Lumber Grading, Lumber Characteristics, Softwood Manufacturing Defects - Online Expos

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Handling Marks

Torn Grain

Raised Grain

Machine Burn

Machine Offset

Gouge

Gouge

Canter Head Channel

Canter Head Channel

Saw Step

Lumber Grading - Softwood - Manufacturing Defects - Canter Head Channel

Channel cut out of the edge (s) along the length of the piece. It is caused by mis-aligned chipper knives.


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