Most break-ins happen through doors, especially weak or poorly secured ones. Even if you have a strong lock, many doors can still be forced open with a hard kick or push. That’s where door security bars come in. But why do they work so well? The answer lies in simple physics.
When someone tries to break in by kicking or pushing a door, they are using force. That force hits the lock area of the door, which is usually the weakest part. If the lock or door frame isn’t strong enough, the door will open – even if it’s locked.
A door security bar or Door Jammer works by spreading out that force and blocking the movement of the door. Instead of letting the force go straight into the lock, the bar holds the door in place by pressing against the floor or the wall. This means a burglar would have to break through not just the lock, but also push through the bar — which is much harder.
Think of it like this: It’s easier to break a stick by bending it in one place, but much harder if it’s supported in the middle. A door bar is like that middle support. It takes the pressure off the lock and keeps the door from moving forward.
That’s exactly how our Holdoor Stick works.
The Holdoor Stick is a simple but strong device that you place behind your door, pressing against the lock from the inside. It helps stop the door from opening, even if someone tries to force it. It’s especially helpful for uPVC doors, which can sometimes flex under pressure. With the Holdoor Stick in place, the lock is supported, and the force is spread out.
Unlike some other security products, the Holdoor Stick doesn’t need tools or screws. It’s easy to use and can be set up in seconds. You just place it under the handle or lock area and let it hold firm.
In short, the physics is simple: Force + Resistance = Safety. By adding resistance to the weak point of your door (the lock), a security bar like the Holdoor Stick makes it much harder for someone to break in.
Your door may have a lock – but now, it can have real strength behind it.
