A method and a system utilizing the same, comprising two or more stacker cranes, of which each is intended to transfer at least one load independently, comprising a horizontally movable driving carriage and a lifting carriage arranged therein and intended for the manipulation and vertical transfer of said load. At least two stacker cranes are arranged to move, when necessary, to such a relative position in which it is possible to manipulate and transfer a load resting on the support of both lifting carriages simultaneously and to perform the movements of the driving carriages and the lifting carriages in a synchronized manner.