It is one of the best measures of the ability of a wood species to withstand denting and wear. Tagged with hardness of wood, janka hardness scale, wood hardness. It is generally accepted that any wood that measures between 850 and 1600 on the janka hardness scale is a good choice for a cutting board. Jul 03, 2015 wood hardness chart bigger, better, more woods july 3, 2015 june 30, 2015 by best bass gear with our last wood hardness chart, several noted that there were certain woods missing that should be in the list, so weve expanded the list to 224 different species. Minerals with a higher number can scratch the ones with the same or. Wood hardness chart bigger, better, more woods july 3, 2015 june 30, 2015 by best bass gear with our last wood hardness chart, several noted that there were certain woods missing that should be in the list, so weve expanded the list to 224 different species. The janka hardness test measures the resistance of a sample of wood to denting and wear.
Janka hardness scale learn how hard each wood species is. The shore 00 hardness scale measures rubbers and gels that are very soft. The janka scale is used to determine the relative hardness of particular domestic or exotic wood species. The resulting data is expressed in poundsforce, or lbf this industry standard assessment is designed to gauge the various wood species hardness, determine its suitability as flooring, and illustrate its tolerance to. Janka wood harness testing the janka hardness test method measures the amount of force required to embed a. The janka hardness scale is a measurement of the force necessary to embed a. If you have children or animals, very soft wood like pine. Janka wood hardness scale janka rating for all species. These ratings were calculated using the janka hardness test, which measures the force needed to embed a. Wood hardness testing comes a bit late when a new hardwood floor is installed and it becomes indented by high heel shoes a pebble, furniture legs or other method. Janka hardness scale impressions flooring collection. The janka test measures the force required to embed an 11.
In fact, there are a now a couple of different tests, but the traditional method is known as the janka hardness test, named for austrian wood researcher gabriel janka, who invented it in 1906. Though no wood on the scale has this rating, a rating like this would not make for a good floor. Take the best from tiger wood and leave it with hard wood with extreme strength and endurance. The janka hardness scale determines the hardness of a particular type of wood over another. Depending on the room where the flooring will be installed, a certain level of hardness may make it a more desirable choice. For wood hardness is a measure of resistance to dent and wear. Hickory pecan, satinwood 1820 afzelia doussie australian wormy chestnut 1810 bangkirai 1798 rosewood 1780 african padauk 1725. While very hard and durable, in reality, oak ranks as the fourth hardest of the north american hardwoods. Janka hardness scale janka hardness measurements reflect the number of pounds pressure it takes to press a. Wood hardness chart bigger, better, more woods ebass. The janka test was developed as a variation of the brinell hardness test. Janka wood hardness scale quality amish furniture hardness. The test measures the force required to push a steel ball with a diameter of 11.
The janka test is a measure of the hardness of wood. The only scale used for hardened steel is the rockwell c scale. The janka hardness scale is a specification that pertains to the hardness of wood. Pdf janka hardness rating of malaysian timbers researchgate. The janka test measures the amount of force needed to drive a 0. The hardness of the wood according to brinell scale is calc. Aug 26, 2015 the janka hardness scale starts at 0 and goes through 4000, with 4000 being an extremely hard wood, so hard it is difficult to saw. A harder wood will stand up to high traffic or heavy use better than a softer wood, but it will also be more difficult to sand or hammer a nail into. The hardness of wood reflects its durability and is measured on the janka hardness scale.
A woman can damage hardwood faster than an elephant. The hardness of wood varies with the direction of the wood grain. The janka hardness scale not just a number gaylord flooring. The janka hardness test from the austrianborn emigrant gabriel janka, 18641932 measures the resistance of a sample of wood to denting and wear. Choose the type of wood that is ideal for your needs. The janka wood hardness scale is a way to measure a woods resistance to dents, scratches and wear. All of the woods we offer are durable, longlasting hardwoods, so this metric might carry more weight with some people than it does with others. Estimating janka hardness from specific gravity for tropical and. To understand better the differences between wood species we have janka hardness scale or janka wood chart. Hardness of a mineral may be obtained by the mohs scale of hardness shown in table 22. The industry standard method for determining the hardness of wood products is called the janka hardness test. Forest service list the relative hardness for numerous wood species used in flooring.
