|Rosengrens safes and vaults undergo tough independent tests which certifies them for a certain level of burglary resistance.
This level of resistance is given in Grades starting at 0 and, climbing to VI for safes and XIII for vaults.
The grading system is particularly important for insurance reasons, as the contents of a safe will only be insured for the correct value if the safe carries the appropriate grade.
To grade a safe, a test must be carried out by an accredited institute. A combination of factors is taken into account including the size and effectiveness of the attack tool or tools used, the time taken and the skill of the person trying to break into the safe.