Janka is a test that measure the hardness of a wood. The
test measures the force required to push a steel ball with a
diameter of 11.28 millimeters (0.444 inches) into the wood
to a depth of half the ball's diameter, thereby giving an idea
of it's hardness and durability.
The higher the number, the harder the wood, and also the
more difficult it may be to sand.
So. Yellow Pine
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690
|
American Cherry
|
950
|
Teak
|
1000
|
Black Walnut
|
1010
|
Carbonized/ Carmel Bamboo
|
1120
|
Heart Pine
|
1225
|
Yellow Birch
|
1260
|
Red Oak (Northern)
|
1290
|
American Beech
|
1300
|
Ash
|
1320
|
White Oak
|
1360
|
Australian Cypress
|
1375
|
Natural Bamboo
|
1410
|
Hard Maple
|
1450
|
Brazilian Oak
|
1460
|
Brazilian Maple
|
1500
|
Angelim
|
1720
|
Hickory/ Pecan
|
1820
|
Purpleheart
|
1860
|
Moabi
|
2050
|
South American Pearwood
|
2100
|
Tigerwood
|
2160
|
Santos Mahogany
|
2200
|
Tatajuba
|
2220
|
Jatoba (Brazilian Cherry)
|
2760
|
Tiete Rosewood
|
3200
|
Cumaru (Brazilian Chestnut)
|
3540
|
Ipe ( Brazilian Walnut)
|
3680
|
|
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hardness, janka hardness scale
While there are many factors to consider when choosing your
hardwood flooring, durability is definitely one to think about. The
harder a wood is, the more durable and strong it tends to be. A
very popular choice is red oak, such that it has become a
benchmark. Each wood species and type has it's own
characteristics and strength. The Janka Test is a good reflection of
how hard a wood is, and therefore reflects durability.
The Hardwood Guys, L.L.C. Affordable Excellence in Hardwood Flooring.
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