Drop Deck Trailer
Definition

Also known as a step-deck or lowboy trailer, a drop deck trailer is specially designed to transport taller cargo exceeding the maximum height. It is retractable, has two deck levels (upper and lower), and has no roof, sides, or door.

According to federal regulations, a trailer must maintain a specific number of trailers depending on the weight of their load. That said, a drop-deck trailer allows for the shipping of heavy cargo without having to apply for extra permits.

Drop-deck trailers are used for heavy and extra-tall cargo since they can have extra axles. They have a flip axle on their decks, mostly laid back when not in use, and can be flipped down when shipping heavy cargo. While every state in the US has specific regulations regarding freight size, the maximum cargo height is 13'6 to 14'.

Besides, the lower deck level, also known as a "well," is much closer to the ground, allowing easy transportation of taller goods. It also makes forklifting easier and safer. Most drop deck trailers come with numerous ramp capabilities, which simplifies the loading and unloading processes.