RUSSIAN (BALTIC) GRADE RULES GradeDescriptionB GradeOne piece sanded face with even color. No patches, voids or mineral streaks allowed.BB GradeOne piece sanded face with generally even color. Slight pin knots and mineral streaks allowed. Open knots and defects are cut out and replaced with oval patches.CP GradeThis is a fall down from BB with more patches on the face that …

RUSSIAN (BALTIC) GRADE RULES GradeDescriptionB GradeOne piece sanded face with even color. No patches, voids or mineral streaks allowed.BB GradeOne piece sanded face with generally even color. Slight pin knots and mineral streaks allowed. Open knots and defects are cut out and replaced with oval patches.CP GradeThis is a fall down from BB with more patches on the face that …

Birch Plywood – BB Grade – EN636-2  EN314-2PEFC and FSC® certified, also CE Marked Birch Throughout – B/BB & S/BB Grade – EN636-2  EN314-2  Class 3PEFC and FSC® certified, also CE Marked Birch Throughout – BB/WG & BB/CP Grade – EN636-2  EN314-2  Class 3PEFC and FSC® certified, also CE Marked Birch Throughout – CP Grade – EN636-2  EN314-2  Class 3 …