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Tank and Pump


Customer Care

Storage: 800.456.1751

Tank and Pump: 888.600.8265

40ft Mobile Ground Level Offices

Our largest open floor plan mobile office provides easy ground-level access, so you won’t need steps or ramps. This all-steel, portable office has no interior dividers or walls, and can be organized for multiple entrances for additional flexibility. It’s an ideal option for large job sites that need to secure sensitive job and project paperwork and supplies. 

High Security Office
40ft Office Floorplan
High Security Office thumbnail
40ft Office Floorplan thumbnail

The World's Toughest, Secure Portable Office Solution

High-Security Door System

Each mobile security office features easy-opening interior doors with a three-point interior locking system and D-ring plus discus lock, adding an extra level of security. 

  • 16-gauge door skin & welded door frame
  • MMI patented bolt lock technology
  • Heavy duty welded hinge system

Ground Mounted
8’ ceiling height
8’ wide
40’ box size
40’ long

Exterior Finish
All steel structural components
1 ⅛” plywood sub floor
Standard drip rail gutters
10-16 gauge floor; Joist 12
16-gauge steel siding

Interior Finish
Drywall textured flat ceiling
Vinyl tile floors
Drywall textured walls

Windows and Doors
2 High security door system with three-part interior locking system
Hydraulic door closures
Mini blinds
Exterior security
Horizontal slider windows with screens

A clearance of 120’ is required for our and 40’ containers. Our trucks require a 21’ vertical clearance for loading and unloading containers. We can provide a free site check, where one of our drivers will come out and determine the most appropriate location.


Get all your Specs here!

Heating and Cooling
2 Vertical HVAC

Exterior phone / data jack access
120/240 Volt, single-phase
125 amp breaker panel
Fluorescent ceiling lights
Requires a 30kW Generator (Not Included) or Connection to a Power Line

Whether you need one unit or a hundred across the country, our dedicated drivers will swiftly and carefully deliver your unit directly to your door, and help you find the safest and most convenient place to put it on your site. They can even help show you how to use the specific features on your unit if you need assistance. Because we own trucks we are a reliable and cost-effective solution.

For customers with long-term logistical needs, we can relocate your empty office to your next jobsite. This additional solution makes us more flexible and responsive to meet your needs. It can also means extra savings for you.

Returning your unit is just as convenient. Schedule your pick-up on the MM Connect™ customer portal or give us a call. 

Mobile Mini National Accounts
Synchronize your supply chain across the US through our National Accounts Program. You’ll get preferred pricing and hassle-free access to the largest selection of products. With over 150 locations, we are one of the only companies in our industry with a national footprint to meet your storage needs nearly anywhere.

Step into the Driver’s Seat
MM Connect™, our state-of-the-art customer portal puts the power in your hands to see all products on rent, locations, and costs in one view, on demand. Easily request service, pickups, and relocations, while accessing your account information in real-time.