The janka scale rates the relative hardness of wood. The wood handbook fpl 1999 contains side hardness measurements for most domestic. 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. The industry standard for hardness the hardness of a wood is rated on an industry wide standard known as the janka test.
The hardness of the wood according to brinell scale is calculated by dividing the weight. The higher the number on the scale, the harder the wood. Red oak is used as the standard and its hardness is 1,290 on the janka scale. The higher the number, the harder and generally more durable the wood will be. The janka hardness test is the wood hardness scale that measures the hardness of wood. The janka hardness scale, used to determine whether or not a wood species is suitable for flooring, is the primary test measuring woods resistance to wear and dentability. In the flooring industry both janka wood hardness testing and brinell wood hardness testing are used to measure the amount of indentation into the wood using force.
The janka test measures the amount of force required to embed a 0. This wood hardness chart is showing the janka hardness ratings of all wood species used in flooring and decking applications. The best wood for hardwood flooring typically falls above on the scale. Similar to a laminate ac rating, the hardwood floor hardness determines the durability of the species. The janka scale can help you choose an appropriate wood for your project. We have listed some of the most popular choices in wood flooring and included some more exotic species. A measure of the hardness of wood, produced by a variation on the brinell hardness test. The janka hardness values and hardness grades for some common wood species. Apr 18, 2015 hardwood hardness scale hardwood hardness scale hickory sapele hardness australian hardwood hardness scale solid hardwood hardness scale janka wood hardness rating resistance to denting 1180.
Because hardness is an important factor, and hardness varies for each species, the janka scale of hardness is an excellent tool to help identify appropriate. Any more than 1600 will mean that it will be tough on the knifes edges. When in doubt about the type of wood to select for your cabinetry, flooring, furniture or millwork project, refer to the janka rating system, which measures the relative hardness of woods. Janka wood hardness chart hosking hardwood flooring. The janka or side hardness test, measures the force poundssquare inch required to embed a. Common red oak with an average janka rating of 1290 is the industry benchmark lor comparing the relative hardness of different wood species bamboo tested on morning star bamboo brand which uses a more mature bamboo 4 year minimum the most commonly used test to assess the hardness of wood is the janka rating scale. At the lower end of the scale would be a handsaw, commonly rc3842. Mar 27, 2012 in fact, there are a now a couple of different tests, but the traditional method is known as the janka hardness test, named for austrian wood researcher gabriel janka, who invented it in 1906. It evolved from the brinell scale, a standardised hardness test developed for the engineering and metallurgy fields and has been in use since 1922 and became an astm standard in 1927. Our chart is based on the janka hardness scale which is the industry standard for gauging the ability of various wood species to resist denting and tolerate normal wear.
Janka hardness scale for woods the janka scale is the industrystandard measurement for wood hardness, specifically its resistance to denting. Woods with a higher rating are harder than woods with a lower rating. The soft map on the back of the coin is relatively easy to use. Some wood properties of xylia xylocarpa planted in sabah. Wood hardness janka scale the wood hardness janka scale is a table of popular woods listed by the hardness or resistance of the species of wood to be able to withstand wear, scratching, and denting. F101 janka hardness scale lumber liquidators flooring co. The janka hardness scale not just a number gaylord. Semirigid plastics can also be measured on the high end of the shore. W and others published janka hardness rating of malaysian timbers find. A common use of janka hardness ratings is to determine whether a species is suitable for use as flooring. Jul 15, 2018 take the best from tiger wood and leave it with hard wood with extreme strength and endurance. The shore a hardness scale measures the hardness of flexible mold rubbers that range in hardness from very soft and flexible, to medium and somewhat flexible, to hard with almost no flexibility at all. Understanding the janka wood hardness scale woodco, ltd.
Hickory pecan, satinwood 1820 afzelia doussie australian wormy chestnut 1810 bangkirai 1798 rosewood 1780 african padauk 1725 blackwood 1720 merbau 1712 kempas 1710 black locust 1700 highland beech 1686 wenge, red pine, hornbeam 1630 tualang 1624. The janka hardness test measures the amount of force that is required to push a 0. To give some quantification to the issue of wood species hardness, the lumber industry created the janka hardness scalea standard now widely accepted as the best means of ranking a woods hardness. The janka or side hardness test measures the force required to embed a. A good way of choosing a wooden cutting board based on its hardness is to go by the janka hardness scale. Nov 05, 2007 the janka hardness scale is a measurement of the force necessary to embed a.
