The industry standard method for determining the hardness of wood products is called the janka hardness test. Relative hardness of selected wood flooring species ranked by janka hardness rating 3680 3540 the janka or side hardness test measures the force required to embed a. Wood hardness chart species alphabetical hardness species by hardness hardness mahogany, honduran 800 padauk 1725 mahogany, santos 2200 tabaccowood 1750 maple. The test also determines how well wood can withstand dents, dings, and. Meyers hardness test determined the fundamental measure of violence depending on the average pressure applied to induce reentry.
The janka rating scale was created to rank the various degrees of hardness throughout the different species of hardwoods. For example, turkish researchers measured janka hardness and brinell hardness for eastern beech and then used linear regression to determine how closely they were related. Timber wear, tear and hardness including janka ratings. The scale was created to show the janka hardness test results. The janka rating is a measure of the amount of force required to push a. Here we will present to you our hardwood flooring hardness guidelets begin. The janka hardness scale is a measurement of the force necessary to embed a. To find this number, a steel ball is pushed halfway into a 2 x 2. 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 astm.
Basically, the scale should be used as an overall guide for durability. The test computes the pounds of force lbf one requires to drive one 0. Janka hardness chart for exotic wood and domestic wood. The janka hardness scale runs from zero softest to 4,000 lbs hardest. The janka scale can help you choose an appropriate wood for your project. Throughout this guide, youll read about hardwood flooring based on its janka rating or the janka hardness scale. The higher the janka rating, the more resistant that particular wood is. Janka hardness scale learn how hard each wood species is. Results no difference in janka hardness was found for thickness values. Janka hardness test measure the hardness or density of wood. Janka hardness of a given wood species is defined by a resistance to. Janka events, although mainly used for hardwood species, are often used to measure the density of bamboo floors.
Testing is done on samples, not on actual flooring. The janka test was developed as a variation of the brinell hardness test. The janka hardness rating indicates how high the relative hardness of a wood species is. The janka scale is used to determine the relative hardness of particular domestic or exotic wood species. The janka hardness scale should not be the deciding factor on which wood you will use for floors. The janka hardness scale not just a number gaylord. 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.
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. Common red oak with an average janka rating of 1290 is the industry benchmark lor comparing the relative hardness of. The janka test measures the amount of force required to embed a 0. The brinell test is very useful for construction materials. Janka wood hardness scale janka rating for all species. The janka scale gives a good indication of how well a wood species can be expected to withstand dents. This test measures the force required to embed an 11. The janka hardness test measures the resistance of a sample of wood to denting and wear. The janka scale ranks the hardness of a wood species. Janka hardness measurements reflect the number of pounds pressure it takes to press a. The janka or side hardness test, measures the force poundssquare inch required to embed a.
Understanding the janka rating scale best laminate. It is one of the best measures of the ability of a wood species to withstand dent ing and wear. The janka wood hardness scale is a way to measure a woods resistance to dents, scratches and wear. 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. Woods with a low rating on the wood hardness scale are those that will dent and scratch most easily. Raspberry jam acacia has a janka hardness rating of 3100 and a very low 5. The actual number listed in the wood profile is the amount of poundsforce lb f or newtons n required to imbed a. Woods with a higher rating are harder than woods with a lower rating. The janka test is often used to deduce bamboo flooring hardness. Janka hardness poundsforce australian buloke 5060 schinopsis balansae quebracho colorado red quebracho 4570 lignum vitae guayacan pockenholz 4500 patagonian rosewood curupay angico preto piptadenia macrocarpa brazilian tiger mahogany 3840 snakewood letterhout piratinera guinensis 3800 brazilian olivewood 3700 brazilian ebony 3692. The janka hardness test is a measurement of the force necessary. F101 janka hardness scale lumber liquidators flooring co. Does hardwood floor hardness matter lauzon flooring.
The janka test is a measure of the hardness of wood. It is the industry standard for gauging the ability of various species. Timber wear, tear and hardness including janka ratings june 25, 2014 when searching for a new timber floor, most people are looking for something that is hard wearing. Hickory pecan, satinwood 1820 afzelia doussie australian wormy chestnut 1810 bangkirai 1798 rosewood 1780 african padauk 1725. The scale was invented in 1906 by gabriel janka, an austrian wood researcher, and. The janka hardness test is the hardness level given to each species.
The janka hardness scale is determined by a controlled test, performed to measure the force necessary to embed a. Janka hardness scale definition and applications man. Hardwood flooring hardness guide janka hardness scale. Our chart is based on the janka hardness scale which is the industry standard for. This scale is the worldwide standard for gauging the ability of various species of wood to endure normal wear and tear. The janka hardness scale determines the hardness of a particular type of wood over another. The test measures the force required to push a steel ball. The janka test measures the hardness of wood so that wood species can be compared to one another.
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. The janka hardness test from the austrianborn emigrant gabriel janka, 18641932 measures the resistance of a sample of wood to denting and wear. The test measures the force required to push a steel ball with a diameter of 11. Hardwood flooring buying guide basics of buying by.
The janka hardness test measures the resistance of a type of wood to withstand denting and wear. Today, consumers of hardwood floors are on the hunt for a really high janka hardness rating. The hardness of solid wood is measured according to a system called the janka scale. Hardness is a measure of the resistance to localized plastic deformation induced by either mechanical indentation or abrasion. The janka hardness test is a measurement of the force necessary to embed a. 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 is used to measure the capacity of different species of wood to withstand pressure. The janka hardness chart was created as a result of the janka hardness test.
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