How Lock Grades Work: Understanding ANSI Standards for Better Protection

Break down lock grading systems and help readers choose the right level of security.

Choose the Right Lock with Confidence and Clarity

When choosing a lock for your home or business, knowing how it’s graded can make the difference between basic security and serious protection. The American National Standards Institute (ANSI), in coordination with the Builders Hardware Manufacturers Association (BHMA), has created a grading system to evaluate locks based on their performance and durability. In this post, we’ll break down how these lock grades work, what they mean for your safety, and how Maple Leaf Locksmith can help you choose the best one.

What Are Lock Grades?

Lock grades are standardized ratings—Grade 1, Grade 2, and Grade 3—assigned based on a lock’s ability to withstand repeated use, forced entry, and environmental stress.

GradeCommon UseDurability & Security LevelTypical Application
1Heavy-dutyHighestCommercial buildings, high-risk areas
2Medium-dutyModerateHomes, offices, apartments
3Light-dutyBasicInterior doors, closets, storage

What Each Grade Tests For

ANSI/BHMA grading evaluates several factors:

  • Operational Cycles: Number of times the lock can operate before wearing out (Grade 1 exceeds 1,000,000 cycles).

  • Resistance to Force: How well the lock withstands hammering, prying, and other forced entry methods.

  • Finish and Environmental Durability: Corrosion resistance, weatherproofing, and how well the lock holds up over time.

Locks are tested in lab conditions to simulate years of real-world use.

Residential Recommendations

  • Front Doors & Entry Points: Choose Grade 1 or Grade 2 deadbolts for maximum protection.

  • Interior Doors: Grade 3 may be sufficient for bedrooms and bathrooms.

  • Smart Locks: Look for ANSI-rated models to ensure your tech-based lock meets safety standards.

Commercial Considerations

Businesses, schools, and public spaces typically require:

  • Grade 1 locks for exterior and high-traffic interior doors

  • Panic bars and mortise locks with Grade 1 certifications

  • Strict adherence to ANSI/BHMA standards for compliance and insurance purposes

Maple Leaf Locksmith Can Help

Choosing the right lock isn’t just about the price—it’s about matching the grade to your security needs. Our certified technicians can walk you through the ANSI ratings and recommend the best solution for your property, whether it’s a single-family home or a commercial facility.

Ready to Upgrade Your Security?

Contact Maple Leaf Locksmith in Toronto and the GTA for expert guidance on ANSI-graded locks and professional installation services.

Call us today at +1 (647) 323-3297 or visit Maple Leaf Locksmith – Grading Up Your Security, One Lock at a Time.

 

Request Service AND GET A CALL BACK IN 10 MINs.

*During Business hours only.

By clicking "SEND," you acknowledge and agree to our Privacy Policy and Terms & Conditions.