Wood Hardness Chart (Janka Scale)
By Roof Online Staff • Updated October 8, 2022
This table shows the relative hardness of various wood species according to the Janka Scale.
| Wood Species | Janka Hardness (in Newtons) |
|---|---|
| HARDER | |
| Lignum Vitae | 19,510 |
| Brazilian Ebony | 16,420 |
| Ipe | 16,390 |
| Cumaru | 15,470 |
| Ebony | 14,300 |
| Golden Teak | 10,400 |
| Merbau | 8,560 |
| Hickory | 8,100 |
| Rosewood | 7,900 |
| Black Locust | 7,600 |
| Pear | 7,380 |
| Honey Locust | 7,030 |
| European Yew | 6,760 |
| European Ash | 6,580 |
| European Beech | 6,460 |
| Sugar Maple | 6,450 |
| White Oak | 6,000 |
| White Ash | 5,870 |
| American Beech | 5,780 |
| Yellow Birch | 5,610 |
| Silver Birch | 5,360 |
| Larch | 5,300 |
| Teak | 5,140 |
| English Oak | 5,000 |
| Blackheart Sassafras | 4,860 |
| Sycamore Maple | 4,680 |
| Burmese Teak | 4,600 |
| Black Walnut | 4,500 |
| Red Maple | 4,230 |
| Cherry | 4,200 |
| London Plane | 4,180 |
| Red Elm | 3,830 |
| English Elm | 3,620 |
| Parana Pine | 3,610 |
| Mahogany | 3,600 |
| Sycamore | 3,430 |
| Southern Yellow Pine | 3,100 |
| Douglas Fir | 2,900 |
| Sassafras | 2,800 |
| Alder | 2,600 |
| Scots Pine | 2,420 |
| American Chestnut | 2,400 |
| Poplar | 2,400 |
| Western Hemlock | 2,400 |
| Sitka Spruce | 2,270 |
| Eastern Hemlock | 2,220 |
| Lodgepole Pine | 2,140 |
| Redwood | 2,000 |
| Western White Pine | 1,900 |
| Eastern White Pine | 1,700 |
| Norway Spruce | 1,680 |
| Atlantic White Cedar | 1,560 |
| Quaking Aspen | 1,560 |
| Western Red Cedar | 1,560 |
| Northern White Cedar | 1,420 |
| Balsa | 440 |
| SOFTER | |