For hardwood flooring the test usually requires a 2 x 6 sample with a thickness of at least 6 8mm and the most commonly used test is the astm d1037.
Hardwood flooring hardness test.
Relative hardness of wood flooring species.
Janka wood harness testing the janka hardness test method measures the amount of force required to embed a 444 inch steel ball to one half of its diameter in wood.
In the flooring industry both janka wood hardness testing and brinell wood hardness testing are used to measure the amount of indentation into the wood using force.
Throughout the wood flooring industry the janka hardness chart is recognized as the main source for questions related to the density and relative hardness of both domestic species as well as exotic wood species from around the world.
Have you had any first hand experience of choosing a softer species of wood over a harder one.
Still the very impressive janka ratings accurately depict the excellent durability of these non wood flooring products.
It measures the force required to embed an 11 28 millimetres 0 444 in diameter steel ball halfway into a sample of wood.
More information on the hardness of different hardwood flooring.
Youtube a video demonstration of the janka hardness test in action.
When testing wood in lumber form the janka test is always carried out on wood from the trunk of the tree known as the heartwood and the standard sample according to astm d143 is at 12.
A common use of janka hardness ratings is to determine whether a species is suitable for use as flooring.
The janka hardness test is often applied to bamboo and eucalyptus flooring products after manufacturing a process that artificially hardens the material by the addition of resins.
The janka hardness test from the austrian born emigrant gabriel janka 1864 1932 measures the resistance of a sample of wood to denting and wear.
County floors an online wood floor store with a helpful hardness chart and lots of info on different wood species.
The type of construction and finish also play an important role in the durability and ease of maintenance of any wood floor.