What does janka rating mean.
Janka rating hardwood flooring.
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Hardwoods are better than softwoods.
The janka hardness scale determines the hardness of a particular type of wood over another.
It is also a good indicator of how hard a.
The janka test measures the force required to embed a 444 inch steel ball into the wood by half its diameter.
While the complete janka hardness listings will reveal that there are some fairly hard softwoods and some relatively soft hardwoods in the species most commonly used in flooring the identifiers hold true.
Strand woven bamboo and eucalyptus flooring on average have janka ratings upwards of 3 800 which is much higher than traditional wood flooring.
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The janka rating scale was created to rank the various degrees of hardness throughout the different species of hardwoods.
It measures the force required to embed an 11 28 millimetres 0 444 in diameter steel ball halfway into a sample of wood.
The higher the janka rating the more dent and wear resistant a particular wood is.
Similar to a laminate ac rating the hardwood floor hardness determines the durability of the species.
Although not exact the scale is a good reference for which hardwood can better withstand denting and wear when compared with another wood species.
This isn t to say that wood species with a janka rating in the hundreds will not work.
Solid hardwood flooring will always be stronger than hardwood veneer engineered flooring.
With that said as a general rule of thumb wood species used in flooring should generally have a janka rating of 1 000 or higher.
Although some tests have shown bamboo and eucalyptus to be over 5 000 on the janka scale the truth is that janka hardness ratings can vary from lot to lot even when produced by the same factory.
In laymans terms it is a way to measure a woods resistance to denting.
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 wood hardness scale.
So there is a variation between the janka rating and the final hardness of any hardwood flooring.
This test is one of the best measures of the ability of a wood specie to withstand denting and wear.
The industry standard for hardness the hardness of a wood is rated on an industry wide standard known as the janka test.
The janka number is found by pushing a steel ball into a 2 x 2 x 6 wood plank.
The janka chart is commonly used in the flooring industry to compare hardwood flooring types.
