Why Hardness Matters

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What are Side and End Hardness tests?

Why Hardness Matters

When testing hardwood flooring, the direction of the grain will determine the result of the testing. For example, testing with force perpendicular to the grain results in what is called a plank's “side hardness.”

The Janka hardness test is a method used to determine the wood's hardness. The higher the number of the test, the harder the wood is, and the more resistant to a saw or nail it is.

Another test is called “end testing,” when the force is exerted against the surface of a stump of wood. Typically, wood's side hardness is less strong than its end hardness. Since you'll be installing wood side-up, pay closer attention: Hardness ratings are to determine whether a species is suitable for use as flooring.

   

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