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SUMMARY
OF HARDWOOD FACE GRADE CHARACTERISTICS
ROTARY CUT
Red
Oak and White Oak (See pictures)
| Cut |
Rotary-Cut
|
| Grade
Description |
AA
|
A
|
B
|
C
|
| Colour and Matching |
Red Oak
|
White Oak
|
Red Oak
|
White Oak
|
Red Oak
|
White Oak
|
Red Oak
|
White Oak
|
| Sapwood |
No
|
No
|
5%a
|
Yesa
|
20%
|
Yes
|
Yes
|
Yes
|
| Heartwood |
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
| Colour Streaks
or Spots |
Yes
|
Yes
|
Yes
|
Yes
|
| Colour
Variation |
Slight
|
Slight
|
Yes
|
Yes
|
| Sharp Colour
Contrasts at Joints |
No
|
No
|
No
|
No
|
|
Type
of Matching
|
| Sequence
Matched
Book Matched
Slip Matched
Pleasing Matched
|
No
Yes
Specify
---
|
No
Specify
Specify
Specify
|
No
No
Specify
---
|
No
No
No
---
|
Nominal
Minimum Width of Components
in Face |
6"
|
5"
|
4" If book or
slip
|
No limit
|
| Natural
Characteristics |
|
|
|
|
| Small
Inconspicuous Burls & Pin
Knots - Combined Avg. No.
|
1 per 4 sq. ft.
6 per 4'x8' panel
|
1 per 2 2/3 sq.
ft.
8 per 4'x8' panel
|
1 per 1 1/3 sq.
ft.
24 per 4'x8' panel
|
No limit
|
| Burls - Max
Size |
1/8"
|
1/4"
|
3/8"
|
No limit
|
| Knots Max.
Size
Dark Part
Total
|
|
1/8"
1/4"
|
1/8"
1/4"
|
|
| Scattered
Sound and Repaired
Knots - Combined Avg. No.
Max. Size - Sound
Max. Size - Repaired
Avg. No. - Repaired
|
No
|
No
|
1 per 8 sq ft.
4 per 4'x8' panel
3/8"
1/8"
1 per 8 sq. ft.
|
1 per 4 sq. ft.
8 per 4'x8' panel
3/8"
3/8"
1 per 8 sq. ft.
|
| Mineral
Streaks |
No
|
Slight, Blending
|
Few to 8"
|
Yes
|
| Bark Pockets |
No
|
No
|
Few to
1/8"x1"
|
Few to
1/4"x2"
|
| Worm Tracks |
No
|
No
|
Slight
|
Few
|
| Vine Marks |
No
|
Slight
|
Yes
|
Yes
|
| Cross Bars |
Slight
|
Slight
|
Yes
|
Yes
|
| Manufacturing
Characteristics |
| Rough Cut |
No
|
No
|
Slight
|
Slight
|
| Blended
Repaired Tapering
Hairline Splits
|
Two
1/32"x3"
on panel ends only
|
Two
1/16"x6"
|
Four
1/8"x8"
|
Four
3/16"x8"
|
| Repairs |
Very small,
inconspic.
|
Small,
inconspicuous
|
Inconspicuous
|
Yes
|
|
Special
Characteristics
|
| Ray Fleck |
No
|
Slight, Blending
|
Slight, Blending
|
Yes
|
DEFINITIONS
Unfilled worm holes, open
splits, open joints, open bark pockets, shake or doze not permitted in
above grades. One inch = 25.4 mm; one sq. ft. = 0.0929 square meters.
Note:
a Sap allowed unless otherwise specified.
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