Why Choose
One Fortress Solution

Why Choose One Fortress Solution

Your Safety, Engineered.

Meeting International Standards

Our security doors, windows, and shielding systems are engineered and installed to meet or exceed rigorous standards set by international testing agencies for sustained forced-entry resistance and ballistic threats.

The classification standards are UL 752 for ballistics. FE class is Forced Entry and the RC is the European equivalent for Resistance class.   

UL → Primarily North American standard, used for ballistic and forced-entry ratings (e.g., UL 752 for bullet resistance, UL 972 for burglary resistance).

FE → Forced Entry classification, often tied to US government and military specs (like ASTM F1233, ASTM F476, or Department of State FE/BR standards).    

EURO RC → European Resistance Class (RC1–RC6) under EN 1627, which rates doors/windows for burglary resistance, taking into account time, tools, and skill level of attackers.