OK, before we go any further, let’s get something out of the way. A Conex box is a shipping container. Sort of. Depending on who you ask (and what you’re using it for), these things may go by different names. But if you’re in the market to buy or rent one of these babies here in Central Texas, what matters less than the name is how well that big ol’ steel box can stand up to the Central Texas heat, storms, and job sites.
Strictly speaking, a Conex box is a type of shipping container. The name originated with the United States military during the Korean War. Our boys over there needed a speedy way to transport their equipment and supplies. They began using heavy-duty steel boxes, which they nicknamed “Container Express” or “Conex” for short. Thus, the birth of the Conex box.
Shipping container is the proper industry term for the strong, steel boxes we all know and love. Most people think of these containers being thrown around on rough ocean currents, but they’ll withstand just as much here in the great state of Texas. Need a secure place to store construction equipment on a dusty job site in Austin? Want to store extra feed in a weatherproof container on your ranch outside Waco? You name it. These babies can handle it.
Well, what gives? And does it really matter which one you use?
In this post, we’re going to walk through:
- The history of “Conex” (and why it has become such a permanent fixture)
- What makes these containers so sturdy and reliable
- How Texans all over the Austin–Round Rock metro and Hill Country are using them today for portable storage containers, micro homes, job sites, and much more!
Whether you’re in the market to purchase one, rent one, or just want to learn more.
Key Takeaways
- Simply put, a Conex box is just a shipping container with a military nickname.
- They’re made of heavy steel to resist extreme weather, cross-country transport, and heavy use. In our case, that means Texas summers that melt butter, harsh UV exposure, and Hill Country monsoons.
- Available in standard shipping container lengths (20- and 40-foot), Conex boxes can be used effectively for storage, work sites, or unique builds.
What is a Conex box, exactly?
It’s simply a rugged steel box designed to transport and store goods without complication. Conex is short for “Container Express,” which was the reasoning behind their quick-and-easy secure transportation design. Available in either 20 foot or 40 foot standard container sizes, they fit nicely on top of one another and can be loaded into or unloaded onto virtually any driveway between Houston and El Paso.
The History of Conex Boxes
The origin of Conex boxes date back to the Korean War. The U.S. Army was transporting supplies for troops and needed something more durable for shipping. Thus began the era of U.S. Military Containers.
Freight containers were the standard-issue packaging during this time, but they were easier to penetrate and less durable. The Army developed steel “Transporters” which were more durable and secure. They also just worked better.
In the 1960s, shipping companies realized there should be some sort of standardization with size. This was a pivotal point in history for shipping containers. It allowed for easier transfer of containers between trucks, trains, or ships. Also allowed containers to stack like LEGO bricks. Enter the modern-day ISO containers we know today.
What’s a Shipping Container?
Shipping containers (also known as cargo containers or ocean containers) are large metal boxes that are used to haul products all over the world via ship, rail, or highway. Containers are typically made of Corten weather-proof steel that will not rust. More importantly, here in Central Texas, that rust-resistant Corten steel and watertight seals were designed for life on the ocean. But they also protect your stored equipment from sweltering in the Texas sun or getting soaked if unexpected tropical weather blows through. Furthermore, They have grooves in the metal that make them strong and not break easily. Shipping containers come in different sizes, but 20 feet and 40 feet ones are used the most. Specialized slots in the bottom of a shipping container allow you to move them around on a forklift. Most containers are waterproof and built to rigorous container standards to ensure seaworthiness, as dictated by the Convention for Safe Containers.
Features of Conex Boxes and Shipping Containers
Defining characteristics of a Conex box and shipping container.
Watertight
New containers are designed to be watertight most of the time. When they are closed up, they shed water completely. Your container will never leak if it’s sea-worthy because the rubber gasket around the doors keeps water and debris out. That’s also what protects your equipment from the dreaded Central Texas thunderstorm!
Durable and Reliable
Need we say more? Designed to be strong enough to survive the stresses of ocean transport, they will likely outlive you. That reliability also means they can withstand severe UV exposure and summer temperatures well above 100°F. Double bonus if you need weather-resistant outdoor storage year-round in Texas.
