Let's be honest: unless you work in the freight industry, it's easy to think of a semi-trailer as just a big cargo box on wheels. In reality, there's a whole variety of semi-trailers out there, each ...

Flatbeds are just one of many types of semi-trailers that are a common sight on American roads. They're known for their open, single-deck design resembling a bed, from which they derive the name.

Semi-trucks can come in all shapes and sizes, dictated largely by their intended purpose. Take one of the largest semi-trucks in existence, for example, which is dubbed the 'Red Giant.' This is a ...