The invention relates to a method for changing/transporting a fire roll set (7, 8) and a second roll set (22) on a transversal displacement platform (23) in the region of a roll stand (4) in a roll hall, in or counter to the direction of rolling. During the changing/transporting of the first and the second roll set (7, 8, 22) by the transversal displacement platform (23), a roll changing hole (10) is completely transversed/covered. The invention also relates to a device for carrying out said method.