How Hard Is Your Solid Wood Flooring - the Janka Hardness Test Scale
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.
|North American Cherry|
|North American Walnut|
|North American Maple|
|Brazilian Cherry (Jatoba)|