wood floor hardness scale
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. it measures the force required to embed an 11.28 millimetres (0.444 in) diameter steel ball halfway into a sample of wood. a common use of janka hardness ratings is to determine whether a species is suitable for use as flooring.. Understanding how the janka hardness scale works is simple! in short, a higher number (rating) on the janka scale equates to a harder wood species; the lower the number, the softer. a janka rating provides a great barometer for determining how well a particular floor may withstand denting and wear.. Below the u.s. forest service list the relative hardness for numerous wood species used in flooring. 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..
wood floor hardness scale
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