Oak of American origin and trade are of two “species”. White White oak and red. Homogeneous wood with differences in the colors and texture of the water. White oak is a heavy wood (760 kg / m3) similar to the European Oak with brown-yellow and gray wide waters, with large pores, and relative unevenness in texture, and presents the phenomenon of chrysalis when the pressure is radial. Red oak is a more even and heavier wood, with pink tones in color and water gray-yellow. (It does not show the phenomenon of chrysalis.) It is a porous wood, of indifferent beauty, when its waters do not form spears.