Lock Grade Selection Calculator
ANSI/BHMA lock grade from traffic and security requirements.
Inputs
Results
Recommended ANSI grade
2
Security score11
Min cycle life400,000
Typical lockset cost$130.00
Closer required (1/0)1
Closer cost$150.00
Max opening force (lbf)8.5
Total per opening$280.00
How to Use This Calculator
- Enter the door location (exterior, interior, high-traffic commercial, residential).
- Set the security requirement level based on risk assessment.
- Input the expected door cycles per day to verify grade durability rating.
- Review the recommended ANSI/BHMA grade (Grade 1 for commercial, Grade 2 for light commercial, Grade 3 for residential).
- Select a lock with a cycle rating exceeding the expected lifetime door cycles.
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