Minimum National Grade Rules
FAS
Hardwood's best grade yields about 85-90% clear cuttings. Most boards are 6" and wider, 8' and longer. (Exception: Walnut is 5" and wider, 6' and longer.)
Rough FAS lumber is graded from the board's poorer side
FAS 1 FACE & BETTER
Subject to the same grading rule as FAS except that the board is graded from the better side and back side must grade at least No. 1 Common.
SELECTS & BETTER
Similar to FAS 1 Face & Better except that the minimum allowable board size is 4" and wider, 6' and longer. Backside may grade No. 1 Common or Sound.
SELECTS
4" and wider, 6' and longer. Better side grades FAS, reverse side grades No. 1 Common. Short and narrow boards are usually clear.
CLEAR 1 FACE SHORTS
4" and wider, 4'-7' long. For short clear cuttings - such as face frames and furniture parts.
NO. 1 COMMON "THRIFT GRADE"
3" and wider, 4' and longer. Yields over two-thirds clear cuttings. This economical grade contains less sap than the clearer grades. Stock is generally long with average widths. Walnut is an exception.
PRIME IMPORT QUALITY
Those woods which cannot be
graded by NHLA rules carry the description Prime Import Quality. This term
tells you that the wood is the best available in the world market.
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Western Pine
Grade Rules
Select Grades
C & BETTER
SELECT
A combination of the two highest recognized grades, allowing only minor imperfections.
D SELECT
Good practical grade, admitting only sound defects which cover smoothly with paint.
MOULDING STOCK
A special grade offered by a few mills, yielding more
than 66 2/3% rippings 1" and wider, 10' and longer. Suitable for
mouldings.
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STANDARD SURFACED THICKNESS
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| LUMBER |
|
HARDWOODS |
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| Rough
Thickness | | Most
Softwoods |
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| 4/4 |
S2S to |
25/32" |
|
| 5/4 |
S2S to |
1
1/16" |
|
| 6/4 |
S2S to |
1
5/16" |
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| 8/4 |
S2S to |
1/3/4" |
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