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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Pine Guy March 30, at 8: Depending on where the wood is harvested the hardbess may vary. Who could imagine a wood species that is over three times harder than White Oak? So, this would measure the ability of a wood be bulletproof?

Leave this field empty. There are many things to consider when choosing your wood, including hardneas hardness, natural colour of the wood, the grain and the stability. This page was last edited on 4 Decemberat These woods tend to take on moisture quicker than other species, so these floors should be installed immediately upon arriving at your home. How Bamboo Flooring is Manufactured. I have amassed over wood species on a single poster, arranged into eight major geographic regions, with each wood sorted and ranked jahka to its Janka hardness.

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Aspiring wood nerds be advised: Green, Marshall Begel and William Nelson.

sacle The tabulated Janka hardness numbers are an average. How Stable is Your Wood? In Sweden it is apparently in kilogram-force kgfand in Australia, Janka hardness ratings are either in newtons N or kilonewtons kN.

Janka Hardness | The Wood Database

By using this site, you agree to the Terms of Use and Privacy Policy. There is a standard deviation associated with each species, but these values are not given. In Sweden it is in kilograms-force kgfand in Australia, either in newtons N or kilonewtons kN.

From Wikipedia, the free encyclopedia. Properties of Seven Columbian Woods. Forest Products Lab, January We show bardness common name preferred by the Forest Products Laboratory. The Janka scale rates the relative hardness of wood. Retrieved 18 March The hardness of wood usually varies with the direction of the grain. The hardness of a wood is rated on an industry wide standard known as the Janka test. Save my name, email, and website in this browser for the next time Jania comment.

Alden Hardwoods of North America.

Janka hardness

Each wood has been meticulously documented and photographed, listed with its Janka hardness value in lbf and geographic and global hardness rankings. We have all the information you need to review your wood and find out which wood is best for you. In the United States, the nardness is in pounds-force. So just wanted to check with you too. Certain woods need to be dried longer in the mill, and some also need to be acclimatized in your home, to create a more stable presence.

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Sometimes the results are treated as units, e. Red Oak, which has a Janka rating ofis the industry benchmark for comparing the relative hardness of different wood species.

In the United States, the measurement is in pounds-force lbf. The actual number listed in the wood profile is the amount of pounds-force lb f or newtons N required to imbed a. We have listed some of the most popular choices in wood sfale and included some more exotic species for your reference and comparison. It is also a good indicator of how hard a species is to saw or nail. In Sweden it is in kilograms-force kgfand in Australia, either in newtons N or kilonewtons kN.

The pale blue background indicates species growing in North America.

Cypress, Southern Chestnut. In the United States, the measurement is in pounds-force lbf. Archived from the original on 26 April Marci July 3, at 5: Hardness information is in chapter 5.

Wood as an Engineering Material. I had a question — At what measure of hardness is a wood classified as a hardwood or softwood?

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