Grades
Number 1 Grade: Clear Heartwood, 100% Edge Grain, No defects
Number 2 Grade: Clear face from butt end, 11" on 18 inch shingles and 16" on 24 inch shingles, Limited sapwood and flat grain, Limited knots and defects above clear portion
Number 3 Grade: Clear face from butt end, 6" on 18 inch shingles and 10" on 24 inch shingles, Unlimited sapwood and flat grain, Limited knots and defects above clear portion allowed, Tight knots and defects allowed in upper half
Lengths
24 inch Royals
18 inch Perfections
16 inch 5X
Thickness
0.5 inch Royals
0.45 inch Perfections
0.4 inch 5X
WIDTH
Random
4 inch minimum (3 inch on Number 3 Grades)
14 inch maximum
Roof Pitch
3:12 minimum
