Flat File Cabinets — Expert Answer
What are flat-file cabinets made from, and does it matter?
Commercial flat-file cabinets are built from 16–20 gauge cold-rolled steel with a powder-coat finish — the most durable and moisture-resistant option for long-term document protection in most office environments. Wood flat-file cabinets in oak or maple are used in museum, gallery, and archival applications where aesthetics or conservation standards call for it, though wood is more sensitive to humidity fluctuations. For general engineering and design office use, steel is the right choice. FindOfficeFurniture.com carries both — call 888-719-4960.