Best Door Locks: Will Yours Keep Burglars Out?
For most of us, security is a top priority when selecting door locks for our homes, followed by cost, style and finish. Choosing the best door locks for your doors depends on whether a door is interior or exterior, because each type of door requires completely different locking mechanisms. For example, it would not make sense to install a deadbolt on a bathroom door or a push-button privacy lockset on a front entry door. But before we get into that, let’s learn more about door locks in general and which ones are the most durable.
ANSI grading system for locks & deadbolts
The American National Standards Institute (ANSI) established three grades for door locks to help identify the quality and durability of locksets and deadbolts. Each product must pass operational and security tests, including cycles, door strikes and weight test. One cycle consists of the knob or handle turning completely to retract the latch bolt and open the door, then it is released, allowing the door to re-latch. ANSI Grade 1 is the best choice for exterior residential door locks.
Grade 1 – Best
Highest grade security available. Meets commercial building requirements and is available for residential uses via deadbolts. There are not standard knobs, handlesets or mortise lockset that will meet ANSI Grade 1 certifications, only commercial lever handles.
- Knobs must withstand 800,000 cycles, 6 door strikes and a 360 pound weight test
- Deadbolts must withstand 250,000 cycles and 10 door strikes (hammer test)
Grade 2 – Better
Meets light commercial building requirements; exceeds standard residential security and building requirements.
- Knobs must withstand 400,000 cycles, 4 door strikes and a 250 pound weight test
- Deadbolts must withstand 150,000 cycles and 5 door strikes (hammer test)
Grade 3 – Good
Meets residential building requirements only and provides minimal residential security.
- Knobs must withstand 200,000 cycles, 2 door strikes and a 150 pound weight test
- Deadbolts must withstand 100,000 cycles and 2 door strikes (hammer test)
Comments are closed