Why Do Wooden Stairs Creak?

All things made of wood, furniture, stairs, and all parts of houses, keep changing size because wood expands with heat and contracts with the cold. Wood also swells when the air is moist, then shrinks when the air is dry.

So when you walk up stairs at night and you hear them creak, they probably have contracted from the cold, damp air.

About Karen Hill

Karen Hill is a freelance writer, editor, and columnist. Born in New York, her work has appeared in the Examiner, Yahoo News, Buzzfeed, among others.

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