The invention relates to a trailer for the transportation by road of cargo, such as containers. The trailer comprises a trailer frame; a tipping frame and lifting means which act on, on the one hand, the trailer frame and, on the other hand, the tipping frame. The trailer frame comprises a front zone which is located on coupling above a tractor unit and which is provided with a coupling member in order to effect coupling. The trailer frame also has a rear zone comprising three sets of wheels. An intermediate zone connects the front zone to the rear zone. The tipping frame extends along the trailer frame and is fastened, in the rear zone, to the trailer frame so as to hinge about a tipping axle. The trailer frame has a longitudinal beam and the tipping frame has two lateral beams. The central beam of the trailer frame is submerged between the lateral longitudinal beams of the tipping frame.