Abstract: A container system for one-level and two-level freight cars and double-deck coaches, especially for high-speed trains. The object is to ensure safe shipping at high speeds along with simple and well conceived loading and unloading. The containers are stowed inside the car or coach and secured for shipment by stops. The fronts of the containers are coplanar with the outer surface of the car or coach and constitute a continuous surface with its side. The car or coach is provided with mechanisms that lock the container into position without compromising the continuity of the surface, and any residual gaps around the edges of the containers are occupied by sealing strips.