This is an engineered floor product.
Unfortunately I do not have all of the information on this product since it is a special buy.
Engineered Hardwoods and the Janka Scale.
The Janka scale chart is not to be considered an absolute; it is designed to help people understand which woods are harder than others.
The Janka Hardness test is done in accordance with ASTM D 1037-7 testing methods. Lumber stocks tested ranges from 1" to 2" thick. (Resulting Janka Hardness Numbers are an average.) It important to note that no testing is done on flooring (but is done on “solid” wood species).
The Janka hardness test measures the resistance of a type of wood to withstand denting and wear. It measures the force required to embed an 11.28 mm (0.444 in) steel ball into wood to half the ball's diameter. This method leaves an indentation. A common use of Janka hardness ratings is to determine whether a species of wood is suitable for use as flooring.
Other factors that affect how flooring performs: type of core for engineered flooring like: pine, hdf (high density fiber board) , poplar, oak, birch....etc.. When choosing an engineered floor (other than the species) consider grain direction and thickness floor or top wear surface of the product, engineered hardwoods with thicker wear layers (more actual hardwood) will offer more resistance to dinging than ones with much thinner wear layers. The hardness ratings should not be the only deciding factor when selecting any hardwood floor.
Thank you for your inquiry.
Answered on 12/1/2014 by cc-2