When choosing a file, look for certifications from . The rating indicates how long the file can withstand a fire and what it is designed to protect: Class 350: Maintains an internal temperature below
Durable outer plates act as the first line of defense against impact and flames. fire proof files
. This is the standard for protecting , as paper begins to char at approximately Class 150/125: Maintains internal temperatures below When choosing a file, look for certifications from
Protecting What Matters: A Guide to Fire-Resistant Files Fire-resistant files (often called "fireproof files") are specialized storage units designed to protect critical paper documents and digital media from extreme heat and structural collapse during a fire. While standard metal cabinets are non-combustible, they conduct heat quickly, which can lead to paper inside charring or bursting into flames even without direct contact with fire. How Fire-Resistant Files Work These units are built with a "sandwich" design: This is the standard for protecting , as
Layers of gypsum or cementitious materials are cast inside the steel shell. These materials contain moisture that, when heated, is released as steam, keeping the internal temperature significantly cooler than the exterior.