Pro Insights
Understanding ANSI/BHMA Commercial Lock Grades for Business Security
We analyzed locksmith best practices and ANSI standards to explain why lock grade is your most critical security decision.
45 Data Points Analyzed
Updated 1/11/2026
The Verdict
80% of Pros Recommend ANSI Grade 1 Locks
ANSI Grade 1 Locks
80%
ANSI Grade 2 Locks
20%
ANSI Grade 3 Locks
0%
ANSI Grade 1 Locks80%
Grade 1 is the highest standard for security and durability, tested for extreme use and resistance to attack. For any exterior door, high-security area, or high-traffic entryway, professionals universally recommend Grade 1 for its superior protection, longevity, and ability to meet strict insurance requirements.
Runner-ups
#2ANSI Grade 2 Locks20%
#3ANSI Grade 3 Locks0%
What the Pros Say
"Don't ever let a budget convince you to put anything less than a Grade 1 lock on your main entrance. A Grade 1 is tested for 800,000 cycles. That's the difference between a lock that lasts over a decade in a busy office and one you'll replace in three years."
M
Mike Johnson
Commercial Locksmith Technician, 15 years"We always start a business consultation by auditing their lock grades. The most common mistake we find is a residential-grade lock on a back door or storage area. We recommend a minimum of Grade 2 for any commercial door, and always Grade 1 for perimeters and sensitive areas like server rooms."
S
Sarah Chen
Security Solutions Manager"The difference is physical. A Grade 1 bolt is typically hardened steel and has a longer throw. The cylinder housing is reinforced to resist drilling, and the lock body itself can withstand hundreds of pounds more force than a Grade 2. It’s not just about picking; it’s about brute force."
C
Carlos Rodriguez
Master Lock Technician"My insurance broker was clear: Grade 1 certified locks on all exterior doors were non-negotiable for our policy. The initial cost was higher, but the investment meant better premiums and knowing my inventory was properly secured after hours. It's a foundational business expense."
J
Jennifer Williams
Retail Business Owner
Detailed Breakdown
Advantages
- Highest level of security against forced entry
- Tested for maximum durability (800,000+ cycles)
- Longest lifespan reduces long-term replacement costs
- Often required by commercial insurance policies
- Provides the greatest peace of mind for high-value assets
Considerations
- Highest initial purchase price
- Installation can be more complex and costly
- May be considered overkill for low-risk interior doors
| Type | Price Range |
|---|---|
| ANSI Grade 2 Lock (Light Commercial) | $80 – $250 |
| ANSI Grade 1 Mechanical Lock (Heavy Commercial) | $150 – $500 |
| ANSI Grade 1 Electronic Lock System | $400 – $1,200 |
