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Janka Hardness Ratings for Various Species of Wood (pounds)

Hardness is defined as resistance to indentation using a modified Janka hardness test, measured by the load required to embed a 11.28-mm (0.444-in.) ball to one-half its diameter. Values presented are the average of radial and tangential penetrations.(1)

Click on the species name below to view associated products:

(1) The Wood Handbook – Wood as an engineering material, USDA, General Technical Report 113.

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