Quality Standards

Quality Assurance

Quality Assurance

Quality Standards

Solid Wood Flooring

Laminate Flooring

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Oak/Ash | Maple/Birch/Beech | Kempas/Merbau/Walnut | Bamboo

[G] look up term in glossary.

Bamboo
Defects		Grading
Defects		Grade A	Grade B	Grade C
Unplaned parts and plane marks	Surface and profile	Not allowed	Not allowed	Slight
Unplaned parts and plane marks	Back	Allowed	Allowed	Allowed
Tongue missing	Lengthwise	Not allowed	≤ 10% of length	≤ 20% of length
Tongue missing	Transverse	Not allowed	≤ 2 mm	≤ 2 mm
Rot [G]		Not allowed	Not allowed	Not allowed
Colour variation [G]		Not allowed	Slight	Allowed
Crack [G]		Not allowed	1 allowed, width ≤ 0.2 mm; length ≤ 10% of plank's length	1 allowed, width ≤ 0.2 mm; length ≤ 30% of plank's length
Wormholes [G]		Not allowed	Not allowed	Not allowed
Ripple		Not allowed	Not allowed	Not distinct
Wane [G]		Not allowed	Not allowed	Not allowed
Stain [G]		Not allowed	Not allowed	≤ 5% of plank's area (cumulative)
Fungus [G]		Not allowed	Not allowed	Slight
Blister [G]		Not allowed	3 allowed, diameter ≤ 0.5 mm	5 allowed, diameter ≤ 0.5 mm
Pin holes [G]		Not allowed	3 allowed, diameter ≤ 0.5 mm	5 allowed, diameter ≤ 0.5 mm
Wrinkling [G]		Not allowed	Not allowed	≤ 5% of plank's area
Exposed undercoat [G]		Not allowed	Not allowed	≤ 5% of plank's area
Nib [G]		Not allowed	Not allowed	Slight

TOLERANCE ON DIMENSIONS

Note: Length and width of planks refer to the respective measurements without including the length of the tongue on the length or width of the plank.

TOLERANCE ON SHAPE AND POSITION

Warp	Spring	If plank's length ≤ 500 mm, ≤ 0.02% of plank's length is allowed; If > 500 mm, ≤ 0.03% is allowed
	Cup	Convex warping: ≤ 0.2% of plank's width; concave warping: ≤ 0.15% of plank's width
	Bow	≤ 0.3% of plank's length
Gap		≤ 0.2 mm
Height difference between planks at joint		≤ 0.3 mm

OTHERS

Moisture content: 7% ≤ moisture content ≤ balance moisture level of locality
Varnish adherence force: above level 2