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Why Are Shipping Containers Known By So Many Names?
We have been asked why shipping containers are also called conex, cargo container, ISO, Storage container, intermodal, sea can, dry container and storage container, it’s easy to get confused. Shipping containers are strong, weatherproof steel boxes made from durable Corten steel. Originally designed to transport cargo overseas, they’ve gained different names over time based on how they’re used in various industries and countries.
The Standard Shipping Container – History
The standard shipping container revolutionized global trade in 1956 by Marcolm McLean, by simplifying cargo handling and reducing costs. Before this cargo was put inside wooden boxes of different shapes and sizes.
By the 1960s, the ISO established size and design standards, enabling seamless transport across ships, trains, and trucks. Containerization rapidly expanded in the 1970s, with ports adapting to handle container ships, transforming global trade into a faster and more efficient system.
The names for shipping containers have evolved over time based on their function, use, and industry context. Here’s a timeline-style overview:
1950s- The Origin
- “Shipping Containers”– Initially referred to as standardized steel boxes designed for transporting goods.
- “Cargo Containers”– A term used to describe their primary purpose—moving cargo.
- “Sea Cans”- The term combines “sea” (indicating their use in maritime shipping) and “cans” (a casual reference to their box-like, container shape)
- “Tank Containers” – For safely transporting liquids and gases.
- “Refrigerated Containers” – Were developed to ship temperature-sensitive goods.
1960s- Standardization
- “ISO Containers”– After the International Organization for Standardization (ISO) established size and design standards, this term became widely used to highlight their compatibility in global trade. Ensures compatibility for global shipping and stacking
- “Intermodal Containers”- Emerged to describe their ability to seamlessly transition between transport modes (ship, train, truck) without unloading the cargo inside.
1970s–1980s: Widespread Use
- “Conex Boxes”– Popularized by the U.S. military, short for “Container Express,” referring to their use in logistics and military operations.
- “Freight Containers” – Emphasized their role in carrying freight for shipping industries.
1990s: Versatility
- “Storage Containers”– As containers were repurposed for stationary storage, this term became common in construction, retail, and residential use.
- “Sea Cans”– Informal term, often used in Canada, emphasizing their maritime origin.
2000s–Today: Creative Applications
- “Dry Containers”– Used for dry goods, as opposed to refrigerated (reefer) or liquid tank containers.
- Standard size, no temperature control.
- “Shipping Boxes”– Is a casual way to refer to shipping containers
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Summary
The names for shipping containers have adapted over decades. Whether it’s called a cargo container, sea can, or storage container, the right choice depends on how you plan to use it and your budget.
At Container Sales Group, we’ve sourced top-quality containers as a wholesaler at competitive prices since 1998, serving Fortune 500 companies, construction firms, schools, public services, homeowners, and freight forwarders with reliable shipping container solutions. Container Sales Group will help you decide the best container for your project 708 639-4783.
