and stacking
- Weather-sealed construction rated wind-tight and water-tight
The exterior keeps its standard container profile. That means it fits on a standard parking space and travels on a roll-back truck without oversize permits.
Interior Features Built for Daily Work
Step inside and you get a finished workspace ready for desks, filing cabinets, and daily operations. The interior includes:
- 2-inch closed-cell spray foam insulation for year-round thermal control
- Finished interior wall panels (vinyl-wrapped or prefinished board), easy to clean and durable for job site use
- Commercial-grade vinyl flooring rated for heavy foot traffic
- LED overhead lighting across the full ceiling
- HVAC window unit (8,000 to 18,500 BTU depending on configuration) for heating and cooling
- 100-amp electrical service panel with 240V entrance
- Multiple interior outlets spaced for office equipment
- 50-amp generator inlet for off-grid power capability
- Exterior LED floodlight for nighttime security
The 160 sq ft layout accommodates a team of two to four. Most buyers add desks, chairs, shelving, and a small filing station. The open floor plan keeps the layout flexible.
Container Dimensions and Specifications
| Spec | Measurement |
| Exterior Length | 20 ft |
| Exterior Width | 8 ft |
| Exterior Height | 8 ft 6 in |
| Interior Length | ~19 ft 1 in |
| Interior Width | ~7 ft 3 in |
| Interior Height | ~7 ft 7 in |
| Usable Floor Space | ~160 sq ft |
| Approximate Weight | ~5,900 lbs |
| Construction | One-trip ISO CORTEN steel |
| Insulation | 2″ closed-cell spray foam |
| Electrical | 240V / 100-amp panel |
| HVAC | 8,000 to 18,500 BTU (heat + A/C) |
Specifications reflect standard industry configurations. Contact us to confirm exact specs for current inventory.
Who Buys a 20ft Mobile Office
A portable container office fits dozens of use cases. Here are the most common reasons our customers buy a 20ft unit.
Construction site offices. General contractors and project managers use these as field offices. Ground-level entry keeps them ADA-friendly and accessible to every crew member. The steel frame handles the wear and tear of active sites.
Remote work and temporary offices. Businesses running renovations, expansions, or relocations buy a container office as a bridge workspace. It shows up ready to use and leaves when the project ends.
Church and nonprofit offices. Organizations that need affordable admin space on owned land find a 20ft container office practical. It costs a fraction of a permanent build and requires no foundation.
Retail pop-ups and seasonal operations. Farms, event companies, and seasonal retailers use container offices as on-site command centers during peak months.
Disaster relief and emergency management. Agencies and organizations set up field offices quickly after storms, floods, or fires. The container ships fast and works off generator power.
Need a larger workspace? Check out our 40ft mobile office for sale, which pairs a 16-foot office with dedicated storage space in a single unit. Prefer to rent instead of buy? See our container rental options with flexible monthly terms.
Delivery Across Colorado, Wyoming, and Nebraska
Fort Collins Mobile Storage delivers from our facility at 311 N US Highway 287 in Fort Collins, CO. We serve the entire Front Range, the Colorado mountains, southern Wyoming, and western Nebraska.
Our drivers handle placement. You provide a level surface that supports the container’s weight, roughly 6,000 lbs. No crane needed. The roll-back truck places the unit at ground level.
Delivery timelines depend on your location and current inventory. Contact us for a delivery estimate to your site.
Browse our full selection of shipping containers for sale or explore storage container rentals if you need flexible, short-term solutions.
Frequently Asked Questions
What comes included with the 20ft mobile office?
Every unit ships with insulation, HVAC, electrical wiring, LED lighting, finished interior walls, commercial vinyl flooring, a steel personnel door with deadbolt, windows with security bars, and an exterior floodlight. You receive a turnkey office, not a bare container.
What power source does the mobile office need?
The unit requires connection to an on-site electrical source (240V). It also includes a 50-amp generator inlet for locations without grid power. Once connected, the HVAC, lighting, and outlets function like any standard office.
How is the mobile office delivered?
We deliver on a roll-back truck. The driver tilts the bed and places the container directly on the ground. You need a level surface and approximately 70 feet of clearance for the truck and trailer. No crane or forklift is required.
Can I move the office to a different location later?
Yes. The container keeps its ISO corner castings and forklift pockets. A roll-back truck, forklift, or crane can relocate it. Many buyers move their office between project sites over the life of the unit.
Do I need a permit for a container office?
Permit requirements vary by city and county. Some jurisdictions treat container offices as temporary structures with no permit needed. Others require a placement or building permit. Check with your local building department before delivery.
What is the difference between a mobile office and an office trailer?
A mobile office (also called a ground-level office or GLO) sits directly on the ground. There are no stairs, ramps, or elevated platforms. Office trailers sit on a raised chassis and require steps. Container offices are more secure, more weather-resistant, and easier to relocate.
Can I customize the interior layout?
Contact us about customization options. Common requests include partition walls, additional windows, upgraded electrical panels, and extra outlets for server or IT equipment.
How does buying compare to renting?
Buying makes sense for long-term needs (12+ months) or permanent placement. Renting works better for short-term projects or seasonal use. We offer both options. See our mobile office rentals to compare.
⚠️ Pre-Order Disclaimer Mobile offices are available for pre-order. Inventory is limited and subject to availability. Contact Fort Collins Mobile Storage for current stock levels and estimated delivery timelines. Specifications may vary by unit. Final pricing depends on configuration, delivery location, and availability.
Ready to secure your 20ft mobile office?
