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for the subject:

Lumber

Scholars who research "Lumber" look at a type of wood that has been processed into beams and planks,.

Engineered lumber, Grades and standards, softwoods are a few categories of "Lumber".

Some motivations are make their own woodwork.

Smith, L. W. and L. W. Wood, Ridley-Ellis, Dan are some authorities of "Lumber".

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