Practically free of defects, made up mostly of heartwood. Most uniform color, with limited small character marks.

Almost clear, with more of the normal characteristics such as knots and color varioations. Unlimited sound sap wood (lighter in color).

More markings than clear or select. Light and dark colors, knots and other character marks provide a variegated appearance. Often the common grades are selected because of their  natural, rustic appearance.

The most knots, imperfections and color variations. A natural looking, economical floor after knot holes, checks and other imperfections are filled and finished.