Sample is ¾-by-1½ inchsquare-edge solid strip.
Top portion is finished with water base urethane; bottom with oil modifiedpolyurethane.
COLOR: Sapwood is gray-white; heartwood is salmon red to orange-brown when fresh, and becomes russet or reddish brown when seasoned; often marked with dark streaks.
GRAIN: Mostly interlocked; texture is medium to rather coarse.
VARIATIONS WITHIN SPECIES AND GRADES: Moderate to high color variation.
HARDNESS (JANKA): 2350; 82% harder than Northern red oak.
DIMENSIONAL STABILITY: Average (change coefficient .00300; 19% more stable than red oak). However, actual installations have demonstrated significant movement in use.
DURABILITY: Dense and very strong.
SAWING/MACHINING: Sawing is difficult due to high density; requires frequent resharpening of tools. Planing is difficult due to interlocked grain. Can be machined to a smooth surface. Carbide tooling recommended.
SANDING: Sands well.
NAILING: Good holding ability, but due to hardness may require adjustment of angle of penetration and/or height.
FINISHING: No known problems.
COMMENTS: Light-sensitive; darkens rapidly upon exposure to sunlight.
(relative to plainsawn select red oak)