There are all sorts of security doors on the market. Most people have heard of bulletproof (a.k.a ballistic) doors, but lesser-known types of security doors include fire doors, forced entry-resistant doors, blast-resistant doors, and others.
In order to be Forced Entry and Ballistic Resistant (FE/BR) certified, doors have to pass a grueling series of tests performed to the US State Department Forced Entry standard (SD-STD-01.01 Rev. G). This is the