The ANSI/BHMA A156.2 standard tests bored and preassembled locksets across operational cycles, strength, and security categories. The grade reflects how much abuse the hardware is certified to withstand before failing:
| Grade | Cycle Test | Strength Test | Typical Use |
|---|---|---|---|
| Grade 1 | 1,000,000 cycles | Withstands blows up to 120 ft-lbf | Commercial-grade, premium residential |
| Grade 2 | 400,000 cycles | Withstands 5 blows of 75 ft-lbf | Mid-tier residential |
| Grade 3 | 250,000 cycles | Lower force threshold, 3/8″ latch bolt projection | Builder-grade residential |
Most new-construction and entry-level replacement doors ship with Grade 3 locksets by default — adequate for normal use, but the least resistant to forced entry. Upgrading to Grade 2 or Grade 1 hardware is a relatively small line-item cost at the time of a full door replacement, and far cheaper than swapping hardware again later.
Yes, meaningfully. A standard single-point lock secures the door at one location — the strike plate near the handle. A multi-point locking system engages at two or three points along the door edge (typically top, middle, and bottom) when the handle is turned or the key is thrown. This distributes force across multiple anchor points instead of concentrating it at one, making the door significantly more resistant to kick-in attempts. Multi-point systems are standard on many European-style entry and patio doors and increasingly offered as an upgrade on North American steel and fiberglass doors.
Often more. A high-grade deadbolt installed into a standard, short-screwed strike plate can still fail under a kick because the door jamb itself splits. A reinforced strike plate with 3-inch screws that reach into the wall framing (not just the door jamb) is one of the least expensive, highest-impact upgrades available — often under $30 in hardware. Many security-focused door installations pair Grade 1 or 2 hardware with a reinforced strike plate as a standard combination specifically because the weak point in a poorly secured door is frequently the jamb, not the lock mechanism itself.
Solid-core steel and fiberglass doors resist forced entry far better than hollow-core or thin wood-composite doors. A steel door's skin over a rigid foam or wood-composite core provides meaningful resistance to kicking or shoulder-ramming that a hollow door simply cannot match. If security is a stated priority alongside the standard considerations of cost and energy performance, solid-core steel or a reinforced fiberglass door is the better starting point than a lightweight wood door, independent of what lock grade goes on it.
A door with a large glass lite, or a sidelight window next to the door, introduces a different vulnerability: someone can break the glass and reach the interior lock or deadbolt without ever forcing the door itself. Laminated or tempered security glass reduces this risk. If your entry door design includes glass near the lock, that glass upgrade is arguably as important as the lock grade itself.
In order of cost-to-security value: reinforce the strike plate with long screws into the framing first (lowest cost, meaningful impact), upgrade to at least Grade 2 hardware when replacing the door (modest incremental cost at install time), add a multi-point lock if the door and budget allow it, and choose solid-core steel or fiberglass over hollow or lightweight wood construction. Security window film or laminated glass near the lock is the next priority if your door design includes glass.
If you do only one thing on this list, reinforce the strike plate with long screws into the framing. It costs under $30 and the door jamb, not the lock, is usually the weak point that actually fails under force.
These are the questions homeowners ask most often before starting this project - what it costs, how long it takes, what a fair quote looks like and which details change the price. Each answer below is written to stand on its own, so you can read just the one you need.
