The Authentic grade is high in tonal contrasts, showcasing the full range of vivid natural colors found in the species. Pronounced variation between boards. Sound knots and knots filled with wood putty (including slight openings or depressions) are accepted without limitation. Openings in and around knots are accepted. Mineral streaks are accepted without limitation. Surface splits and checks and end splits are accepted in this grade. Varnish cracks around character marks are accepted in this grade.
Hickory is a dense, closed-grain wood with visible growth rings. Its color is characterized by a wide range of tones and variations, from golden beige to an intense blackish brown. Prominent character marks give it a rustic, natural look. Hickory undergoes a slight change in color over time, acquiring a golden hue.