This is measured using a scale called the Janka hardness scale. All types of hardwood floors have a rating, and the higher the rating, ... While not as hard as oak or hickory, ...

Austrian wood researcher Gabriel Janka created the hardness test that bears his name in 1906. He sought to create a reliable and objective method for testing wood density for industrial applications.

The most common way is using something known as the Janka Hardness Test, which has been an industry standard since 1906. This involves measuring the average amount of force required to “embed a ...