| |
Knots |
Shakes |
Heart traces |
Wane |
Rot or dote |
Grade 1
A piece is classified as grade 1 when both sides are grade 1 or when one side is grade 1 and the opposite side is grade 2 |
Sound knots are excluded except if smaller than 8 mm |
Edge shakes not exceeding 30 mm are permitted on each extremity |
Excluded |
Excluded |
They are excluded, as well as damages due to insects |
Grade 2
A piece is classified as grade 2 when both sides are grade 2 or when one side is grade 2 and the opposite side is grade 3 |
Small or medium sized, in limited number.
Rotten or non-intergrown knots are excluded. |
Edge shakes not exceeding 30 mm are permitted on each extremity |
Admitted if straight |
Admitted on 25% of the length but limited in width and thickness |
They are excluded, as well as damages due to insects |
Grade 3
A piece is classified as grade 3 when both sides are grade 3 or when one side is grade 3 and the opposite side is grade 4 |
Medium sized in limited number.
Rotten or non-intergrown knots are excluded. |
Edge shakes not exceeding 30 mm are permitted on each extremity |
Admitted |
Admitted on 25% of the length but limited in width and thickness |
Traces of rot are permitted.
Pin holes and other insect damages are excluded. |
Grade 4
A piece is classified as grade 4 when both sides are grade 4 |
Knots size must be limited to 1/3 of the width of the piece.
Rotten or non-intergrown knots are excluded. |
Edge shakes not exceeding 50 mm are permitted on each extremity |
Admitted without limitation |
Admitted on 25% of the length but limited in width and thickness |
Rot permitted.
Pin holes and damages due to insects are excluded, except for non-active galeries. |
