Cylindrical Locks: a bored lockset whose latch or bolt locking mechanism is contained in the portion installed through the cross-boreMedium, high to extra heavy duty
Commercial, multi-family and institutional applications
Pros - Heavy duty, unlimited cylinder options
Cons - Large rose (larger footprint on face of door), limited lever designs
Cylindrical locks with levers usually require a spring cage to lift the lever and keep it horizontal. These spring cages lead to a bigger rose (circular, finished plate against the door) – typically around 3.5 inches in diameter. Knob designs do not require this extra spring force and these roses usually have a diameter around 2.5 inches.
Schlage Commercial cylindrical locks·
Heavy Duty (high use, high abuse applications - educational facilities, hospitals, etc.)
D-Series – knob style (ANSI/BHMA Certified A156.2-2003, Series 4000, Grade 1, UL Listed for 3-hour fire door
ND-Series – lever style (ANSI/BHMA Certified A156.2-2003, Series 4000, Grade 1, UL Listed for 3-hour fire door)· Standard Duty
A-Series - knob style (ANSI/BHMA Certified A156.2-2003, Series 4000, Grade 2, UL Listed for 3-hour fire door)
AL-Series – lever style (ANSI/BHMA Certified A156.2-2003, Series 4000, Grade 2, UL Listed for 3-hour fire door)
Falcon cylindrical locks·
Heavy Duty (high use, high abuse applications - educational facilities, hospitals, etc.)
X-Series – knob style (ANSI A156.2, Series 4000, Grade 1, UL Listed for 3-Hour fire door)
T-Series – lever style (ANSI A156.2, Series 4000, Grade 1, UL Listed for 3-Hour fire door)· Standard Duty
W-Series – knob and lever style (ANSI A156.2, Series 4000, Grade 2, UL Listed for 3-Hour fire door)
B-Series – lever style (ANSI A156.2, Series 4000, Grade 2, UL Listed for 3-Hour fire door