3- Rustic Kiln Dried White Oak Lumber Boards/Shelf Slabs 14176-14178Wood Type : Oak Front Side Tapers : Taper in Thickness leaving Unsurfaced Areas on Slab up to 1 8 Deep x 3 Wide x 10 1 2 Long Cracks : Cracks Splits up to 1 16 Wide x 4 1 4 Long Inclusions & Voids : Rustic Inclusions Voids up to 1 2 Deep x 1 1 2 Wide x 4 Long, Some go Through Full Thickness of Boards Bow : Up to 1 16 Cup : Up to 1 16 Twist : Up to 1 16 Worm Holes Rot : Small Worm Holes Sticker Marks : Some Sticker Marks on Unplaned Areas Planer Snipe