DESCRIPTION PRIME MARKANT/ (NATUR) RUSTIK
Wood’s cut (flat and quarter) Mixed Mixed Mixed
COLOUR
Main color of the tone Light Light Light
Presence of the dark tone of the oak No No Yes
Color difference on the board and between different parts of floor Without discoloration Without discoloration Discoloration is allowed
RAW MATERIAL’S STRUCTURE DEFECTS
Knot’s size not more than: < 5 mm. < 10 mm Without limits
Quantity of knots on 1 r/m: Not > than 2 pcs. Not > than 3 pcs. Without limits
  • Light healthy knots
No In measurements, written earlier In measurements, written earlier
  • Dark healthy knots
No In measurements, written earlier In measurements, written earlier
  • Healthy knots, partly adherent or with cracks, sanded and filled
In measurements, written earlier In measurements, written earlier In measurements, written earlier
  • Not adherent or pertly “destroyed” knots, filled and sanded
No No In measurements, written earlier
  • High-quality repaired, which imitates the knot (with color and structure)
No In measurements, written earlier In measurements, written earlier
  • Holes from “dead” knot, filled and sanded
No < 10 mm not more than 1 pcs. on 1 r/m (in quantity of knots, written earlier) 10 mm – joiner’s repair
  • Repaired knots, coming on the side edge (on which tongue is forming)
No No Yes
  • Light pinholes, < 5mm

1-3

1-3

1-3

  • Dark pinholes, < 5mm
1-3

1-3

1-3

  • Growth
No No “Opened”, without bark, length up to 100 mm, width up to 2 mm
  • Sapwood
No No No
Worm-hole No No No
CHEMICAL, FUNGOUS PAINTING
Light, dark spots or lines No No Yes
Yellowness No No No
Mottled butt rot No No No
WORKMANSHIP AND OTHER DEFECTS
Filled and sanded cracks, in width up to 1 mm, length – up to 100 mm No Yes Yes
Splits, scratches, filled and repaired No No Yes
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