| Species | Thickness | Grade | Region | Dryness |
| Black Walnut | 4/4 | 6R - Rustic | Northern | Kiln Dried |
“6R” Rustic
Characteristics of our Proprietary “6R” include but are not limited to the following:
- Minimum 75% of each board usable in its full width
- Widths Net 5 ½” – 8 ½” (140mm – 215mm) on a 40/40/20 width distribution
- Lengths: 4’-12’ (1220mm – 3660mm) Heavy to 7-8’ (2135mm – 2440mm)
- Knot size limitations 3” (76mm) – Open knots or holes allowed up to 1” (25mm) in diameter
- Minimum full width x 2’ (610mm) cutting size
