Sliding Door Security Bars and Extra Locks That Actually Help

A sliding glass door’s latch alone is often easy to defeat, and Arizona’s Arcadia doors are no exception. The simplest fixes are a bar or dowel in the track so the door can’t slide, a pin or foot lock that pins the door to the frame, and blocks or screws in the top track so the door can’t be lifted out.

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Why sliding doors need extra help

A sliding door latch holds the door closed, but it isn’t designed to stop a determined push. Some doors can also be lifted out of the track from outside. Adding a second point of security makes the door much harder to force. These are simple, renter-friendly upgrades in many cases.

Track bars

• Dowel or rod in the bottom track: the cheapest option. Cut it to fit snugly between the sliding door and the frame when the door is closed.
• Hinged security bar (charley bar): mounts on the frame and swings down to block the door. It’s visible from outside, which can discourage attempts.
• Adjustable floor bar: wedges between the door and the opposite frame. Easy to install and remove.

Pin and foot locks

• Pin lock: a pin goes through the sliding door frame into the fixed frame, so the door can’t slide or lift. Usually needs a small hole drilled.
• Foot lock: mounted at the bottom of the door; you push it down with your foot to lock.
• Loop or flip lock: mounts on the frame and flips over to block the door.

Stop lift-out

Check whether your door can be lifted when it’s closed. If it can:

• Many installers add screws in the top track that stick down just enough to stop the door being lifted, without rubbing.
• Anti-lift blocks or clips do the same job.

Test that the door still slides smoothly after any change.

Child safety locks

Sliding door child locks usually mount high on the frame where small children can’t reach. They can stop a child from opening a door to a pool or street. Choose one that adults can open quickly in an emergency.

Fix the latch first

Extra locks work best when the main latch catches properly. If yours doesn’t, start with sliding glass door won’t lock. Bill’s video above is about choosing the right lock for your front door; the same idea applies here: pick hardware that fits the door and how you use it.