Hardwood Floor Janka Rating Chart

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.

Hardwood floor janka rating chart.

The higher the janka rating the more dent and wear resistant a particular wood is. 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. Forest service list the relative hardness for numerous wood species used in flooring. Order online now and pick your floor up in your local ll flooring store.

All about engineered wood flooring. A common use of janka hardness ratings is to determine whether a species is suitable for use as 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. 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. 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. Although not exact the scale is a good reference for which hardwood can better withstand denting and wear when compared with another wood species. The janka chart is commonly used in the flooring industry to compare hardwood flooring types.