Grades
Premium Grade: Clear Heartwood, 100% Edge Grain
Number 1 Grade: Clear Heartwood, Maximum 20% Flat Grain
Lengths
24 inch (610 mm)
18 inch (455 mm)
Thickness
1/2 inch (13 mm) Medium
3/4 inch (19 mm) Heavy
Minimums or Thicker
WIDTH
Random
4 inch (100 mm) minimum
14 inch (350 mm) maximum
Roof Pitch
4:12 minimum (Lower slopes require special application)