Size
Coming in 20-ft and 40-ft sizes, they are the perfect fit for most trucks/trailers. Easy to transport yourself to the seaport vs. the larger containers and easily stacked on a ship once there. Containers are designed and sized by the International Organization for Standardization.
Is There a Real Difference Between Conex Boxes and Shipping Containers?
Not exactly.
Conex box is a slang term that originated in the military.
Shipping container is the standard industry term recognized everywhere else.
They’re manufactured the same way. They have the same capabilities. The only “difference” between them is the name they go by and where you hear that name used.
Here’s a quick side-by-side comparison:
Conex Box vs Shipping Container: Side-by-Side
| Feature | Conex Box | Shipping Container |
| Term Origin | U.S. Military (Korean War, 1950s) | Global shipping & logistics industry |
| Meaning | Short for “Container Express” | General term for intermodal containers |
| Materials | Usually Corten steel or similar | Corten steel (weather-resistant) |
| Common Sizes | 20 ft and 40 ft | 20 ft and 40 ft |
| Primary Use | Military, storage, job site use | Shipping goods across sea, rail, road |
| Waterproof? | Yes, with rubber door gaskets | Yes, sea-worthy with proper seals |
| Stackable & Forklift Ready | Yes | Yes |
| Name Usage | More common in U.S. & construction | Standard term used globally |
Ways to Use Conex Boxes and Shipping Containers
These days, shipping containers/Conex boxes are for more than just shipping. People use these containers for lots of different things, including:
- Shipping containers and Conex boxes are utilized for more than just transportation these days. Here are just a few of the ways people all over Central Texas are using them:
- Transporting goods by sea or rail
- Warehouse or temporary storage for equipment, tools, and inventory
- Construction & development: With rapid growth in Austin and our neighboring suburbs of Round Rock, Georgetown, and Kyle, construction managers are finding containers to be a reliable temporary job-site office and secure tool lockup.
- Farms & ranching: Farmers and ranchers in Bastrop, Wimberley, and even on ranches outside of Waco are using 20- and 40-foot boxes to store feed away from the elements, safely house ATVs and tractors, and store tack free of rodents and pests.
- Pop-up shops & local businesses: Music festivals and food trucks are only a portion of why Central Texans love our pop-ups. From South by Southwest to Austin City Limits, containers can become ticketing windows, retail shop fronts, and festival storage areas.
- Storage units, container homes (a.k.a. “tiny homes”), container offices, and even emergency relief shelters or temporary medical centers.
How We Handle Central Texas Delivery
Terrain in Central Texas varies widely. We service areas ranging from the flat, hard packed black-land prairie ground in Taylor to the sloped, rocky, tree-studded lots in and around Dripping Springs. Our trucks are equipped to handle narrow Hill Country roads and dropping a container in the middle of a muddy job site after heavy rains. Not sure if your lot can fit and access a container? Send us pictures of your lot, and we’ll work out the details before delivery day.
Which Container Should You Choose?
Technically, a Conex box and a shipping container are one and the same thing. You don’t have to agonize over which term to use. The deciding factor comes in their size and capacity:
- 20 Foot Standard: Perfect if you have limited space to keep it on your property or you are storing smaller/high-density items…think tools, extra ranch feed, or retail inventory.
- 40 Foot Standard: Better suited for storing large/bulky items like ATVs or tractors or if you’re cleaning out a huge commercial work site.
Not sure which size would work best for your property, whether it be a small job site in the middle of Dallas or several acres outside of San Antonio? Give us a call, and we’ll help you decide.
Conex or Shipping Container? We Bring the Best of Both to Central Texas
Intermodal shipping containers revolutionized transport logistics, and are now changing the way we build homes and offices, too. Originally intended for their intended purpose, these durable steel boxes can do much more. Entrepreneurs and homeowners are finding numerous uses for shipping containers, from improvised storage sheds to high-tech homes. Whatever you know them as, cargo containers, storage containers, shipping containers, or even a Conex box, if you are in need of one that can withstand the wrath of Central Texas weather, oppressive August heat, harmful UV rays, torrential Hill Country rains, then you’ve come to the right place. We service Central Texas, delivering and installing your shipping container right where you want it.
