What ANSI/BHMA Lock Grading Actually Means
The ANSI/BHMA grading system rates deadbolts on three levels: Grade 1 (highest), Grade 2 (mid-range), and Grade 3 (light-duty). These grades aren't marketing labels — they're defined by physical tests that every lock must pass to earn the rating. Grade 1 is the standard recommended for exterior residential and commercial doors.
The tests measure how many times a lock can operate before it fails, how much kick force it survives, and how well it holds up to tampering. A Grade 1 deadbolt must complete 250,000 open/close cycles, withstand 10 strikes of 75 ft-lbs, and resist a 300 lb static load. Grade 2 requires only 150,000 cycles and 5 strike tests — a meaningful gap in real-world durability.
How Grade 1 Compares to What's Already in Your Door
Most Fort Collins homes built between the 1970s and 1990s — including neighborhoods in Midtown and near CSU — came with Grade 2 deadbolts from the factory. Builders use Grade 2 because it meets code and costs less. For interior doors, this is adequate. For your front or back exterior door, an upgrade is worth considering.
Grade 3 locks — common on interior doors and budget retrofit kits — offer minimal protection. They're rated for just 75,000 cycles and 2 strike tests. If your rental unit door came with a pre-installed deadbolt you've never verified, it's likely Grade 2 or lower.
ANSI/BHMA Grade Comparison at a Glance
- Grade 1: 250,000 cycles, 10 strike tests at 75 ft-lbs, 300 lb static load
- Grade 2: 150,000 cycles, 5 strike tests — standard in most existing Fort Collins homes
- Grade 3: 75,000 cycles, 2 strike tests — light-duty, not suitable for exterior doors
Which Brands Make Grade 1 Deadbolts?
Several reliable brands produce Grade 1-rated deadbolts. Schlage's B60N and B62N series are widely installed Grade 1 options in Fort Collins and available at local hardware stores and through locksmiths. Kwikset's 980 series offers Grade 1 rating at a typically lower price point. For maximum security, Medeco and Mul-T-Lock make high-security Grade 1 cylinders that also resist picking and drilling — useful in higher-risk settings.
Smart lock buyers should note that the grade refers to the physical deadbolt mechanism, not the electronic components. A Schlage Encode or Yale Assure with a Grade 1 bolt gives you both electronic convenience and physical strength. A budget smart lock with a Grade 2 or Grade 3 bolt undermines the entire setup.
Why Grade 1 Matters More in Fort Collins Than You'd Think
Fort Collins has lower violent crime than the Colorado state average, but property crime — particularly in the CSU and Old Town areas — runs above average, according to FBI Uniform Crime Reports. Forced entry through a door is a common burglary method, and a Grade 2 deadbolt with a worn strike plate fails much faster than a Grade 1 setup with reinforced hardware.
A Colorado-specific factor also applies. Temperature swings on the Front Range — from -15°F in winter to 95°F in summer — cause door frames to expand and contract significantly. This is what local locksmiths call a "cold-bind," where the deadbolt sticks because the frame has shifted. Grade 1 deadbolts with tighter manufacturing tolerances typically hold up better through seasonal cycles than cheaper hardware.
What It Costs to Upgrade to a Grade 1 Deadbolt in Fort Collins
In Fort Collins, a Grade 1 deadbolt installation typically runs $120–$200 installed, including hardware and labor. This range covers standard single-cylinder Schlage or Kwikset Grade 1 options. High-security options like Medeco or Mul-T-Lock cost more — generally $250–$400 installed depending on the cylinder. Local Fort Collins locksmiths provide upfront quotes before any work begins.
If you're rekeying simultaneously — after moving into a home in the Harmony Corridor or Old Town, for example — rekeying a Grade 1 lock runs $75–$120 per lock. Combining replacement and rekeying in one visit often reduces total labor costs. See what are the best deadbolts for a home in Fort Collins for specific model recommendations by neighborhood type, or learn more about how to make your front door more secure beyond the deadbolt itself.
To get a quote from a local Fort Collins locksmith, request service here or call (970) 999-0689 for urgent needs.
A Grade 1 deadbolt is the strongest residential lock rating under the ANSI/BHMA standard — and most Fort Collins homes don't have one yet. Upgrading from Grade 2 to Grade 1 costs $120–$200 installed and is one of the highest-value security improvements you can make, especially in higher-turnover neighborhoods near CSU or in older Old Town homes where builder-grade hardware was standard.