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

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Spike Knot

Intergrown Knot

Intergrown Knot

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Black Tight Knot

Black Loose Knot

Black Loose Knot

Encased Knot

Unsound Knot

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Knot Hole

Slough Knot Hole

Slough Knot Hole

Lumber Grading - Softwood - Knots - Slough Knot Hole

A slough knot hole running from the wide face to the edge.


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