| # | FAS | F1F | SEL | #1C | #2AC #2BC | #3AC | #3BC |
|---|---|---|---|---|---|---|---|
| Minimum Board Size |
6" x 8' | 6" x 8' | 4" x 6' | 3" x 4' | 3" x 4' | 3" x 4' | 3" x 4' |
| Minimum Cutting Size |
4" x 5' 3" x 7' |
Better Face to Grade FAS Poor Face to Grade #1 Common |
4" x 2' 3" x 3' |
3" x 2' | 3" x 2' | 3" x 2' | |
| Basic Yield | SM*10 83-1/3% |
SM*8 66-2/3% |
SM*6 50% |
SM*4 33-1/3% |
SM*3 25% |
||
| Formula to Determine Number of Cutting |
SM/4 (Max 4) |
(SM+1)/3 (Max 5) |
SM/2 (Max 7) |
Unlimited | Unlimited Sound Cuttings |
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| SM Need to Take Extra Cutting |
6-15' SM | 3-10' SM | 2-7' SM | ||||
| Extra Yield Need for Extra Cutting |
SM*11 91-2/3% |
SM*9 75% |
SM*8 66-2/3% |
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| Special Yields | 97% Rule - 2 cuts full widths any lengths; Pcs. 6" & wider with 6-12' SM SM x 11.64 for Yield |
97% Rule - On Better Face |
97% Rule - On Better Face; 2’ x 3’ SM to be 100% clear or SM x 11 in one cutting |
1’ SM - SM x 12 or 100% clear; 2’SM- SM x 9 |
1’ SM - SM x 8 #2A Com - Clear Cuttings #2B Com - Sound Cuttings |
#2A Com on Better Face and reverse side of cuttings sound; will also qualify for 3A Com |
|
| Max Pith | SM | L/2 | |||||
| Max Wane | L/2 | ||||||
| Max Split | 2*SM (Linear foot rule: MIN 12) |
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| Max Knot | SM/3 | ||||||