A double drop, also known as a lowboy, is a specialized type of flatbed trailer used for hauling oversized or heavy equipment, machinery, and other cargo. It is designed with a lower deck height, which allows for taller loads to be transported, as well as providing additional clearance for overhead obstacles such as bridges and power lines.
Double drop trailers are constructed with two drops in the deck. The first drop, which is approximately 2 feet deep, is located at the front of the trailer and is used for transporting taller cargo. The second drop, which is located at the rear of the trailer, is approximately 3-4 feet deep and is used for transporting equipment and machinery with greater height requirements.