The test measures the force required to embed a standardsized steel ball of 0. Janka hardness scale fossilized the worlds hardest floors. Janka hardness scale for wood side hardness chart of some woods usda wood. The highest rating on the scale is a 4000, making for an extremely hard wood, also not likely suitable for flooring because. The hardest commercially available hardwood is hickory, and it is five times harder than aspen, one of the soft hardwoods. The janka wood hardness rating scale is determined by the janka hardness test. The janka test measures the force n, lb f required to embed an 11. The hardness of wood is calculated by a test that measures the force needed to embed a. In other words, the hardness rating is the woods resistance to indentation under a controlled force during testing. Feb 18, 2015 the janka hardness scale is also an excellent indicator of the effort required to drive a nail through a particular type of wood. This is the industry standard for determining the ability of different species to tolerate denting and normal wear and tear. The janka hardness test measures the resistance of a type of wood to withstand denting and wear.
Understanding the janka scale, hardness, and stability. Types of wood american hardwood information center. The janka hardness scale is determined by a controlled test, performed to measure the force necessary to embed a. A higher number means the mineral is harder than the next lower number. By the same token, it is also a good indicator of how hard or easy a species is to saw or nail. A 10millimeter diameter steel ball with a definite force depending on the density of the material is pressed against the surface of the selected timber. The janka hardness test measures the force required to embed a. The janka hardness scale starts at zero, with this option being the softest wood choice, making it easy to dent and scratch. In essence, the higher the number on the scale, the harder the wood. Complete listing of janka ratings for exotic and domestic hardwoods. The janka wood hardness scale is determined by measuring the amount of force that is required to press a steel ball 11. The rockwell system has many scales, of which the a, b and c are most commonly used, to measure the relative hardness of different materials, primarily metals.
In the picture above, the orange reflects the hardness while the violet reflects stability. The physics handbook ask the question, what exerts more pressurepersquare inch when walking a 100 lb woman in high heels or a. The following chart will give you a hardness measurement. Wood hardness chart species alphabetical hardness species by hardness hardness mahogany, honduran 800 padauk 1725 mahogany, santos 2200 tabaccowood 1750 maple, hard north american 1450 rosewood, bolivian 1780 maple, ivory 1500 bamboo, carbonized 1800 maple, soft 999 hickory 1820 merbau 1925 pecan 1820 mesquite 2345 yellowheart 1820.
A common use of janka hardness ratings is to determine whether a species. It is the industry standard for gauging the ability of various species to tolerate denting and normal wear, as well as being a good indication of the effort required to work nail, saw, carve, etc. Hickory, with a janka hardness rating of 1820, leads the pack, followed by maple and then ash. I should give you a 5 but i wish there was a way to download the chart into an excel file. What is the significance of a rockwell hardness rating. The janka hardness scale starts at 0 and goes through 4000, with 4000 being an extremely hard wood, so hard it is difficult to saw. Janka wood hardness scale janka rating for wood decking. Bamboo is a bit harder at 1,380 see my past blog on bamboo flooring is it hard or soft. The janka rating scale was created to rank the various degrees of hardness throughout the different species of hardwoods. These figures are a good indicator of how resistant the wood is to denting and wear. Hickory pecan, satinwood 1820 afzelia doussie australian wormy chestnut 1810 bangkirai 1798 rosewood 1780 african padauk 1725 blackwood 1720 merbau 1712 kempas 1710 black locust 1700 highland beech. This should be used as a general guide when comparing various species of wood flooring. May 23, 2017 the janka wood hardness rating scale is determined by the janka hardness test. It determines the hardness of wood by measuring the force required to push a steel ball with a diameter of 11.
Janka hardwood scale this scale is the worldwide standard for gauging the ability of various species of wood to endure normal wear and tear. Janka hardness of a given wood species is defined by a resistance to indentation test as measured by the load pounds of pressure required to embed a 11. The hardest commercially available hardwood is hickory, and it is five times. Janka hardness chart for exotic wood and domestic wood.
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