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Question of the Day
Question
My wife and I have a terrible problem with our bedroom door. I frequently awaken at night and need a snack, but the door squeaks so loud it could wake the dead. Why do doors squeak? And why are they so loud? Is there any way to stop a squeak?
Answer
I will admit that I have never seen a paper that describes door squeaking theory,
but I can take a guess at why doors squeak.
If you have read the HSW page entitled How Guitars Work,
you know that a guitar string vibrating on its own doesn't make very much noise.
When you attach the string to a guitar's soundboard, however, the sound is much,
much louder. In a door hinge, the hinge's pieces of metal are sliding over each
other and vibrating. The door attached to the hinge probably
acts as a soundboard to amplify the sound.
I do know how to fix the problem. If you take the door off its hinges
and rub wax from a candle on the places where the hinges touch each
other and on the pins, the door should open in complete silence!
Each weekday Marshall Brain answers
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in the Question of the Day section of HSW.
You can also view previously answered questions in
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