Grade – Solid Pine lamellas ( Strips) edge glued to provide a solid panel. Lamellas are 40-55mm in width, allowing all kinds of healthy knots, well balanced pattern, firmly attached black knots, with a maximum diameter of about 15mm. Pith streaks and small amounts of firmly attached pith are permitted, but not exceeding 300mm in length. Knot and resin pocket repairs may be needed. The B face is a slightly lower quality.