Conex Containers in Denver
Military-grade steel boxes engineered for heavy-duty storage and extreme Colorado conditions
What Is a Conex Container?
The conex container traces its roots to the U.S. military’s Container Express program, which standardized portable storage and shipping units for rapid field deployment around the world. That same rugged engineering carries forward in every conex box we sell today. Built from heavy-gauge corrugated Corten steel, these containers are designed to survive ocean crossings, combat zones, and decades of hard use while keeping their contents dry and secure. Denver property owners and businesses choose conex containers when durability and security matter more than cosmetic appearance.
Heavy-Duty Performance for Colorado’s Toughest Conditions
Colorado throws everything at outdoor storage: afternoon hail storms along the Front Range, heavy spring snow in the foothills, sustained wind gusts on the eastern plains, and daily temperature swings of 40 degrees or more. A conex container handles all of it without flinching. The self-healing Corten steel exterior actually gets stronger as its protective rust patina develops, and the marine-grade door gaskets keep moisture out even when snow drifts pile against the doors. Ranchers in Elbert County, contractors in Commerce City, and mountain property owners in Evergreen all rely on conex boxes as their primary outdoor storage solution.
Choosing the Right Conex for Your Needs
We stock conex containers in 20ft and 40ft lengths, in both standard and high cube heights. The 20ft standard is the most popular for residential properties and single-trade contractors because it fits on a standard driveway and holds roughly 1,170 cubic feet of gear. The 40ft high cube is the workhorse for commercial operations, offering over 2,700 cubic feet of enclosed space with nearly nine feet of interior headroom. Both sizes feature forklift pockets, top and bottom corner castings, and a reinforced lock box as standard.
From Military Surplus to Modern Workhorse
While the conex name carries military heritage, these containers have evolved into one of the most versatile steel structures you can buy. Denver-area customers use them as secure equipment vaults on construction sites, climate-resistant storage for ranch supplies east of the metro, inventory overflow for small businesses, and even as the structural shell for workshops and studios. The combination of affordability, security, and zero-maintenance durability makes a used conex container one of the smartest investments for anyone who needs serious storage in Colorado.
Why Choose Conex Containers for Sale in Denver, CO
Quality and reliability backed by our 30-day guarantee
14-Gauge Corten Steel Construction
Tamper-Proof Lock Box System
Withstands 100+ MPH Wind Loads
Forklift & Crane Accessible
Rated for Stacking 9 Units High
Container Specifications
All sizes available for immediate delivery across the Denver metro area
| Container | Exterior (L x W x H) | Interior (L x W x H) | Floor Area | Volume | Max Payload |
|---|---|---|---|---|---|
| 20ft Standard | 20'0" x 8'0" x 8'6" | 19'4" x 7'8" x 7'10" | 148 sq ft | 1172 cu ft | 47,900 lbs |
| 20ft High Cube | 20'0" x 8'0" x 9'6" | 19'4" x 7'8" x 8'10" | 148 sq ft | 1390 cu ft | 47,180 lbs |
| 40ft Standard | 40'0" x 8'0" x 8'6" | 39'5" x 7'8" x 7'10" | 304 sq ft | 2390 cu ft | 57,870 lbs |
| 40ft High Cube | 40'0" x 8'0" x 9'6" | 39'5" x 7'8" x 8'10" | 304 sq ft | 2700 cu ft | 57,475 lbs |
Common Use Cases
Versatile solutions for Denver homes and businesses
Equipment & Tool Security
Protect high-value tools, machinery, and gear behind 14-gauge steel walls and a reinforced lock box. Conex containers are the go-to solution for contractors and trades across the Denver metro.
Agricultural & Ranch Storage
Colorado ranches and farms rely on conex boxes to shelter feed, tack, equipment, and supplies from harsh mountain weather, hail, and wind without electricity or climate control.
Government & Military Surplus Use
Originally designed for military logistics, conex containers remain the standard for government agencies, emergency management, and field operations requiring rapid deployment.
Remote Jobsite Deployment
Drop a conex container on any cleared pad in the foothills or plains. No foundation required for temporary use, and the corner castings allow easy repositioning with standard equipment.
Available Containers
Inspected, guaranteed, and ready for delivery across Denver and the Front Range
What Our Customers Say
Real projects from real Colorado customers
"Bought a 40ft High Cube for our tiny home conversion in the backyard. The container was in fantastic shape -- barely any surface rust and all doors sealed …"
Marcus T.
Denver, CO
"We converted a 20ft container into a guest suite for my parents. The whole process from quote to delivery took less than a week. The container was cargo-worthy …"
Sarah K.
Aurora, CO
"I have been wanting a proper workshop for years but could not justify the cost of a new building. Got a 40ft standard container and it has been amazing. …"
James R.
Lakewood, CO
Frequently Asked Questions
Ready to Get Started?
Tell us about your project and we'll match you with the right container at the right price