Not all locks provide the same level of security. Homeowners looking to protect their property should know how to compare lock options. The American National Standards Institute (ANSI) grades residential and commercial locks to help consumers make informed choices. This guide explains what ANSI lock grades mean and how to use them to select reliable hardware for your home.
What Are ANSI Lock Grades?
ANSI lock grades classify door hardware by durability, strength, and security. Each lock is tested under controlled conditions to determine how well it withstands use and forced entry. The grade helps homeowners choose locks that meet the safety needs of their doors and location.
The grading scale includes:
- Grade 1: Highest performance for strength and durability.
- Grade 2: Moderate performance for residential or light commercial use.
- Grade 3: Basic performance for light-duty residential use.
Each grade reflects a lock’s ability to resist impact, repeated use, and tampering.
Grade 1 Locks: Strongest Option
Grade 1 locks offer the highest level of security available for homes. These locks withstand over 250,000 open-and-close cycles and resist ten strikes of up to 75 pounds of force.
Use Grade 1 locks for:
- Exterior entry doors.
- Detached garages.
- Any area where forced entry is a concern.
Grade 1 deadbolts often include solid steel components, longer bolts, and reinforced strike plates. They are the most reliable locks for homeowners who want maximum resistance to intrusion.
Grade 2 Locks: Balanced Security and Cost
Grade 2 locks meet residential needs with better performance than basic models. They are tested for at least 400,000 cycles and resist five strikes of 75 pounds of force. While not as strong as Grade 1, they offer dependable protection for daily use.
Install Grade 2 locks for:
- Front and back doors in suburban areas.
- Interior doors with high usage, like connecting garages.
- Rental properties that need consistent security at a reasonable cost.
Grade 2 locks are a common choice for homeowners who want quality without the added price of commercial-grade features.
Grade 3 Locks: Minimum Standard
Grade 3 locks provide the lowest level of ANSI-certified protection. These locks pass a 200,000-cycle test and resist two strikes of 75 pounds. They are suitable for interior doors or low-risk entryways.
Use Grade 3 locks for:
- Bedroom or bathroom doors.
- Storage closets that do not contain valuables.
- Homes with other layers of exterior protection, like gates.
Do not rely on Grade 3 locks for exterior doors. These locks may not withstand forced entry or high use over time.
How to Identify ANSI Grades
Manufacturers often list the ANSI grade on the product packaging or in the instructions. Look for labels like “ANSI Grade 1” or “Meets ANSI/BHMA Standards.” BHMA stands for the Builders Hardware Manufacturers Association, which works with ANSI to test and certify locks.
If the packaging does not show a grade, the lock may not be certified. Avoid uncertified products for entry doors.
Factors to Consider When Choosing a Lock
Before choosing a lock, assess where it will be installed and how often it will be used. Use the following questions to guide your decision:
- Is the door an exterior or interior entry point?
- Does the area have a high risk of break-ins?
- Will the door be used several times per day?
- Does the lock need to resist force or prying?
- Are you looking for long-term performance or a short-term solution?
These questions help match the lock grade to your specific security needs.
Common Lock Types with ANSI Grades
Locks that often come with ANSI grades include:
- Deadbolts: Standard for exterior doors. Grade 1 deadbolts are the strongest.
- Knob and Lever Sets: Used for entry and interior doors. Look for Grade 2 or higher for exterior use.
- Smart Locks: Many smart locks carry ANSI grades. Choose models that meet Grade 1 or 2 standards for homes.
Be cautious with imported or no-name brands. These may not meet ANSI or BHMA testing standards.
Choose the Right Lock for Your Home
Understanding ANSI lock grades gives homeowners a clear way to compare product strength. Grade 1 offers the highest level of security, while Grade 3 provides basic function. Each grade suits different uses and doors. Matching the grade to the risk level helps prevent forced entry and reduces maintenance needs.
Anderson Lock and Safe helps Phoenix-area homeowners choose locks that meet both performance and safety goals. We install hardware that fits your door and complies with national standards. Whether you need a front door deadbolt or want to upgrade locks across your property, we provide reliable guidance and service.
Contact Anderson Lock and Safe to schedule a consultation or ask about lock grade options for your home. We’ll help you select the best hardware to protect your space.