The John Boos R-Board 18 × 12-inch walnut cutting board is a 1.5-inch thick reversible edge-grain block in dark American black walnut — the premium hardwood upgrade from maple.
John Boos has manufactured walnut cutting boards in Effingham, Illinois since 1887. American walnut is softer than maple, easier on knife edges, and develops a rich darker patina over time. A premium gift-grade alternative to the maple workhorse.
Use the R-Board Walnut 18×12 for serious knife-care kitchens, gift purposes, and any home cook who appreciates the visual presence of walnut grain. Hand wash, dry standing, oil weekly.






