What is a Conex box? Wondered whether a Conex storage unit is right for your project? The term Conex has deep roots in the shipping industry and is still widely used today to describe durable steel boxes designed for storage, transport, and site-based use.
At Tradecorp, we don’t just explain Conex boxes—we supply them nationwide. Whether you’re researching sizes, weight, cost, or comparing Conex vs shipping container options, everything you need to know (and buy) is right here.
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What Is a Conex Box?
A Conex box—short for Container Express—is a rugged, rectangular steel container originally designed to move and store goods efficiently. Today, the term Conex is commonly used interchangeably with shipping containers and storage containers.
Modern Conex boxes are built to ISO standards and manufactured from corten steel, a corrosion-resistant alloy designed to withstand harsh weather, stacking pressure, and repeated transport. This makes them a reliable storage solution for both short-term and long-term use.
At Tradecorp, our Conex boxes are available for sale or rent, in multiple sizes, conditions, and configurations—ready for delivery when you are.
The History of the Conex Box
The history of Conex Box began in the 1950s during the Korean War. However, before the box was initiated, there was the Transporter, Conex’s predecessor. At the beginning of World War II, the US Army used transporters to send supplies to the battlefield.
At that time, the length of time to load and unload ships resulted in a lot of cargo being delayed at ports, which led to theft and damage of supplies during transit.
In late 1952, the Transportation Corps developed the Conex to replace the Transporter. The Conex was used in Korea because it was thought to reduce theft, damage, and delivery time of goods. Therefore, after its proven success in Korea, Conex boxes were initiated for faster and more convenient delivery.
By the Vietnam War, over 100,000 Conex boxes were in active military use, serving as:
- Freight and supply storage
- Secure weapons lockers
- Field hospitals and pharmacies
- Portable offices and command centers
- Temporary bunkers and warehouses
This military innovation eventually evolved into the ISO shipping containers used worldwide today.
The Usage of the Conex Box
A Conex box is usually made from corten steel, a high-quality, corrugated steel type. This type of material allows the box to be stacked during shipping and storage. Thanks to their durability and modular design, Conex storage units are now used across virtually every industry. Common applications include:
- Secure on-site storage for tools and equipment
- Warehouse overflow and inventory staging
- Construction and industrial job sites
- Retail pop-ups and temporary shops
- Modular offices and workspaces
- Agricultural and vehicle parts storage
- Renovation and relocation projects
Because they’re made from corten steel, these steel boxes can be stacked, relocated, and reused for decades—making them one of the most cost-effective storage solutions available.
Tradecorp supplies Conex boxes for commercial, industrial, and residential use, with options to customize doors, ventilation, insulation, shelving, and paint.
Conex Vs Shipping Container
Decades after the birth of the Conex box, there have been many other types of boxes with similar functions. Of the many types of boxes, the most popular one is the storage container. Check out the following table to know the basic comparison of the Conex box and Storage box!
The Comparison of Conex Box and Storage Container
| Feature | Conex Box | Shipping Container |
| Common sizes | 20′ and 40′ | 10′, 20′, 40′, 45′ |
| Material | Corten steel | Maritime-grade corten steel |
| Weather resistance | Wind & watertight | Wind & watertight |
| Primary use | Storage & transport | Storage & transport |
When we analyze both of the boxes from their shape, there is almost nothing that distinguishes Conex boxes from storage containers. Both are defined as large steel boxes used to ship goods. What differentiates them is only their names, as the container industry has branded their products with various names over time.
People use multiple terms for the same thing because of historical and other differences. For example, English people use “football” to define a sport that requires two teams to kick a ball to score a goal, while people in the US call it “soccer”. Regardless of the name, those two words mean the same thing.
How Much Is a Conex Box?
Pricing depends on several factors:
- Size (10′, 20′, 40′, or 45′)
- Condition (used, cargo worthy, or one-trip)
- Modifications (doors, insulation, shelving, HVAC)
- Delivery location
In general, used Conex storage units offer the most cost-effective option for customers who need reliable storage without paying new-container pricing.
Tradecorp provides transparent quotes, nationwide delivery, and expert guidance so you can choose the right container for your budget and application.
Conex Box Weight: What You Should Know
Understanding Conex box weight is important for planning delivery, placement, and transport.
Approximate empty (tare) weights:
- 10′ Conex box: ~2,000–2,500 lbs
- 20′ Conex box: ~4,800–5,200 lbs
- 40′ Conex box: ~8,000–8,500 lbs
Because these steel boxes are extremely strong, they can support heavy payloads and stacking loads while maintaining structural integrity.
Tradecorp’s logistics team helps ensure proper delivery equipment is used based on container size and site conditions.
Reliable Conex Box Supplier
Renting a Conex Box from Tradecorp is now easier because we have a depot located at 5920 SW 202nd Ave, Fort Lauderdale, FL 33332, United States. We offer various container units and modular buildings to meet your site office, modular housing, portable employee dormitory, and other needs.
• Rent Multipurpose Dry Containers
• Rent Refrigerated/Reefer Containers
• Rent High Cube Containers
• Rent Open-Top Containers
• Rent Side-Opening Door Containers
• Rent Flat Rack Containers
• Rent Cafe Containers
• Rent Office Containers
Why Choose Tradecorp for Conex Storage Units?
If you’re researching Conex boxes, you don’t need to go anywhere else. Tradecorp is a nationwide supplier of Conex storage units, with decades of experience and inventory ready to deploy.
What Sets Tradecorp Apart:
- Nationwide availability and fast delivery
- Multiple sizes and conditions in stock
- New, used, and modified Conex boxes
- Expert sales support—no guesswork
- Containers built from high-quality corten steel
- Rental and purchase options
We help customers find the right storage solution, whether they need one box or an entire fleet.
Conclusion
The Conex box has come a long way from its military origins to become one of the most versatile storage solutions available today. Whether you’re comparing Conex vs shipping container, asking how much is a Conex box, or researching Conex box weight, the answer is simple: Tradecorp has you covered.
With a nationwide footprint, high-quality corten steel containers, and expert guidance from start to finish, Tradecorp makes it easy to buy or rent Conex storage units without hassle.
Ready to get pricing or check availability? Fill out our quote form today and let Tradecorp deliver the Conex box you’re researching—directly to your site.
