This listing is for 10-packs of C Grade Baltic Birch Plywood sheets. When inspecting our BB/BB sheets for packaging I noticed a few that are less than perfect. These pieces have some slight imperfections that may include some dents, heavy mineral streaking, a football patch on both faces of the plank or marks on one or both sides.. Baltic Birch Plywood, 3 mm 1/8 x 12 x 20 Inch Craft Wood, Pack of 20 B/BB Grade Baltic Birch Sheets, Perfect for Laser, CNC Cutting and Wood Burning by Technology Island :. Or fastest delivery March 14 - 17. Details. Usually ships within 4 to 5 days. ... 3MM 1/8" x 12" x 12" Baltic Birch Plywood - B/BB Grade (Pack of 6) Perfect for Arts and Crafts, School Projects and DIY Projects, Drawing, Painting, Wood Engraving, Wood Burning and Laser Projects. "/>Baltic birch plywood 6 mm 14 x