Clear - A flooring product selected for its rich red-brown coloration and minimal character marks. The face is composed of 100% naturally colored heartwood. Will admit small tight checks; a minimal number of slight edge defects (indentations); small burls; limited pin knots; fine pin worm holes; a thin black streak, 3' in 2'; a sound gum pocket 1/16" x 1' per foot. Select - A flooring product with natural coloration variations found in heartwood and a small amount of contrasting sapwood, along with allowable characters. Will admit ½" bright sapwood entire length of strip or equivalent; a small tight ¼" knot every 3'; slightly open shallow checks, ½" per foot; edge defects (indentations) less than 2/32" x ½" for every 2'; intermittent machine burn; narrow black streaks not running the entire length; a gum pocket 1/8"x 1" per foot and pinworm holes (2 per foot). #1 common - A flooring product, which may contain prominent color variation between the light sapwood and dark heartwood, along with prominent natural and machine, produced characters. Will admit broken knots up to ½" with no loose pieces, must readily fill; numerous checks up to 1/16" open and not extending through piece; edge defects (indentations) up to 3/32" x 1-1/2" in aggregate for every 3'; occasional solid machine burns; a small area of rough face showing minor saw marks; unlimited sapwood; sapwood may be stained, splotchy, and include unlimited sticker stain; may have heavy streaks and dark discoloration up to 50%; open fillable gum pockets; worm holes 1/8", 1 per foot; pin worm holes, 6 per foot. #2 common - A flooring product that contains sound natural variations and manufacturing imperfections of the forest product. All imperfections and open characters must be fillable. Will admit broken knots and knot holes where openings and loose areas do not extend through pieces. Edge defects (indentations) ¼" x ¼" if irregular. Not to extend through tongue and groove; dark machine burns not more than 3/64" deep; prominent open checks not extending through piece; angled worm holes 3/16" x ½" long with all other worm holes if sound; unlimited dark discoloration and streaks to include stained sapwood and unlimited sticker stain; open gum pockets to 1/8" wide.