More than 200 subspecies of oak are found in North America. The Northern Red Oak is found all over the eastern United States and in the southeast of Canada. However, because of the climate, the northern and southern Red Oak are different. Further north, the hard winters slow growth and yield a harder wood. Trees can reach a height of 38 m (125 ft) and show a wide diameter

 

The sapwood of the oak ranges from white to pale brown, while the heartwood 

Heartwood
The part of the tree right below the sapwood, in the core of the three. It is generally darked in color. is reddish brown. A fast-growing oak with wide rings is heavier than an oak that grows more slowly. The slower-growing variety has a more even grain than the southern species, with many more growth rings per inch

Color variation:

Minimal color variation on exposure to intense light. Variation can be slowed and reduced by applying UV protection at the finishing stage.

Marks on strips:

Marks, scratches, or imperfections are not very noticeable due to oak's open grain and natural reddish color.