Solid Wood Flooring : OAK | ||||
Items | Face | Back | ||
grae A | grade B | grade CD | ||
Sound Knots | Ф<3㎜ Length≤500㎜≤2pcs | Ф≤8mm Length≤500≤2pcs | Ф≤20㎜ Unlimited | Unlimited |
Dead Knots | Not allowed | Ф≤4㎜ Length≤500≤1pcs | Ф≤10㎜≤5pcs | Ф≤20㎜ Unlimited |
Worm Hole | Not allowed | Not allowed | Ф≤2㎜≤5pcs Must Puffy | Ф≤15㎜ Unlimited |
Black Line | Not allowed | Unlimited | Unlimited | Unlimited |
SAP wood | MAPLE Not allowed,BRICH Allowed | <10﹪ of Area MAPLE,BRICH Allowed | MAPLE Unlimited,BRICH Allowed | MAPLE Unlimited,BRICH Allowed |
Rot | Not allowed | Not allowed | Not allowed | Dot<20﹪ of Area |
Damage | Not allowed | Not allowed | Not allowed | Length≤ 30﹪ of length Width≤20﹪ of Width |
Crack | Not allowed | Not allowed | 0.1×15㎜≤2pcs | Width 0.5㎜ Length 50㎜ Unlimited |
Wave Mark | Not allowed | Not allowed | Slightly | Unlimited |
Press Mark | Not allowed | Not allowed | Slightly | Unlimited |
Scratch | Not allowed | Very Slight | Slightly | Unlimited |
Bubble | Not allowed | Not allowed | Not allowed | Unlimited |
Lacquer Uneven | Not allowed | Not allowed | Not allowed | Unlimited |
Pin | Not allowed | Ф≤0。5≤3pcs | Ф≤0。5≤3pcs | Unlimited |
Orange Peal | Not allowed | Not allowed | ≤5﹪ of Area | Unlimited |
Rough | ≤5pcs | ≤8pcs | ≤8pcs | Unlimited |
Milling Tolerance
Bending | Short | Length≤500㎜, allowed≤0.02﹪ of length, Length≥500㎜,allowed≤0.03﹪ of length |
Cupping | Bending≤0.2﹪ of width, Cupping≤0.15% of width | |
Banana | ≤0.3% of length | |
Gap | ≤0.1㎜ | |
High-Low Difference | ≤0.2㎜ |
Others: MC: 7%≤MC≤EMC; Varnish adherence: A grade 0-1; B grade 2; Varnish Hardness is up to customer’s request.
Oak 3-layer 3-strip Engineered flooring quality standard | ||||
Location | Defects | Grade A | Grade B | Grade CD |
Face Veneer | Live knot | Diameter ≤ 2mm; sparse | Diameter ≤ 5mm; sparse | Diameter ≤ 15mm; sparse |
Dead knot | Not allowed | 3 allowed, diameter ≤ 3mm | 3 allowed, diameter ≤ 10mm | |
Sapwood | Not allowed | Not distinct, natural and harmonic | ≤ 25% of plank’s area; ≤ 4-6 pieces (mending) | |
Colour Variation | Natural and harmonic | Slight | Low contrast | |
Rot | Not allowed | Slight | Slight | |
Inbark | Not allowed | Not allowed | Light and natural, 2 allowed, diameter ≤ 20mm | |
Pith | Not allowed | Not allowed | Not allowed | |
Retrorse veins | Not allowed | Slight | Allowed | |
Crack | Not allowed | Not allowed | Slight, 1 allowed, diameter ≤ 3mm (mending) | |
Veins | FQ mixed | FQ mixed | FQ mixed | |
Black/Blue spot | Not allowed | Not allowed | Slight | |
Brown line | Not allowed | Not allowed | Allowed | |
Dimension shortness | Not allowed | Not allowed | Not allowed | |
Glue stains | Not allowed | Not allowed | Slight | |
Wormholes | Not allowed | Not allowed | 2 allowed, diameter ≤ 2mm (mending) | |
Indentation | Not allowed | Not allowed | Slight | |
Strong wooden lump | Not allowed | Slight | Slight | |
Discolouration | Not allowed | Not allowed | Slight, natural | |
Resin pocket | Not allowed | Not allowed | Length < 1mm | |
Wane | Not allowed | Not allowed | Slight | |
Wood abnormality | Not allowed | Not allowed | Slight | |
Face veneer gap | Transverse | 0.1mm | 0.2mm | 0.2mm |
Lengthwise | 0.1mm, length > 10mm | 0.2mm, length > 200mm | 0.2mm, length > 300mm | |
