Perfekto wood has different grading rules for solid parquet and engineered boards.
1. Solid parquet grading rules:
- Select (no sapwood, no knots)
- Nature mix (no sapwood and 50 % quantity no knots, 50 % with knots till 10 mm)
- Rustic with knots till 10 mm, no sapwood
- Rustic with unlimited sapwood ( rare knots are possible)
Pictures of solid grading rules.
2. Engineered parquet grading rules below:
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