Janka Hardness Ratings



The Janka 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.

 

 

 

 

 

 

 

SPECIES JANKA RATING
Spotted Gum 2473
Brazilian Cherry 2350
Mesquite 2345
Mahogany 2200
Brushbox 2135
Australian Beech 2046
Karri 2023
Sydney Blue 2023
Merbau 1925
Jarrah 1910
Purpleheart 1860
Pecan 1820
Bamboo* 1790
Padauk 1725
Rose River Gum 1686
Wenge 1630
Maple 1450
Cypress 1375
White Oak 1360
Tasmanian Oak 1350
Ash 1320
Beech 1300
Red Oak 1290
Birch 1260
HeartPine 1225
Heritage Oak 1102
Alpine Ash 1102
Walnut 1010
Teak 1000
Cherry 950
Pine 870
Fir 660

 

* Bamboo is a grass. Janka values vary widely between various manufacturers & between horizontal & vertical construction. Our bamboo has an average Janka of 1790.

Data is from The National Wood Flooring Association
"Wood Species Used in Wood Flooring"