Amtico Black Walnut 4 1/2 x 36 Black Walnut: 5.97 S/FT, covers 45.000 per S/FT, contains 23.000 per Box, measures 36.000 Inch long, 4.500 wide, weighs 30.000 lbs, in the Black color family, composed of Vinyl, has a Plank design, Smooth surface type, Beveled edge type, Square end type, has a 20 year warranty