What a home safe rating actually means

Fire and burglary are separate ratings. Most small safes carry neither.

Fire ratings are expressed as a temperature and a time: a one-hour rating at a given internal temperature means the contents stayed below that temperature for an hour in a standardised furnace test. The internal temperature limit matters as much as the time, because paper chars far hotter than digital media survives.

Burglary ratings are a different scale entirely, based on how long a safe resists defined attack tools. A residential security container rating is the common entry level; higher grades describe minutes of resistance to specific tooling.

A great many small domestic safes and lock boxes carry no third-party rating at all. That does not make them useless. A locked steel box bolted down still defeats a casual opportunist, keeps documents together and stops children reaching things. It will not survive a determined attack or a house fire, and anything advertised without a named standard should be assumed to have neither property.

Bolting down matters more than the shell. The most common way a small safe is defeated is that it gets carried out of the house and opened somewhere else.

Part of the Stalwart guides. See all guides.