It measures the force required to embed an 11.28 millimetres (0.444 in) diameter steel ball halfway into a sample of wood. Serving Upstate NY—VT—MA • For selections & prices, CALL or EMAIL US Janka Hardness Scale for Wood Flooring Species. The Janka hardness scale, used to determine whether or not a wood species is suitable for flooring, is the primary test measuring wood’s resistance to wear and dentability. While it may be tempted to look for the species with the highest rating, it could be more trouble than it’s worth – if it’s even available. The Janka Scale was developed by the Austrian wood researcher named Gabriel Janka back in 1906. on: function (event, callback) { Jack Pine (Pinus banksiana) Wood species vary in many ways, but a key factor in finishing wood is the hardness of the wood. Free Samples! Good Thunder, MN 56037. Southern longleaf pine has a rating of 870 lb-ft. Douglas fir comes in between the types of pine, with its own rating of 660 on the Janka scale. The US typically will use lbf. All sawing will be completed at our Mankato, MN shop. The Janka Hardness Scale determines the hardness of a particular type of wood over another. listeners: [], Slash Pine (Pinus elliottii) } Janka values represent the amount of pound-force that is required to partially embed a small steel ball into the surface of the wood. We are not offering onsite sawing at this time! Copyright 2019. Janka Wood Hardness Scale The Janka rating is a measure of the amount of force required to push a.444" diameter steel ball half way into a piece of wood. All Rights Reserved. Southern yellow pine (shortleaf and Loblolly) has a rating of 690. A Janka rating of zero indicates that the wood is much too soft to be used in flooring or for any purpose that requires a durable lumber. If there is a species you would like to see listed that isn’t in the list below, just post a comment and be sure to list the wood species name and Janka hardness number along with it (and country of origin, if possible.) (function() { Pond Pine (Pinus serotina) The Janka hardness test is a measurement of the force necessary to embed a .444-inch steel ball to half its diameter in wood. True pine has a Janka rating of 1570, Carribean heart pine is 1280, red pine is 1630, longleaf southern yellow pine is 870, both shortleaf and loblolly southern yellow pine are 690, white pine is 420, and eastern white pine ranks in at 380 to give a few specific numbers. Shortleaf (Southern Yellow) Pine (Pinus echinata) Yellow Pine, Long Leaf 870 Olivewood, Brazilian 3700 Yellow Pine, Short Leaf 690 Patagonian Rosewood 3840 Yellowheart 1820 Brazilian Tiger Mahogany 3840 Zebrawood 1575 Curupy 3880 Reclaimed Wood, because of its age, generally has a higher Janka rating than virgin wood of the same species. It is a flooring 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 either nail or saw the particular wood. Pine on average does not require an abnormal amount of effort to saw properly. The actual number listed in the wood profile is the amount of pounds-force (lb f) or newtons (N) required to imbed a .444″ (11.28 mm) diameter steel ball into the wood to half the ball’s diameter.This number is given for wood that has been dried to … It is between longleaf and shortleaf southern pine in hardness, is forty-three percent softer than white oak, about forty-seven percent softer than wenge, and is only … Please note that this is just a partial list containing some of the most popular choices for woods we work with. The Janka scale is used to determine the relative hardness of particular … True pine has a Janka rating of 1570, Carribean heart pine is 1280, red pine is 1630, longleaf southern yellow pine is 870, both shortleaf and loblolly southern yellow pine are 690, white pine is 420, and eastern white pine ranks in at 380 to give a few specific numbers. Carribean (Heart) Pine (Pinus caribaea) The Janka scale measures the resistance of a sample of wood to denting and wear and is typically expressed in lbf (pounds-force) or N (Newtons). You might find this species in some very low-end furniture, but it is generally considered too soft to use for home furnishings and finishes. callback: callback A measure of the hardness of wood, produced by a variation on the Brinell hardness test. Pine species do not usually have a high resistance to decay, but they do have a propensity to absorb preservatives rather well. The Janka test measures the force required to embed an 11.28mm steel ball halfway into a piece of wood. Janka Hardness Ratings of Wood Species . Pine woods can vary widely in hardness from species to species. })(); Copyright ©2018 U.S. 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. What is the Janka Scale? window.mc4wp.listeners.push({ In laymans terms it is a way to measure a woods resistance to denting. Scrub Pine (Pinus virginiana) The Janka Hardness Scale is determined by a controlled test, performed to measure the force necessary to embed a .444 inch (11.28mm) steel ball to half its diameter in wood. On average, the various species sand better than white oak but the softer varieties can sometimes marr under heavy traffic. Scots Pine (Pinus sylvestris) Online or in store. Trying to figure what what wood specie you want to use for a project? Janka hardness testing. It is important to remember that the testing process used in the Janka scale is an impact test, not a test of scratching, scuffing, or any other wear and tear that flooring experiences. Eastern White Pine (Pinus strobus) Get 4 Free Online Samples With Free Shipping! forms : { There may be variations of more or less than 20% on the scale, since this is a scientific test.
2020 pine janka scale