Ceco Door is the worlds leading manufacturer of steel doors and frames for commercial, industrial, and institutional construction. Ceco offers standard and fire doors in addition to specialty doors like soundproof and bullet resistant doors, Smoke-Tech systems, and hurricane and tornado resistant doors.
Ceco Door StormPro - All Doors Are Not the Same: the video below compares different steel doors subjected to the ICC 500 Tornado Impact test; the video demonstrates the value of a StormPro assembly from Ceco Door: