Abstract: A moveable shelf is provided for a shelf system containing shelves in a stack arrangement mounted to uprights or side walls. The uprights or side walls include one or more shelf support members which support the shelves. One or more of the shelves are movable out from the shelf stack, either by way of a telescoping support member, or otherwise, to permit movement of such shelf or shelves to or past a lower shelf. After an upper shelf or shelves are moved vertically past a lower shelf, the upper shelf or shelves can be moved back into alignment with the lower shelf. In this arrangement, the upper shelf or shelves thereby become positioned below the lower shelf to permits easy access to the upper shelf or shelves.