Koa Hardwood Flooring Hardness

Woods with a higher rating are harder than woods with a lower rating.

Koa hardwood flooring hardness.

It is one of the best measures of the ability of a wood species to withstand denting and wear. 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. I know of no other wood possessing the chatoyancy or range of colors of koa. The janka test measures the amount of force required to embed a 0 444 steel ball into the wood to half of its diameter.

It measures the force required to embed an 11 28 millimetres 0 444 in diameter steel ball halfway into a sample of wood. Brazilian koa saw cuts brazilian koa tigerwood flooring brazilian koa tigerwood custom stairs brazilian koa tigerwood flooring 2. Koa is widely considered to be the most beautiful and useful of hawaii s native hardwoods and along with monkey pod and mango it is the most common hawaiian species to be imported into the lower 48 united states. The janka hardness scale determines the hardness of a particular type of wood over another.

The janka hardness test from the austrian born emigrant gabriel janka 1864 1932 measures the resistance of a sample of wood to 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. Choosing an exotic hardwood that is not only stunning in its appearance but is known to be durable and last the test of time is a smart investment. Astronium spp lumber name.

Forest service list the relative hardness for numerous wood species used in flooring. Goncalo alves grows in. Throughout the wood flooring industry the janka hardness chart is recognized as the main source for questions related to the density and relative hardness of both domestic species as well as exotic wood species from around the world. Brazil bolivia peru guatemala mexico tigerwood is a boldly striped species which has an orange reddish brown background with wide dark brownish black striping which we liken to the striping found in vanilla fudge ice cream.

The problem with koa. The spirit of the volcano lives in this tree and radiates from the lumber. The scale used in the table is pounds force. Visually koa has been compared to mahogany while in terms of working and mechanical properties it has been compared to walnut.

Brazilian koa available in prefinished and unfinished formats. 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. Relative hardness of wood flooring species. The janka hardness test measures the force required to embed a 444 inch steel ball to half its diameter in wood.