Middle Layer | Middle layer gap | 3mm | 3mm | 3mm |
Rot | Slight, no fall off | Slight, no fall off | Slight, no fall off | |
Tongue missing | ≤ 20mm (cumulative) ≤ 1% of plank’s length | ≤ 20mm (cumulative) ≤ 1% of plank’s length | ≤ 30mm (cumulative) ≤ 3% of plank’s length | |
Destruction of ends | Not allowed | Slight | ≤ 2mm each end | |
Back Veneer | Bore hole | Diameter ≤ 30mm | Diameter ≤ 30mm | Diameter ≤ 30mm |
Dead knot | No fall off | No fall off | Allowed | |
Wormholes | Few | Slight | Mild | |
Inbark | Slight | Slight | Allowed | |
Cymbate and round mending | ≤ 5% of plank’s area | ≤ 10% of plank’s area | Allowed | |
Dry crack | Slight | Slight | Length ≤ 1000mm; width ≤ 10mm | |
Lack of sanding | Slight | Slight | Allowed | |
Varnish | Putty mending mark | Not allowed | Not allowed | Slight |
Varnish stains | Not allowed | Not allowed | Slight | |
Light not even | Not allowed | Not allowed | Slight | |
Varnish protruding over the edge | Not allowed | Not allowed | Slight | |
Scratches /Exposed undercoat | Not allowed | Not allowed | Slight | |
Varnish not even | Not allowed | Not allowed | Slight | |
Others | Tongue deflection | Not allowed | Not allowed | Not allowed |
Roughness of the tongue and groove | Not allowed | Not allowed | Slight | |
Wanting arris | Not allowed | Not allowed | Slight | |
Joining of tongue and groove | Good fit | Good fit | Good fit | |
Cup warping concave | Not allowed | Chord ≤ 0.15% of plank’s width | Chord ≤ 0.15% of plank’s width | |
Cup warping convex | Chord ≤ 0.20% of plank’s width | Chord ≤ 0.20% of plank’s width | Chord ≤ 0.20% of plank’s width | |
Bow warping concave | Chord ≤ 0.10% of plank’s length | Chord ≤ 0.10% of plank’s length | Chord ≤ 0.20% of plank’s length | |
Bow warping convex | Chord ≤ 0.50% of plank’s length | Chord ≤ 1% of plank’s length | Chord ≤ 1% of plank’s length | |
Height difference | 0.1mm | 0.1mm | 0.1mm | |
Roughness of ends | Not allowed | Not allowed | Slight | |
Tolerance on Dimensions | Length (+/-) 1mm,Width (+/-) 0.1mm,Thickness (+/-) 0.1mm,Gap 0.1mm |
Oak 1-strip quality Standard | |||||
Location | Defects | GradeA | Grade B | Grade C | Grade D |
Face Veneer | Live knot | Diameter ≤ 2mm ; sparse | Diameter ≤ 5mm ; sparse | 3 allowed, diameter ≤ 10mm | Not restricted |
Dead knot | Not allowed | 2 allowed, diameter ≤ 2mm | 2 allowed, diameter ≤ 5mm , sparse | 3 allowed, diameter ≤ 15mm , sparse | |
Sapwood | Not allowed | Not distinct, natural and harmonic | ≤ 5% of plank’s width (mending) | ≤ 30% of plank’s width (mending) | |
Colour variation | Not allowed | Not allowed | Slight and natural | Natural and harmonic, low contrast | |
Rot | Not allowed | Not allowed | Not allowed | Not allowed | |
Inbark | Not allowed | Not allowed | Not allowed | 2 allowed, length ≤ 15mm ; width ≤ 4mm (mending) | |
Pith | Not allowed | Not allowed | Not allowed | Not allowed | |
Crack | Not allowed | Not allowed | Not allowed | Not allowed | |
Brown line | Not allowed | Not allowed | 2 allowed, sparse length ≤ 15mm ; width ≤ 3mm | 4 allowed, length ≤ 30mm ; width ≤ 5mm | |
Stains | Not allowed | Not allowed | Not allowed | Not allowed | |
Wormholes | Not allowed | Not allowed | Not allowed | 5 allowed, sparse diameter ≤ 2mm (mending) | |
