Wood Hardness Chart

Below the U.S. Forest Service list the relative hardness for numerous wood species used in flooring. These ratings were calculated using the Janka Hardness Test, which measures the force needed to embed a .444 inch steel ball to half its diameter in a piece of wood. The Higher the number the Harder the wood.

Although this Janka Hardness Test is one of the best methods to measure the ability of wood species to withstand indentations, it should be used only as a general guide when comparing various species of wood flooring. The type of construction and finish also play an important role in the durability and ease of maintenance of any wood floor. Please remember that all wood flooring can be scratched and dented if something heavy or sharp is dragged or rolled across the flooring or if stones and grit are ground into the surface of the wood from foot traffic. We would highly recommend using our felt chair and furniture glides to protect your flooring from being scratched.