[G] look up term in glossary.
| Kempas/Merbau/Jatoba |
Location |
Defects |
Grade N |
Grade R |
Face Veneer |
Live knot [G] |
Not restricted |
Not restricted |
| Dead
knot [G] |
Not allowed |
3 allowed,
diameter ≤ 8 mm |
Veins
|
Not restricted |
Not restricted |
| Colour |
Natural colour |
Natural colour |
|
Colour Variation [G] |
Slight and natural |
Not restricted |
| Sapwood
[G] |
Not allowed |
Not restricted |
| False
Heart Wood [G] |
Not allowed |
Not restricted |
| Crack
[G] |
Not allowed |
Not allowed |
| Wormholes
[G] |
Not allowed |
Not allowed |
| Stain
[G] |
Not allowed |
Slight |
| Black spot |
Not allowed |
3 allowed,
diameter ≤ 20 mm |
Middle Layer |
Middle layer gap |
3 mm |
3 mm |
| Rot
[G] |
Slight, no fall off |
Slight, no fall off |
| Tongue missing |
≤ 20 mm (cumulative)
≤ 1% of plank's length |
≤ 30 mm (cumulative)
≤ 3% of plank's length |
| Destruction of ends |
Slight |
≤ 2 mm each end |
Back Veneer |
Bore hole |
Diameter ≤ 30 mm |
Diameter ≤ 30 mm |
| Dead
knot [G] |
No fall off |
Allowed |
| Wormholes
[G] |
Slight |
Mild |
| Inbark
[G] |
Slight |
Allowed |
| Cymbate and round mending |
≤ 10% of plank's area |
Allowed |
| Dry crack |
Slight |
Length ≤ 1000 mm;
width ≤ 10 mm |
| Lack of sanding |
Slight |
Allowed |
Varnish |
Putty mending mark
|
Not allowed |
Slight |
| Varnish stains |
Not allowed |
Slight |
| Light not even |
Not allowed |
Slight |
Varnish protruding over
the edge
|
Not allowed |
Slight |
| Scratches /Exposed
Undercoat [G] |
Not allowed |
Slight |
| Varnish not even |
Not allowed |
Slight |
Others |
Tongue deflection
|
Not allowed |
Not allowed |
| Roughness of the tongue
and groove |
Not allowed |
Slight |
| Wanting arris |
Not allowed |
Slight |
| Joining of tongue and
groove |
Good fit |
Good fit |
| Cup
warping concave [G] |
Chord ≤ 0.15% of plank's width |
| Cup
warping convex [G] |
Chord ≤ 0.20% of plank's width |
| Bow
warping concave [G] |
Irrespective of grading:
- Tongue and Groove with top veneer ≤ 1 mm: Chord ≤0.5% of plank's length
- Tongue and Groove with top veneer > 1 mm: Chord ≤0.2% of plank's length
- Glue-less system with top veneer > 1 mm: Chord ≤0.2% of plank's length
|
| Bow
warping convex [G] |
Irrespective of grading:
- Tongue and Groove with top veneer ≤ 1 mm: Chord ≤1.0% of plank's length
- Tongue and Groove with top veneer > 1 mm: Chord ≤0.8% of plank's length
- Glue-less system with top veneer > 1 mm: Chord ≤0.4% of plank's length
|
| Height difference |
0.15 mm |
0.2 mm |
| Roughness of ends |
Not allowed |
Slight |
| Tolerance on dimensions |
Length (+/-) 1 mm,Width (+/-) 0.1 mm,Thickness (+/-) 0.15 mm,Gap 0.2 mm |
