Semi-trailers are a key pillar of freight transportation, carrying everything from groceries and furniture to heavy machinery across the country. These giant vehicles help keep the supply chain moving ...

Have you ever looked closely at those massive trucks on the highway carrying heavy loads? They're made up of two main parts: the semi-truck and the semi-trailer. Together, they form the full rig you ...

We've probably all heard the term "tractor trailer" used when talking about massive semi-trucks. The two names get tossed around so often that they've become interchangeable, begging the question of ...