Why is my floor cupped up on the edges?

When wood flooring “cups” up at the edges it is because of water has been introduced to the wood after it was installed. This is true whether it has been installed for two days or twenty years ago. The sketch below illustrates the difference between “cupping” and “crowning” and will help explain why “crowning” occurs. With enough time most floors will dry out and in some cases no repairs are required. This of course depends on the volume of water that has been absorbed into the flooring and the length of time that the flooring is exposed to moisture. When floors have absorbed a great volume of water it is best to replace these floors. We recommend that new flooring be replaced when water damage has occurred due to scheduling requirements and to return the floor to a new condition.

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