No we are not on about film trailers. we are talking about the trailers which are on the back of trucks. There are all sort of variants of trailers to transport every kind of freight you can imagine. The 4 most common trailers are:
Flat Bed Trailers
As the name suggests they are flat. They don’t have any sides or roof.
Used to protect freight from the elements. They are loaded from the rear but can be loaded by the side.
Low Boy Trailer
Designed to carry and transport taller goods.
Drop Deck Trailer
This is a type of flatbed. this is used to haul taller equipment that cannot be driven on.