Grade Description |
BB Face |
CC Face |
Natural Characteristics |
Burls, Sound |
Yes, smooth |
Yes, smooth |
Pin Knots |
Sound, not clustered |
Sound |
Sound, Live Knots |
19mm max. diameter, 4 per panel, not clustered |
25.4mm max. diameter, 6 per panel, not clustered |
Knotholes |
9,5mm max. diameter, filled, blending |
12.7mm max. diameter, filled, blending |
Color Variation |
Yes |
Yes |
Mineral Streaks |
No |
Blending |
Dry Pitch and Bark Pockets |
Filled, blending |
Filled, blending |
Wormholes and Worm Tracks |
0.8mm max. diameter, 5 per panel, filled, blending |
1.6mm max. diameter, 32 per panel, filled linear hole 15.9mm max. filled |
Vine Marks |
Blending, smooth, level |
Blending, smooth, level |
Cross Breaks |
No |
Hairline, 50.8mm max. length |
Doze |
No |
Firm, slight, filled, blending |
Manufacturing Characteristics |
Joint |
2 max. tight, parallel to edge, grain and color blending at joint |
Yes. Tight, parallel to edge, color blending at joint |
Splits - Open |
No |
Hairline, 152mm max. on panel ends only |
Splits - Filled |
Two 1.6mm x 254mm or 3.2mm x 203mm at each end, blending |
Three 1.6mm x 610mm or 3.2mm x 356mm at each end, blending |
Fill or putty Smearers |
Blending |
Rough Cut / Ruptured Grain |
No |
Occasional, filled and smooth |
Shims |
6.4mm x 154mm at end of panel. Repaired with veneer, color and grain blending |
19mm x 152mm at end of panel. Repaired with veneer, color and grain blending |
Vine Mark |
No |
No |
Tape/Glue Residue |
No |
No |
Sanding |
Smooth, only blending or inconspicuous streaks or chatter marks permitted |
Smooth, only blending or inconspicuous streaks or chatter marks permitted |
Other Characteristics Not Permitted
Boat or large symmetrical patches, open bark pockets, bark, wet pitch, grease/oil or colored chalk or mechanical defects not allowed on face grades.
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Copyright © 2009 Xuzhou Tianshan Wood Co Ltd. All rights reserved.
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