Abstract: A rail car comprises a movable loading floor for use with a pair of platforms of substantially equal height, the platforms being located on respective opposite longitudinal sides of the rail cars for loading and unloading of trailers, motor vans, passenger cars, etc. The rail car has a recessed chassis bottom between the wheeled support trucks thereof, on which is supported the movable loaded floor for carrying and shipping a trailer. The rotatable loading floor is rotatable from a first position in which the longitudinal axis of the rotatable loading floor coincides with the longitudinal axis of the rail car, to a second position in which the longitudinal axis of the rotatable floor is at a given angle relative to the longitudinal axis of the rail car and in which the ends of the rotatable loading floor overlie respective platforms on opposite sides of the rail car.