I'm curious about how modern front doors, especially those with pull bars and deadbolts, manage to stay closed even when the lock is disengaged. I've noticed they don't swing open even during strong winds or if someone leans against them. What's the mechanism behind that?
3 Answers
For standard house doors, they typically have a latch mechanism that keeps them secure. You can open it using a doorknob or a latch release. It’s designed to prevent it from just blowing open if someone leans on it or if there’s strong gusts outside.
I have one of those modern doors too! They use really strong magnets to help keep the door closed. Just so you know, some doors might come with them pre-installed while others might require you to buy extra parts. If you’d like, I can share a picture of mine!
It really depends on the type of door you're looking at. If it’s more like a commercial glass door, then there’s usually a hydraulic closer at the top, which helps keep it shut. If the closer starts to fail, you can actually end up with the door swinging open in the wind, which is what happened to mine last year!

That would be awesome! Did it come like that, or did you have to add the magnets yourself?