A computer server for a network-based transaction system is coupled to a kiosk via a data communications network. The kiosk includes a computer processor, an input device, an electronic display unit, a plurality of compartments, and a data communications port. The computer server receives input from a seller of an item. The input includes a listing of the item for sale on the network-based transaction system. The server identifies an available compartment from the plurality of compartments based on the size of the item for sale. The available compartment is configured to receive the item for sale from the seller. The server transmits an identification of the available compartment to the seller via the electronic display unit, and enables access to the available compartment by the seller.