Hardwood Industries, Inc. www.hardwoodind.com White Oak Hardwood Industries, Inc. hardwoodind.com Grade: Page # 4/4 5/4 6/4 8/4 10/4 12/4 Superior Prime 5 x Superior H.I. 6 x x x x x x Superior H.I.Wide 7 x 1 & Better Special 8 x x x x x x Cabinet Prime 9 x Cabinet H.I. 10 x x Rustic H.I. 11 x x Rustic H.I.Wide 12 x Superior H.I. Rift 14 x x x x Superior H.I. Rift A 15 x Superior H.I. Rift B 15 x Cabinet H.I. Rift 16 x Superior H.I. Quarter Sawn 17 x x x x Superior H.I. Quarter Sawn B 18 x Cabinet H.I. Quarter Sawn 19 x Grade: Page # H2F to 90/70 90/70 to 70/50 100/50 to 90/0 Less than 70/50 Superior Prime 5 x Superior H.I. 6 x x x Superior H.I.Wide 7 x x x 1 & Better Special 8 x x x x Cabinet Prime 9 x Cabinet H.I. 10 x x x Rustic H.I. 11 x x x x Rustic H.I.Wide 12 x x x x Superior H.I. Rift 14 x x x x Superior H.I. Rift A 15 x x x x Superior H.I. Rift B 15 x x x x Cabinet H.I. Rift 16 x x x x Superior H.I. Quarter Sawn 17 x x x x Superior H.I. Quarter Sawn B 18 x x x x Cabinet H.I. Quarter Sawn 19 x x x x Grade Summary H.I. Brand White Oak Heart Content Summary H.I. Brand White Oak Grades by Thickness 12/4 10/4 8/4 6/4 5/4 4/4 15/16" 1-3/16" 1-7/16" 1-15/16" 2-7/16" 2-15/16" Heartwood The darker colored wood formed when older sapwood "retires", and becomes the strong spine of the tree. Pin Knot A knot which doesn't exceed 1/8" in average diameter is considered a defect in White Oak. The outer, lighter colored wood is the sapwood. This is the "working" part of the tree, as nourishment flows through the sapwood. Sapwood Scientific Name: Quercus alba Common Names: American White Oak, Appalachian White Oak Average Dried Weight: 3.92 lbs/BF Janka Hardness: 1,350 lbf White Oak