|
| |
SUMMARY
OF HARDWOOD FACE GRADE CHARACTERISTICS
African
and Honduras Mahogany, Lauan, Meranti
| Cut |
Rotary-Cut,
Quarter Cut, Plain-Sliced (Flat-Cut)
|
| Grade
Description |
AAa
|
Aa
|
B
|
|
Color
and Matching
|
| Sapwood |
No
|
No
|
No
|
| Heartwood |
Yes
|
Yes
|
Yes
|
| Colour
Streaks or Spots |
Slight
|
Slight
|
Occasional
|
| Colour
Variation |
Slight
|
Slight
|
Moderate
|
| Sharp
Colour Contrasts at Joints |
No
|
No
|
No
|
| Type
of Matching |
| Sequence
Matched
Book Matched
Slip Matched
Pleasing Matched
|
Yes
Yes
Specify
---
|
---
Yes
Specify
---
|
---
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 5 sq. ft.
6 per 4'x8' panel
|
1 per 3 sq. ft.
10 per 4'x8' panel
|
1 per 2 sq. ft.
16 per 4'x8' panel
|
| Burls
- Max. Size |
1/8"
|
1/4"
|
3/8"
|
| Knots
Max. Size:
Dark Part
Total
|
1/4"
|
1/8"
1/4"
|
1/8"
|
| 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
|
Occasional
|
| Bark
Pockets |
No
|
No
|
Few to
1/8"x1"
|
| Worm
Tracksa |
No
|
No
|
Slight
|
| Vine
Marks |
Slight
|
Slight
|
Yes
|
| Cross
Bars |
Occasional
|
Occasional
|
Yes
|
|
Manufacturing
Characteristics
|
| Rough
Cut |
No
|
No
|
Slight
|
| Blended
Repaired Tapering Hairline Splits |
Two
1/32"x3" on panel ends only
|
Two
1/32"x6"
|
Two
1/16"x8"
|
| Repairs |
Very small
inconspicuous
|
Small
inconspicuous
|
Inconspicuous
|
| Special
Characteristics |
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 In Lauan and
Meranti, Grade AA will permit slight worm tracks and Grade A will permit
occasional worm tracks.
| |
|
