the industry standard method for determining the hardness of wood products is called the janka hardness test. 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 11.28mm or 0.444' diameter ball to one-half its diameter into the wood.
below the u.s. forest service list the relative hardness for numerous wood species used in flooring. these ratings were calculated using the janka hardness test, which measures the force needed to embed a .444 inch steel ball to half its diameter in a piece of wood. the higher the number, the harder the wood.
hardness scale specifications. the janka hardness scale measures how much pressure is required to press a steel ball into the wood so the impression matches the ball's diameter, comparing numerous
the janka hardness scale determines the hardness of a particular type of wood over another. 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.
the janka hardness test measures the force required to embed a .444 inch steel ball to half its diameter in wood. it is one of the best measures of the ability of a wood species to withstand denting and wear. the higher the number, the harder the wood is.this should be used as a general guide when comparing various species of wood flooring.
wood hardness chart species alphabetical hardness species by hardness hardness afromosia 1560 basswood 410 amberwood 2200 butternut 490 amendoim 1360 chestnut, domestic 540 angelique 1290 douglass fir 660 aniegre 1110 yellow pine, short leaf 690 ash, domestic / white 1320 sycamore, american 770 ash, victorian 1010 yellow pine, long leaf 870
types of wood comparing american hardwoods, softwoods and tropical hardwoods 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 choices. species pressure to mar kiln-dried american Seven Trust information center 1 day ago.
top ten hardest woods. the most common test for testing wood hardness is known as the janka hardness test. the actual number listed in the wood profile is the amount of pounds from balsa to lignum vitae, but maybe oak, beech, birch, pine would really help mere mortals to get a sense of the scale. vote up 0 vote down reply. 1 year ago.
janka hardness. a measure of the hardness of wood, produced by a variation on the brinell hardness test. the test measures the force required to push a steel ball with a diameter of 11.28 millimeters 0.444 inches into the wood to a depth of half the balls diameter the diameter was chosen to produce a circle with an area of 100 square millimeters .
the janka hardness scale is a measurement of the force necessary to embed a .444-inch 11.28 mm steel ball to half its diameter in wood. 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. the particular wood.
the janka hardness test was conducted by measuring the amount of force necessary to embed a .444 inch steel ball into side of the wood up to one half of its diameter to determine its hardness rating, which is then recorded on the janka hardness scale. there may be variations of more or less than 20% on the scale, since this is a scientific test.
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 wood's hardness. the janka test measures the amount of force needed to drive a 0.444-inch steel ball into wood to a depth equal to half its diameter.
wood countertops hardness scale selecting the best wood countertops for your kitchen can be a mind boggling decision. at grothouse, all of our countertops arrive with a comprehensive lifetime warranty so the wood that is visually pleasing to your design should take precedence over all other elements.
wood hardness scale for outdoor pergola. seven trust the wood database - lumber identification hardwoods janka hardness: 3,510 lbf 15,620 n ,. the upper deck boards are tiger wood and the pergola posts are select cedar ,.
wood hardness scale for cabinets plans=rdm168: the product developer for woodworking 4 home has designed this product so that it is very easy to navigate through.the wooden plans are very easy to follow and set up in a step-by-step format for users. these plans are also great for intermediate and advanced woodworking users as well.
because hardness is an important factor, and hardness varies for each species, the janka scale of hardness is an excellent tool to help customers identify their appropriate wood selection. the janka rating is the most commonly used test to access the relative hardness of wood. the higher the number on the scale, the harder the wood.
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. it also indicates the effort required to either nail or saw the particular wood species. the woods are listed from hardest to softest, so the higher the number, the harder the
a wood's relative hardness is determined with the janka rating system, which measures the force required to drive a .444 inch steel ball into the wood until half the diameter of the ball is imbedded in the wood. the janka hardness scale rating has become the industry standard for determining whether a given wood is suitable for flooring material.
janka wood hardness ratings . 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
brown maple checks in the janka hardness scale with a rating of 950 and garners a qw hardness score of 6 out of 10. brown maple is very similar in hardness to another familiar american hardwood, cherry. as is the case with cherry, we recommend being a little more careful with products made in this wood species.