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JANKA RATINGS, Janka hardness test measures, Wood Flooring ,Grading Rules AND Descriptions, Grading Standards,inspection checklist ,quality control ,sourcing service ,Testing ,quality assurance,QC,GRADERS,INSPECTORS
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JANKA RATINGS
The Janka hardness test measures the force necessary to embed an 11.28mm (.444) steel ball into a wood sample half the ball’s diameter. The common use of this scale is to determine if a species is suitable for flooring and the depth of the indention.
It should be noted the tests are not conducted on actual flooring, and the types of wear layer and construction of the floor also contribute to its dent resistance. Please keep in mind that no hardwood flooring is dent or scratch proof.
The Janka ratings for our wood are as follows:
Walnut = 1010
Good flooring for low traffic rooms such as bedrooms and living rooms. For more information on the Janka rating, refer to the American Hardwood Association, http://www.hardwoodinfo.com/articles/view/pro/22/276.
Birch = 1260
Comparable in durability with Maple or even Oak, birch is a recommended choice for the price-point conscious consumer. For more information on the Janka rating, refer to the American Hardwood Association, http://www.hardwoodinfo.com/articles/view/pro/22/276.
Oak = 1333
Good option for high traffic, residential flooring. For more information on the Janka rating, refer to the American Hardwood Association, http://www.hardwoodinfo.com/articles/view/pro/22/276.
Maple = 1450
Recommended for use in high traffic, residential flooring. For more information on the Janka rating, refer to the American Hardwood Association, http://www.hardwoodinfo.com/articles/view/pro/22/276.
Hickory = 1820
Hickory is the hardest, heaviest and strongest American wood. It is extremely dense and resilient, and has a very high Janka rating. For more information on the rating, refer to the American Hardwood Association, http://www.hardwoodinfo.com/articles/view/pro/22/276
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