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Hotline: +84.936.020687 |
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Species |
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SUMMARY OF
HARDWOOD LUMBER GRADES
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FAS |
F1F |
Selected |
No.1 Common |
No.2 Common |
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Minimum Board size |
6" x 8' |
Same as FAS for species being graded |
4" x 6' |
3" x 4' |
3" x 4' |
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Minimum
cutting size |
4" x 5'
3" x 7' |
Best face of board must grade FAS
Poor face of board must grade No.1 Common |
4" x 2'
3" x 3 |
3" x 2' |
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Minimum yield |
Surface measure x 10
83 1⁄3 % |
Surface measure x 8
66 2⁄3 % |
Surface measure x 6
50% |
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Formula to determine number of clear
cuttings |
Surface measure
4 |
Surface measure+1
3 |
Surface measure
2 |
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