Mag lock or electric strike? How to choose.
How magnetic locks and electric strikes work, fail-safe versus fail-secure, code considerations, and which suits your door.
By Lock Raven, Maryland Locksmith License #737 · · 5 min read
How does each one work?
An electric strike replaces the metal strike plate in the door frame. When it receives power (or loses it, depending on the setting), the keeper swings free so the latch can pass without turning the handle. The door's own lockset stays in place.
A magnetic lock mounts an electromagnet on the frame and a steel plate on the door. While powered, the plate is held tight. Cut the power and the door opens.
How do they compare?
| Electric strike | Magnetic lock | |
|---|---|---|
| Works with existing lockset | Yes | No, mounts separately |
| Power loss | Fail-safe or fail-secure | Always releases |
| Exit from inside | Through the lever or exit device | Needs request-to-exit devices |
| Visible hardware | Hidden in the frame | Visible on the frame |
| Typical doors | Wood and hollow metal | Glass, gates, double doors |
What about fire and life-safety code?
People inside must always be able to leave without a key or special knowledge. That is easy with a strike, because the lever or exit device still opens the door. A maglock needs extra devices, such as a motion sensor and a push-to-exit button, and often a tie-in to the fire alarm so it releases automatically. Requirements depend on the building and are enforced locally, so the installer should know the code and coordinate with the inspector when needed.
Which should you pick?
- Pick a strike when the door already has a good lockset, you want fail-secure behavior, or you want the hardware hidden.
- Pick a maglock for glass storefront doors, gates, and some double doors where a strike will not fit, and where fail-safe is acceptable.
Need a hand with this? Talk to a licensed locksmith.
Lock Raven serves Baltimore City and Baltimore, Anne Arundel, Harford, Carroll, and Howard counties. Every job is priced before work starts.