What Janka Score Os Good For Hardwood

The janka test measures the amount of force required to embed a 0 444 steel ball into the wood to half of its diameter.

What janka score os good for hardwood.

The scale measures the force required to embed a 444 inch steel ball to a depth of half the ball s diameter into the wood. A common use of janka hardness ratings is to determine whether a species is suitable for use as flooring. The rule of thumb when shopping for hardwood flooring is that a janka scale score of 1 000 or above is the level of durability one wants in their home and consulting the janka scale graphic makes. 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.

The scale used in the table is pounds force. Still the very impressive janka ratings accurately depict the excellent durability of these non wood flooring products. Woods with a higher rating are harder than woods with a lower rating. With the amount of variations some janka ratings are stated as just good or bad.

The janka scale is used to determine the relative hardness of particular domestic or exotic wood species. The janka rating is a measure of the amount of force required to push a 444 diameter steel ball half way into a piece of wood. Important to note is the fact that during the janka hardness test specimens contain about 12 moisture. 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.

Bad janka ratings good ratings show that with the proper care and damage prevention the hardwood floor can look good and last for years to come. You usually will not see a hardwood floor with a bad rating. It measures the force required to embed an 11 28 millimetres 0 444 in diameter steel ball halfway into a sample of wood. In laymans terms it is a way to measure a woods resistance to denting.

The janka hardness test to some degree replicates such. If you purchase hardwoods from a retailer that does not utilize. Janka hardwood scale this scale is the worldwide standard for gauging the ability of various species of wood to endure normal wear and tear. 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.