Abstract: The present invention relates to a method and an arrangement for transporting larger units, especially for loading and unloading containers, and for the purpose of providing a new and fast loading and unloading system having a large degree of safety operation and which reduces handling time substantially, it is according to the invention suggested that there are used pallets (1; 101) which on the upper side are adapted for receiving and locking a plurality of containers having a total weight of up to 600-875 tons (1A; 101A), for example up to 20-25 containers, and which on the lower side comprise supporting legs (1B; 101B) or crossbars which therebetween or therearound, respectively, allow for free passing of transfer trolleys (2; 102) in picking up position, i.e. running in and out from any side of the pallet.