The configuration of an extendable heavy hauler trailer is a mechanism that is towed by a tractor-trailer to move specialty loads for heavy haul transporters. Extending the trailer to accommodate loads that may be used for many different lengths depending on what the cargo demands are. These trailers are readily adaptable and efficiently manipulated.
The basic configuration of these longitudinal extendable trailers has a fixed frame and an additional frame attached to the fixed frame. The additional frame allows a slidable merge with the fixed frame allowing the needed longitudinal extension. The free frame moves in relation to the fixed frame for either lengthening or shortening the trailer. The portion that is located in the rear of the trailer is usually the movable component with its independent set of wheels and axle firmly secured. When fastening down the actual heavy haulers cargo it is always secured to the fixed frame.