wood flooring

Walnut (American Black)
  (Jaglans nigra)

 Color: Heartwood ranges from a deep, rich  dark brown to a purplishblack. Sapwood is  nearly white to tan. Difference between  heartwood and sapwood is great; some  manufacturers stean the wood to bleed the  darker heartwood color into the sapwood.

 Grain: Mostly staight and open, but some  boards have burled or curly grain.

 Properties: Hardness: 1010 Janka Table,  22% softer than Northern red oak Durability:  Moderately dense, very strong