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

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Black Loose Knot

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Knot Hole

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Slough Knot Hole

Lumber Grading - Softwood - Knots - Knot Hole

A hole resulting from the loss of a knot.


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