Abstract: A storage facility preferably for palletized loads includes an elongate aisle along which a pallet-carrying vehicle is adapted to move. A plurality of multi-level pallet storage bays are located side-by-side along the aisle and extend laterally from the aisle for use in storing palletized loads. The levels of each storage bay are vertically aligned and are separated from each other by pallet-supporting floor sections; each bay being separated from its adjacent bay by a set of laterally spaced-apart vertically extending support members. Floor sections located between adjacent sets of vertically extending support members are removable for creating at least one laterally extending sub-aisle in communication with the elongate aisle, and the lateral spacing between at least two of the support members in a set of support members adjacent a sub-aisle provides an opening into the subaisle sufficiently large to permit removal of a pallet therethrough.