Two deadbolts sitting side by side at the hardware store can look nearly identical. One costs $22, the other $95, and the packaging on both says "heavy duty." The difference is usually printed in small type somewhere on the box: a grade. Understanding what that number means is the easiest way to stop overpaying for the wrong lock — or underpaying for one that won't hold.

Where the grades come from

Deadbolt grades come from ANSI/BHMA, the standards body that tests builders' hardware. Locks are put through cycle testing, strike-force testing, and other measurements, then rated Grade 1, Grade 2, or Grade 3. Grade 1 is the highest. It's the same scale used across the industry, so it's one of the few genuinely comparable numbers you'll find between brands.

Grade 3: the builder-grade default

Grade 3 is the entry level. It's what tract builders install by the pallet, and it's what's on a surprising number of doors across the Valley — especially homes built in the 60s and 70s that have never had the original hardware touched. Grade 3 will keep a door latched and will stop a casual attempt. It is not what you want as the only thing standing between a side door and your garage.

Grade 2: the sensible residential choice

Grade 2 is where most homeowners land, and honestly, where most of them should. It's meaningfully stronger than Grade 3, widely available, and reasonably priced. For a typical single-family home in Encino, Northridge, or Thousand Oaks, a good Grade 2 deadbolt on a properly reinforced door is a solid setup. That last part matters more than people expect — see below.

Grade 1: commercial and high-exposure doors

Grade 1 is built for commercial traffic and repeated abuse. If you run a retail space, a warehouse, or a multi-tenant building, Grade 1 is the right call — not because it's dramatically harder to defeat, but because it survives thousands more cycles before it starts to feel loose. We also recommend Grade 1 on residential doors that carry unusual exposure: a rear entry off an alley, a detached unit, or a door that's out of sight from the street.

The part the grade doesn't cover

Here's what 22+ years of service calls has taught us: the lock is rarely the weak point. The door frame is. A Grade 1 deadbolt anchored into a thin pine jamb with half-inch screws is a Grade 1 lock on a Grade 3 installation. Long screws into the framing stud, a reinforced strike plate, and a door that actually sits square in its frame will do more for real-world security than jumping up a grade. If you only change one thing, change that.

What about smart locks?

Smart deadbolts carry ANSI grades too, and the good ones are Grade 2. Don't assume that a keypad or app control implies a stronger lock body — the electronics and the mechanical grade are separate questions. Judge the hardware on both.

Not sure what's on your door?

We're happy to take a look. Barak Lock & Security Solutions is a licensed, owner-operated locksmith and security company serving Los Angeles, the San Fernando Valley, and Ventura County — residential and commercial locksmith work, rekeys, smart locks, security cameras, gates and access control, intercoms, and safes.

Call or text (818) 723-6800. Already bought your hardware? Buy it from us and we'll install it at 10% off installation.

Barak Lock & Security Solutions — licensed and insured. CA BSIS LCO4897 | CSLB 995953 | 22+ years serving Los Angeles, the San Fernando Valley, and Ventura County.