Considering how much of our world is now made out of plastic, it is amazing that traditional steel filing cabinets are more popular than ever. Now available in horizontal two drawer models as well as the familiar four drawer vertical filing cabinet, both of these styles are immensely popular. Perhaps the reason for the continued sales of these items is their inherent security. Most steel office storage of this kind includes a sturdy key lock. The ability to lock the cabinet door and the inability of many would be thieves to break through steel turns these cabinets into great inexpensive office safes.