What ANSI/BHMA Grade 1 Buys You Over Builder-Grade
When you upgrade to an ANSI/BHMA Grade 1 deadbolt, you're getting much more than just a lock. You're investing in security that greatly outperforms the builder-grade Grade 3 deadbolts most doors come with.
Grade 1 deadbolts are designed to withstand considerably more turn cycles and side-load pressure, and they can resist much greater kick-in force. This makes a vital difference on historic San Marco or Ortega homes, where the integrity of your door matters.
The longer 1-inch bolt throw of a Grade 1 deadbolt seats deeply into the frame, which is critical for dealing with the humidity-swollen wood doors common in Riverside and Avondale. This ensures the bolt engages securely, unlike a Grade 3 bolt, which might barely catch.
We recommend fitting Grade 1 deadbolts on any exterior door while using Grade 2 for lighter interior or garage-access doors, providing both security and practicality.




