Janka Wood Hardness Scale
janka scale
Explanation

The Janka hardness test measures the resistance of a sample of wood to denting and wear. It measures the force required to embed an 11.28mm (.444 in) steel ball into wood to half the ball's diameter. This method leaves an indentation. A common use of Janka hardness ratings is to determine whether a species is suitable for use as flooring.

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Installation

New hardwood floors added to your home can add a warmth and elegance not achieved by any other flooring surface while increasing the value of your home.

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Refinishing

Are your wood floors old and warn? It may be time to sand your floors and apply a few coats of finish to shine and protect them.

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Stairs

Allow the Northern Oak team of craftsmen to refinish your existing wood stairs or have them build you the staircase of your dreams.

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