how deep are standard file cabinets
But for office or home use, the standard is the three-drawer and four-drawer type, which comes in either letter-size or legal size paper. By letter-size and legal size, we mean the width of the filing cabinet. They also come in different depths. They may be 25, 26 1/2, or 28 inches deep. What is amazing about the vertical file type is that they can be suspended completely for full access to the files.