What type of drawer slides do fireproof filing cabinets use?

Commercial fireproof filing cabinets use heavy-duty full-extension or three-quarter extension steel ball-bearing slides or roller-bearing slides designed to handle the substantial weight of the insulated drawer. Full-extension slides allow access to the full drawer depth. Anti-tip devices are built in so only one drawer can open at a time, preventing the cabinet from tipping. Consumer-grade slides would fail under the weight of fireproof drawer construction. OfficeFurniture2go.com — call 1-800-460-0858.