OEM Bankers Box Stor/File medium-duty storage boxes with lift-off lids are designed for secure file storage of letter-size files. These boxes feature double-end, 1-1/2 side, double-bottom construction, making them suitable for moderate use with or without shelving. The FastFold One Step Setup allows for quick and easy assembly, while the deep, locking lid ensures contents remain secure. Built for high stacking needs, these boxes can safely support up to 650 lb when stacked up to five units high.