The security bar in this use case is meant to simply block the door from being slid open, which it can’t because the bar is blocking the railing. It fits in the door frame, adjusted so it’s snug and there isn’t much play, and then it just sort of…sits there. In that case, the security bar is used pretty much like a spacer. If you’re using this on a sliding door, then the operation is a little different. The rubber on the bottom of the security bar is meant to give it a good grippy surface so that when someone tries to push against the door it is able to stay put and not slide around. The foot then is also pushed, but into the ground or floor.
The point of the hook is to be pushed up against a doorknob or the edge of a sliding door (if it’s being used on a sliding door you usually remove the hook). The standard recipe is a large metal rod, usually height adjustable, with some sort of hook on top and a rubber foot on the bottom.Ī classic example is the Brinks Commercial Door Bar. The way most security bars work is based on the principle of friction. The answer is an interesting one, and there are a couple of factors at play that can actually be adjusted for if you know what to do.ĭo door security bars work well on carpet? So why is it that door security bars work well on some flooring types and not others? Door security bars can still be used on carpet, but they will not resist movement as much as they would if installed on a non-carpeted surface. Because they use a rubber pad on the bottom and need to have good traction, a smooth and hard surface works best. That’s the question I set out to find an answer to.ĭoor security bars do not work well on carpet covered floors.
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