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Wood Flooring Hardness Rating
Get to Know Your Janka Rating

By Lee Wallender, About.com

Photo of Wood FloorCopyright Lee Wallender; licensed to About.com
The hardness of wood flooring is measured by something call the Janka test. A .444 inch steel ball is driven into the wood in question to half of the ball's diameter.

Kids and Dogs Make the Janka Test Essential

Before buying and installing your wood floor, it really is necessary to look at the Janka test. Wood floor does get scratched and dented through normal use. On top of that, if you have kids or pets, you will have increased concerns about dents and scratches.
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