SELECT & BETTER BIRCH SELECT & BETTER grade is ideal for fine cabinetry, furniture and molding manufacturing. BIRCH SELECT & BETTER grade includes all FAS2F and Select boards. Select boards must grade at least a Number 1 back and the face must grade a select. Widths: 3 3/8 inch admitting (by volume) 5 percent narrows (85.73 mm) minimum. Lengths: Length: 72 inch (182.88 cm) minimum. Minimum Size Cuttings: 4 inch (101.60 mm) wide by 36 inch (91.44 cm) and longer and 3inch (76.20 mm) wide by 72 inches (182.88 cm) and longer clear face cuttings. Reverse face grades Number 1 shop or better. Overall Minimum Yield:  83-1/3 percent clear 1 face cuttings, 66.33 percent clear #1 back.