75 Types of Wood Ranked by Janka Hardness and How They Are Used

75 Types of Wood Ranked by Janka Hardness and How They Are Used This wood hardness list ranks 75 types of wood by their Janka rating. Explore our wood density chart to see which hardwood is the best for your next project! The Janka hardness scale measures the force that’s required to embed a steel ball halfway through a sample of wood. The ball is 0.444 inches in diameter and fired with increasing force. The pounds of force (or newtons if you’re using the metric system) needed to push the ball to the center is the Janka value you end up with. It’s a great way to measure how resistant a piece of wood is to denting and wear. Our Janka wood hardness chart shows how durable certain wood types are. Click to view full size image

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