Plinth mark | Not allowed | Not allowed | Not allowed | Not allowed | |
Discolouration | Not allowed | Not allowed | Not allowed | Slight and natural | |
Wane | Not allowed | Not allowed | Not allowed | Not allowed | |
Middle Layer | Middle Layer Gap | 3mm | 3mm | 3mm | 3mm |
Rot | Slight, no fall off | Slight, no fall off | Slight, no fall off | Slight, no fall off | |
Tongue missing | ≤ 20mm (cumulative) ≤ 1% of plank’s length | ≤ 20mm (cumulative) ≤ 1% of plank’s length | ≤ 20mm (cumulative) ≤ 2% of plank’s length | ≤ 30mm (cumulative) ≤ 3% of plank’s length | |
Destruction of ends | Not allowed | Not allowed | Slight | ≤ 2mm each end | |
Back Veneer | Bore hole | Diameter ≤ 30mm | Diameter ≤ 30mm | Diameter ≤ 30mm | Diameter ≤ 30mm |
Dead knot | No fall off | No fall off | No fall off | Allowed | |
Wormholes | Few | Few | Slight | Mild | |
Inbark | Slight | Slight | Slight | Allowed | |
Cymbate and round mending | ≤ 5% of plank’s area | ≤ 5% of plank’s area | ≤ 10% of plank’s area | Allowed | |
Dry crack | Slight | Slight | Slight | Length ≤ 1000mm ; width ≤ 10mm | |
Lack of sanding | Slight | Slight | Slight | Allowed | |
Varnish | Putty mending mark | Not allowed | Not allowed | Not allowed | Slight |
Varnish stains | Not allowed | Not allowed | Not allowed | Slight | |
Light not even | Not allowed | Not allowed | Not allowed | Slight | |
Varnish protruding over the edge | Not allowed | Not allowed | Not allowed | Slight | |
Scratches /Exposed undercoat | Not allowed | Not allowed | Not allowed | Slight | |
Varnish not even | Not allowed | Not allowed | Not allowed | Slight | |
Others | Tongue deflection | Not allowed | Not allowed | Not allowed | Not allowed |
Roughness of the tongue and groove | Not allowed | Not allowed | Not allowed | Slight | |
Wanting arris | Not allowed | Not allowed | Not allowed | Slight | |
Joining of tongue and groove | Good fit | Good fit | Good fit | Good fit | |
Cup warping concave | Not allowed | Not allowed | Chord ≤ 0.15% of plank’s width | Chord ≤ 0.15% of plank’s width | |
Cup warping convex | Chord ≤ 0.20% of plank’s width | Chord ≤ 0.20% of plank’s width | Chord ≤ 0.20% of plank’s width | Chord ≤ 0.20% of plank’s width | |
Bow warping concave | Chord ≤ 0.10% of plank’s length | Chord ≤ 0.10% of plank’s length | Chord ≤ 0.10% of plank’s length | Chord ≤ 0.20% of plank’s length | |
Bow warping convex | Chord ≤ 0.50% of plank’s length | Chord ≤ 0.50% of plank’s length | Chord ≤ 1% of plank’s length | Chord ≤ 1% of plank’s length | |
Height difference | 0.05mm | 0.05mm | 0.05mm | 0.05mm | |
Roughness of ends | Not allowed | Not allowed | Not allowed | Slight | |
Tolerance on dimensions | Length (+/-) 1mm ,Width (+/-) 0.1mm ,Thickness (+/-) 0.1mm ,Gap 0.1mm |
ORDERING DETAILS
MINIMUM ORDER: 200SQ.M
DELIVERY TIME: ABOUT 25 DAYS
SAMPLE AVAILABLE: SMALL PIECES OF SAMPLES FREE OF CHARGE; FULL LENGTH SAMPLES SHOULD BE PAID BEFORE EXPRESSING.
QUALITY CONTROLLING
PROTECTING PRODUCTS-RANDOMLY SELECTS CARTONS TO BE INSPECTED PLANK STABILITY-VERIFY MOISTURE CONTENT SCRATH RESISTANT-TEST VARNISH HARDNESS RESISTANCE AGAINST FLAKING-TEST VARNISH ADHERENCE FITTEST SPECIFICATION-VERIFY VARNISH BRIGHTNESS AND PRECISION MEASURES TO EACH PLANK AND ITS COMPONENT PARTS.