|
| |
SUMMARY
OF HARDWOOD FACE GRADE CHARACTERISTICS
FLAT CUT
Red
Oak and White Oak (See pictures)
| Cut |
Plain-Sliced
(Flat-Cut), Quarter Cut, Rift Cut
|
| Grade
Description |
AA
|
A
|
B
|
| Colour
and Matching |
Red Oak
|
White Oak
|
Red Oak
|
White Oak
|
Red Oak
|
White Oak
|
| Sapwood |
No
|
No
|
No
|
No
|
5%
|
Yes
|
| Heartwood |
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
| Colour
Streaks or Spots |
Yes
|
Yes
|
Yes
|
| Colour
Variation |
Slight
|
Slight
|
Yes
|
| Sharp
Colour Contrasts at Joints |
No
|
No
|
No
|
|
Type
of Matching
|
| Sequence
Matched
Book Matched
Slip Matched
Pleasing Matched
|
Yes
Yes
Specify
---
|
No
Yes
Specify
---
|
No
Yes
Specify
Yes
|
| Nominal
Minimum Width of Components in Face |
6"
|
5"
|
4" If book or
slip
|
|
Natural
Characteristics
|
| Small
Inconspicuous Burls & Pin
Knots - Combined Avg. No.
|
1 per 4 sq. ft.
8 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
|
| Burls
- Max Size |
1/4"
|
3/8"
|
1/2"
|
Knots
Max. Size
Dark Part
Total
|
1/4"
|
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.
|
| Mineral
Streaks |
No
|
Slight, Blending
|
Few to 8"
|
| Bark
Pockets |
No
|
No
|
Few to
1/8"x1"
|
| Worm
Tracks |
No
|
No
|
Slight
|
| Vine
Marks |
No
|
Slight
|
Yes
|
| Cross
Bars |
Slight
|
Slight
|
Yes
|
|
Manufacturing
Characteristics
|
| Rough
Cut |
No
|
No
|
Slight
|
| Blended
Repaired Tapering Hairline Splits |
Two
1/32"x3" on
panel ends only
|
Two
1/16"x6"
|
Four
1/8"x8"
|
| Repairs |
Very small
inconspic.
|
Small,
inconspicuous
|
Inconspicuous
|
|
Special
Characteristics
|
| Ray
Fleck |
No
|
Slight, Blending
|
Slight, Blending
|
| Rift
and Comb Grain |
Rift
permits 1" in 12" max. grain slope, 2 1/2" in
12" max. grain sweep, occasional flake not to exceed
3/8" in width.
Comb
permits 1/2" in 12" max. grain slope, 1/2" in
12" max. grain sweep, occasional flake not to exceed
3/32" in width.
|
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.
| |
|
