Oak flooring grading description

Select

• Healthy knots, up to approx. 9 mm.
• Soft color variation of wood and rare occurred white spots.

1-BIS

• Healthy knots, up to 25-35 mm.
• Fallen out knots, up to 25 mm.
• Light timber color variation, white spots, sapwood.

Rustic AB

• Healthy knots, up to 65 mm.
• Fallen out knots, up to 40-50 mm.
• Quantity of knots is not limited.
• Timber color variation, white spots, sapwood.