Most lockable filing cabinets are constructed from metal—commonly steel—and feature scratch-resistant painted or powder-coated finishes. Product listings often describe all-metal or 100% steel frames with durable powder-coat surfaces.
Common slide types include full-extension ball-bearing slides and soft-close or quiet slides. Listings frequently emphasize ultra-quiet or soft-closing operation for smooth, silent access.
Hanging rails typically support common folder sizes such as Letter, Legal, and A4. Some listings also mention F4, and several models offer adjustable rails to accommodate different folder types.
Many models include anti-tilt or anti-tipping designs and interlocking mechanisms that limit how many drawers can open at once, helping prevent the cabinet from tipping when drawers are extended.
Some cabinets include removable, lockable casters for rolling use (or to remove for fixed placement), while other models are stationary and do not include wheels.
Many cabinets include built-in or adjustable hanging rails/rods sized for Letter, Legal, and A4 folders, plus deeper drawers to hold more files—helping keep documents organized and adaptable to different folder types.