PREMIUM GRADEThe grades are based on the percentage of clear, defect-free wood in the board. With Premium Grade, each piece is individually inspected to ensure premium quality, durability and appearance. Visually, Black Locust is known for its knots, mineral streaks, checks, minor grub holes, and bark insertions. To ensure superior appearances, only the most appealing pieces qualify as Premium Grade. Sound included knots, 3″ in diameter and less, minor mineral streaks and small bark insertions are admitted to highlight characteristics of the Black Locust species. Checks less than 1/12th of the board length are also admitted.
NO.1 GRADEWith No.1 Grade, each individual piece of Black Locust is carefully inspected to ensure quality and durability. Visually, Black Locust is known for its knots, mineral streaks, checks and bark insertions. All sound knots are admitted in this grade. All other characteristics that do not affect the durability of this product are also admitted — surface checks, mineral streaks, bark insertions, and grub holes. A popular product, without the premiere price.