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Re sawn lumber is achieved by re-processing smooth standard milled lumber to achieve a roughened surface, normally for aesthetics. The lumber is passed along a saw blade to achieve the desired effect. The finished size is smaller than nominal call-out dimension.

Rough sawn lumber is the board, plank or timber prior to milling for final sizing. Rough sawn lumber is larger in dimensions to the nominal call out. Rough sawn lumber is sometimes referred as rough milled lumber when certain exact sizes are desired.

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