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Janka Hardness Rating

The Janka hardness test measures the hardness of wood. It involves measuring the force required to embed an 11.28mm (0.444in) steel ball into wood to half its diameter.
This method was chosen so that the result would leave an indention 100mm² (0.16sqin) in size.

It is one of the best measures of the ability of a wood species to withstand denting and wear.

The higher the Janka Rating, the harder the timber is.

Bamboo (strand woven)16.1
Grey Box15.0
Ironbark14.0
Red Mahogany12.0
Turpentine12.0
Spotted Gum11.0
Brushbox9.5
Blackbutt9.1
Forest Reds9.1
Sydney Blue Gum9.0
Karri9.0
Tallowwood8.6
Merbau8.6
Jarrah8.5
Stringybark8.1
Australian Beech7.5
Flooded / Rose Gum7.5
Northern Beech7.5
Messmate7.1
Bamboo (vertical)6.6
Cypress Pine6.1
New England Oak6.1
American Oak6.0
Bamboo (horizontal)5.9
Tasmanian Oak5.5
Victorian Ash4.5
Baltic Pine2.9

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  • Engineered Timber Flooring
  • Laminate Timber Flooring 
  • Bamboo Flooring 
  • Oak Flooring 
  • Hardwood Timber Flooring 
  • Jarrah Flooring 
  • Blackbutt Flooring 
  • Brushbox Flooring 
  • Spotted Flooring 
  • Merbau Flooring 
  • Ironbark Flooring 
  • Radiata Pine Flooring 
  • ..and much more 

timber-colour-samples

  • Timber Flooring
  • Oak
  • Bamboo

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