Janka Hardness Table
The Janka hardness test measures the force required to drive a 0.444 inch steel ball into the wood to a depth of half the ball's diameter. This is one of the best measures of the ability of wood species to withstand denting and wear. It is also a good indicatorof how hard a species is to work with and to establish whether or not is suitable for flooring purpose.
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Hardness Scale
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Douglas Fir
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660
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Southern Yellow Pine
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870
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Red Maple
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950
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North American Cherry
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950
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Teak
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1000
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Black Walnut
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1010
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Heart Pine
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1225
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Iroko - Kambala
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1260
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Yellow Birch
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1262
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Red Oak (Northern)
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1290
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American Beech
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1300
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White Ash
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1320
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White Oak
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1364
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Natural Bamboo (Moso)
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1380
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Hard Maple
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1450
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Brazilian Maple
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1505
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Zebrawood
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1575
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Wenge
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1630
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Kempas
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1710
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African Pedauk
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1725
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Afzelia Africana
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1810
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Hickory – Pecan
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1820
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Purpleheart
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1860
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Jarrah
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1910
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Merbau
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1925
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Sydney Blue
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2023
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Brushbox
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2135
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Tigerwood
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2160
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Santos Mahogany
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2200
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Mesquite
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2345
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Brazilian Cherry/Jatoba
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2350
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Spotted Gum
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2473
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Bloodwood
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2900
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Fossilized Bamboo
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3000
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Tiete Rosewood
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3280
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Brazilian Teak
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3540
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Brazilian Walnut
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3660
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