
Hardwood HardnessBelow are listed the relative hardness for numerous wood species used in flooring. These ratings were done using the Hardness Test, which measure 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. Although this is one of the best methods to measure the ability of wood species to withstand indentations, it should be used as a general guide when comparing various species of wood flooring. The construction and finish also play an important role in the durability and ease of maintenance of any wood floor. Hardwood styles are the result of the wood species available. Some of the more common species are red oak, white oak, maple, cherry, white ash, hickory or pecan. Each species has its own unique graining and texture. The graining on the boards is determined by the way it has been cut. There are two cutting processes. “Sliced Cut” shows a more uniform pattern, whereas “Rotary Cut” displays a larger and bolder graining pattern. Janka Hardness TestWood Species Hardness Rating Douglas Fir 660 Southern Yellow Pine (short leaf) 690 Southern Yellow Pine (Long leaf) 870 Black Cherry 950 Teak 1000 Black Walnut 1010 Heart Pine 1225 Yellow Birch 1260 Red Oak (Northern) 1290 American Beech 1300 Ash 1320 White Oak 1360 Australian Cypress 1375 Hard Maple 1450 Wenge 1620 African Pedauk 1725 Hickory 1820 Pecan 1820 Purpleheart 1860 Jarrah 1910 Merbau 1925 Santos Mahogany 2200 Mesquite 2345 Brazilian Cherry-Jatoba 2350
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