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Janka Hardness Ratings

The Janka (or side) hardness test measures the force required to embed a .444-inch steel ball to half its diameter in wood. It is one of the best measures of the ability of a wood species to withstand denting and wear. By the same token, it is also a good indicator of how hard or easy a species is to saw or nail. Northern red oak, for example, has a Janka hardness rating of 1290. Brazilian cherry, with a rating of 2350, is nearly twice as hard. If you're accustomed to working with red oak and decide to tackle a job with Brazilian cherry, you can expect it to be much harder to cut and nail.

Species Janka Rating
Angico Preto (Papperwood) 3900
Brazilian Ebony 3692
African Pearwood/Moabi 3680
Brazilian Walnut (IPE) 3670
Lapacho 3640
Southern Chestnut 3540
Tiete Chestnut 3540
Cumaru (Teak Brazilian) 3540
Strand Woven Bamboo 3500
Bolivian Cherry (Cerezo) 3190
Brazilian Redwood 3190
Caribbean Cherry 3100
Brazilian Rosewood (Tamarindo) 3000
Bloodwood 2900
Massaranduba 2890
Patagonian Rosewood 2800
Tiete Rosewood (Guibourtia) 2800
African Cedar/Bosse 2600
Brazilian Cherry 2350
Mesquite 2345
Caribbean Rosewood 2300
Acacia (small leaf) 2200
Santos Mahogany 2200
Tigerwood 2160
Sydney Blue/Gum 2025
African Rosewood/Bubigna 1980
Sucupira 1980
Merbau 1925
Amendoim 1912
Jarrah 1910
Purpleheart 1860
Hickory/Pecan 1820
Bolivian Rosewood/Morado 1780
Doussie 1770
African Padauk 1725
Kempas 1710
Acacia (big leaf) 1700
Patens 1691
Garapa (Grapia) 1654
Bamboo 1650
Junckers Beech 1630
Wenge 1630
Zebrawood 1575
Timborana 1570
Cameron 1543
African Walnut/Sappelle 1500
Brazilian Maple 1500
Tauari (Brazilian Oak) 1500
Hard Maple 1450
Caribbean Walnut 1400
Royal Mahogany 1400
Horizontal Natural Bamboo 1380
Australian Cypress 1375
White Oak 1360
Vintage Oak 1325
Ash 1320
American Beech 1300
Red Oak (Northern) 1290
Yellow Birch 1260
Caribbean Heart Pine 1240
Heart Pine 1225
Larch 1200
Brazilian Eucalyptus 1125
Peruvian Walnut 1080
Black Walnut 1010
Teak 1000
American Cherry 950
Black Cherry 950
Gaboty (Cambara) 890
Southern Yellow Pine (Longleaf) 870
South American Lacewood 840
African Mahogany 830
Mahogany 800
Honduran Mahogany 800
Southern Yellow Pine (Loblolly and Shortleaf) 690
Douglas Fir 660
California Redwood 420
Data is from The National Wood Flooring Association
"Wood Species Used in Wood Flooring"

View Dimensional Change
Coefficients by Specie

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