EXTERIOR 90 MIN FIRE DOORS

CBC determines handing by facing the door as you open it toward yourself (usually you are inside the room but it is always as you pull the door toward you to open it).  As you open it toward yourself and the knob is on the right, it is a Right-Hand door.   As you open it toward yourself and the knob is on the left, it is a Left-Hand door.  CBC uses Handing, not Hinging.  Our fire doors have deadbolt bores.