“Fire proof” as a term, while descriptive, can sometimes be misleading without context. The realm of conditions that a fire can produce is wide and varied, and astounding temperatures can be reached. That’s the reason why “fire proof” needs to be contextualized with the temperature ranges and time-tables involved. Fire proof describes the ability of our safes to withstand fire damage, while the term “fire resistance”, accompanied by a specific time frame, describes the particular amount of time the safe can be expected to stand up to fire of a certain temperature.
Underwriters Laboratories (UL), an independent safety and quality certification company, rates our safes at a variety of different fire resistance ratings depending on their capabilities. If a safe has a UL Class 350 1-hour rating, this indicates that it can handle external temperatures of 1700ºF for one hour without the inner temperature reaching higher than 350ºF. The higher the amount of time specified in the UL Class 350 rating, the longer period of time that the safe can withstand the flames and heat.