Two compartment storage box with dimensions of 56 inches X 18.5 inches and it is 21 inches deep. It is constructed of half inch plywood. As illustrated in the photos, the box can be used on end, on its side or as two side by side box compartments to which a lid could be attached, if so desired. And additional shelves could also be added if it was stood on end. I have two of them and am willing to sell as a pair for $20, or separately for $10 apiece.