| Feature | Permissible Feature |
| Tight knots | Not exceeding 45mm or 1/3 of the surface on which it occurs |
| Loose knots | Not permitted |
| Holes | Not exceeding - 3mm largest dimension - 20 in any 100x100 area - 30 in any 300x300 area
|
| Slope of grain | Not exceeding 1 in 8 |
| Tight gum veins | Quartersawn: surface width measured across feature, not exceeding 5mm
Backsawn:
|
| Loose gum veins | Not one surface to another
Not intersecting an end Surface width measured across the feature, not exceeding 3mm Agg. Length not exceeding 1/5 of the length of the piece
|
| Gum pockets, latex pockets and overgrowth injury | Not one surface to another
Surface width measured across the feature, not exceeding 10mm Length not exceeding 50mm Depth not exceeding 2mm when backsawn
|
| Knot checks | Width not exceeding 2mm |
| Checks other then internal | Width not exceeding 2mm
Individual length not exceeding 250mm |
| Stain - Natural Discolouration - Other discolouration inc. sticker marks |
Unlimited Not permitted |
| Black speck | Unlimited |