White Oak

Common Name(s): White Oak Scientific Name: Quercus alba Distribution: Eastern United States Tree Size: 65-85 ft (20-25 m) tall, 3-4 ft (1-1.2 m) trunk diameter Average Dried Weight: 47 lbs/ft3 (755 kg/m3) Specific Gravity (Basic, 12% MC): .60, .75 Janka Hardness: 1,350 lbf (5,990 N) Modulus of Rupture: 14,830 lbf/in2 (102.3 MPa) Elastic Modulus: 1,762,000 lbf/in2 (12.15 GPa) Crushing Strength: 7,370 lbf/in2 (50.8 MPa) Shrinkage:Radial: 5.6%, Tangential: 10.5%, Volumetric: 16.3%, T/R Ratio: 1.9 Color/Appearance: Heartwood is a light to medium brown, commonly with an olive cast. Nearly white to light brown sapwood is not always sharply demarcated from the heartwood. Quartersawn sections display prominent ray fleck patterns. Conversely, Red Oak tends to be slightly redder, but is by no means a reliable method of determining the type of oak. Grain/Texture: Grain is straight, with a coarse, uneven texture.  Endgrain: Ring-porous; 2-4 rows of large, exclusively solitary earlywood pores, numerous small to very small latewood pores in radial arrangement; tyloses abundant; growth rings distinct; rays large and visible without lens; apotracheal parenchyma diffuse-in-aggregates (short lines between rays). Rot Resistance: Rated as very durable; frequently used in boatbuilding and tight cooperage applications. Workability: Produces good results with hand and machine tools. Has moderately high shrinkage values, resulting in … Continue reading White Oak