43+ Janka Scale Wood Flooring The Latest. Janka wood scale test variables the results of the janka wood scale test vary when it is performed on a wood specimen. The janka scale is a comprehensive chart of hardness ratings for a huge variety of wood species used for hardwood floors.
While very hard and durable, in reality, oak ranks as the fourth hardest of the north american hardwoods.
The test is designed to measure the typically the harder the wood, the more time and energy it will take to install, as softer woods can typically be nailed easily while harder woods will. The janka hardness scale serves to quantify the hardness of a wood species, acting as an accepted industry standard for determining the suitability of specific wood species for flooring purposes. The janka hardness scale is a test to rate the relative hardness of a wood flooring. This is more complex than what it may seem.