Janka Scale Wood Flooring

The scale was invented in 1906 by gabriel janka an austrian wood researcher and standardized in 1927 by the american society for testing and materials depending on the room where the flooring will be installed a certain level of hardness may make it a more desirable choice.

Janka scale wood flooring.

A common use of janka hardness ratings is to determine whether a species is suitable for use as flooring. It is the industry standard for gauging the ability of various species to tolerate denting and normal wear as well as being a good. 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. The janka test measures the amount of force required to embed a 0 444 steel ball into the wood to half of its diameter.

Woods with a higher rating are harder than woods with a lower rating. The janka hardness test is a measurement of the force necessary to embed a 444 inch steel ball to half its diameter in wood expressed in pounds force lbf. 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.

Janka hardness scale for wood flooring species. The scale used in the table is pounds force. The janka scale is used to determine the relative hardness of particular domestic or exotic wood species. The most popular hardwood flooring out there is red oak and it has a rating of about.