The sapwood of oak is white to very light brown, while the heartwood is light to dark brown in the white oak group and reddish brown in the red oak group. Oak wood has a course texture; it is heavy, straight-grained, hard, tough, very stiff, and strong. Fast-grown oak, with wide rings, is stronger and heavier than slow-grown oak.
Sizes available:
4/4, 5/4, 6/4, 8/4
Mechanical Properties:
Janka side hardness is 1290 lb. for dry material. Shrinkage green to ovendry: radial 4.0%, tangential 8.6%, volumetric 13.7%.
Working Properties:
Oak wood has good working properties. It machines and glues well and holds fasteners extremely well. It tends to split when nailed, unless predrilled. Oak finishes well, but shrinks considerably.
