Many species of walnut exist throughout the world, but the most common species in North America is Black Walnut. The tree grows generously across the continent, but doesn't necessarily yield as much wood as other larger species, such as oak and maple. Black Walnut's favorable working characteristics and rich color make it one of the most valued domestic lumbers
When considering Black Walnut for your hardwood floors it's important to know that Black Walnut is a wood with moderate hardness. Walnut sapwood is creamy white and sometimes tan, with heartwood ranging from rich dark brown to purplish black. The color difference between its sapwood and heartwood is very pronounced, which results in significant variations in color and grain between boards. In your hardwood floors, walnut shows minimal color variation when exposed to intense light.
Very Important to Note: Unlike other species, Black Walnut tends to lighten over time.
PurParket has a beautiful Walnut Natural in their wide plank, engineered hardwood floors. PurParket Walnut Natural hardwood flooring is coated with 100% VOC-Free natural oil that is derived from plants. Natural oiled floors can be re-coated as necessary to revive the finish without the need for re-sanding.
Click on the image below for more information about the PurParket, Wide Plank, Engineered Hardwood Floors.
Sources: NWFA/Mirage Hardwood Floors/Woodworking Talk.com