Many 4-drawer cabinets use full-extension or commercial-grade steel ball-bearing slides for smooth access. Several listings also highlight ultra-quiet or silent slide systems to minimize noise when opening and closing drawers.
Drawers commonly include adjustable hanging rails that accommodate Letter, Legal and A4 file sizes; some listings also reference F4 support, covering the main document formats shoppers use.
Many models include interlocking anti-tilt systems that allow only one drawer to open at a time to prevent tipping. Other cabinets note built-in anti-tilt safety mechanisms for added stability.
Some compact under-desk 4-drawer units come with four casters (often with two locking wheels) for easy repositioning. Many metal filing cabinets, however, are freestanding and intended to remain stationary.
Most listings describe metal construction—typically steel or cold-rolled steel—with painted or powder-coated finishes. A few compact/home models note additional elements such as an MDF top or fabric-front drawers.