Abstract: A utility cart having detachable and reversible shelves comprising a pair of end frames each having a pair of elongated rigidly connected upright hollow supports which are parallel and spaced apart. A horizontal orthogonal shelf device is detachably secured at the corners to said upright supports. One shelf device includes a flat bottom and two transverse flanges on opposite parallel side edges to provide a partial closure, the opposite ends being open. A mounting bracket is secured to each end of each flange and has an attaching portion projecting angularly inwardly. Each attaching portion engages the respective upright support at a point within the angle defined by the shelf corner. Each support is further provided at such engagement point with a threaded opening through one wall thereof. A screw is received through an opening in each bracket and is threaded into the threaded opening for securing the shelf device to the upright supports.