Rubber Wood Hardness Scale

To give some quantification to the issue of wood species hardness the lumber industry created the janka hardness scale a standard now widely accepted as the best means of ranking a wood s hardness.

Rubber wood hardness scale.

The rubber tree gets its name from the commercially harvested milky latex it exudes when cut. The higher the number the harder the wood is this should be used as a general guide when comparing various species of wood flooring. The janka scale is used to determine the relative hardness of particular domestic or exotic wood species. There may be variations of more or less than 20 on the scale since this is a scientific test.

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. Rubberwood lumber is typically taken from rubber plantations where the trees are tapped for latex and harvested at the end of their useful life cycle typically after about thirty years. For beginners wood charts. It is one of the best measures of the ability of a wood species to withstand denting and wear.

Home articles faq s hardwood flooring 101. Density hardness stiffness and strength hardness chart hardness chart acacia 1 750 lbs. Rubberwood is used only after it completes its latex producing cycle and dies. 3 eco friendly to the max.

This latex is used to make rubber. Woods with a higher rating are harder than woods with a lower rating. 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. The scale used in the table is pounds force.

On a hardness scale alder ranks just above pine and poplar. Tyres gumboots rubber bands rubber hoses the list goes on and on. 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. Rubberwood is a whitish lumber that gradually fades to a light brown over time.

Furniture cabinetry interior millwork kitchen woodenware cutting boards knife blocks etc and other small specialty wood items. In other words this wood is extremely eco friendly in the sense that we use what was supposed to go to waste. The janka hardness test measures the force required to embed a 444 inch steel ball to half its diameter in wood.