Janka Hardwood Chart

The Janka scale rates the relative hardness of wood. This is just a general guide when comparing various species of wood. Ranges may vary and depends on when and where the wood is harvested. This chart lists an assortment of woods from various countries. The Janka test measures the amount of force required to embed a 0.444" steel ball into the wood to half of its diameter.

hadrwood chart

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