Unedged board-Half-edged board
Length: 200-600 cm.
Quality: A, AB,B,C,CD
- A (two faces clean, wood-coloured knot allowed up to 10 mm)
- AB (one face clean, wood-coloured knot and healthy knot allowed up to 20 mm on the face of lower quality)
- B (jone face clean where sapwood and healthy knot allowed up to 20 mm)
- C (healthy knots without restrictions, black knots on the face of poorer quality, sapwood allowed)
- CD (knots, heart and sapwood without restrictions).