The Janka hardness test is a measurement of the force necessary to embed a .444-inch steel ball to half its diameter in wood. It is the industry standard for measuring the durability of various species to tolerate denting and normal wear.
| Cork | ![]() |
| Douglass Fir | ![]() |
| Mahogany | ![]() |
| Larch | ![]() |
| Pine | ![]() |
| North American Cherry | ![]() |
| North American Walnut | ![]() |
| Black Walnut | ![]() |
| Teak | ![]() |
| Birch | ![]() |
| Beech | ![]() |
| Ash | ![]() |
| Red Oak | ![]() |
| White Oak | ![]() |
| North American Maple | ![]() |
| Maple | ![]() |
| African Oak | ![]() |
| Merbau | ![]() |
| Purple Heart | ![]() |
| Tiger Wood | ![]() |
| Santos Mahogany | ![]() |
| Brazilian Cherry (Jatoba) | ![]() |
| Brazilian Teak | ![]() |
| Brazilian Walnut | ![]() |