What is The Janka Hardwood Durability Test ?
• The Janka Hardwood Durability Test is a method used to check how durable a Hardwood species is and how resistant it can be to penetrating items. In this Durability Test, a steel ball (0.444 in Diameter) is forced through the hardwood. The purpose of this test is to insert half of the steel balls diameter into the Hardwood species. The force needed behind each penetration is then measured, determining the durability of the specific Hardwood species. Softer wood species will require less force, while harder wood species will require a greater amount of force. • For example, according to the test, the Cherry Hardwood Durability score is only 950 while the Birch Hardwood Durability score is 1260.
