JANKA HARDNESS SCALE PDF

The Industry Standard for Hardness The hardness of a wood is rated on an industry wide standard known as the Janka test. The Janka test measures the force. The Janka Scale is a comprehensive chart of hardness ratings for a huge variety of wood species used for hardwood floors. Learn how to read it and how it. The Janka scale is used to determine the relative hardness of particular domestic or exotic wood species. The Janka test measures the amount of force required.

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The hardness of a wood is rated on an industry wide standard known as the Janka test. In Sweden it is in kilograms-force kgfand in Australia, either in newtons N or kilonewtons kN.

Bamboo Flooring Janka Hardness

The results are stated in various ways, which kanka lead to confusion, especially when the name of the actual units employed is often not attached. Tropical Timbers of the World. Common names are unreliable since two or more species often have the same common name. Hardness information is in chapter 5. Save my name, email, and website in this browser for the next time I comment. Where would you draw the line for the hardness?

Stability is defined by the level of flux, expansion and “movement” a wood will have when exposed to different humidity jannka. Ramon Alvarez March 18, at 4: A common use of Janka hardness ratings is to determine whether a species is suitable for use as flooring.

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Bamboo Flooring Janka Hardness Scale

It is one of the best measures to determine the hardness and durability of wood species. Douglas fir works out great for wood working benches. Forest Products Laboratory, September Retrieved 28 August The hardness of wood varies harness the direction of the wood grain.

Soft and Ambrosia Maple.

In Sweden it is in kilograms-force kgfand in Nanka, either in newtons N or kilonewtons kN. All articles with unsourced statements Articles with unsourced statements from March The Janka Hardness Scale rating has become the industry standard for determining whether a given wood is suitable for flooring material.

In the United States, the measurement is in pounds-force lbf. The Janka test is often used to deduce bamboo flooring hardness. In Janka’s original test, the results were expressed in units of pressure, but when the ASTM standardized the test tentative issue instandard first formally adopted init called for results in units of force.

Retrieved from ” https: So just wanted to check with you too. Sometimes the results are treated as units, e.

Canadian owned and operated. It measures the force required to embed an The results are stated in various ways, which can lead to confusion, especially when the actual units employed are often not attached. It has a Janka bardness of lb which technically makes it a softwood but a lot of people vouch for its durability.

The actual number listed in the wood profile is the amount of pounds-force lb f hatdness newtons N required to imbed a. The chart is not to be considered an absolute; it is meant to help people understand which woods are harder than others.

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Janka Hardness | The Wood Database

End testing is also sometimes done that is, testing the cut surface of a stump would be a test of end hardness. Lumber stocks tested range from 1″ to 2″ thick. Alden Softwoods of North America. As you explore our wood options for your home, feel free to refer back to this chart to see where your wood choice ranks on the hardness scale.

In the United States, the measurement is in pounds-force lbf. It is also a good indicator of how hard a species is to saw or nail. How Bamboo Flooring is Manufactured. A measure of the hardness of wood, produced by a variation on the Brinell hardness test.

How Stable is Your Wood? Janka Hardness Using Nonstandard Specimens.

The hardness of wood usually varies with the direction of the grain. The results are stated in various ways in different countries, which can lead to confusion, especially since the name of the actual unit employed is often not attached. Antony Croft October 22, at 1: Depending on where the wood is harvested jankz results may vary.

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