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| Grade & Quality Marks for Pressure-Treated Lumber |
To be certain the lumber for your building projects is of a quality to
meet its intended use, insist that it be grademarked by an agency accredited
by the American Lumber Standard Committee (ALSC).
An ALSC-accredited grade mark on Southern Pine dimension lumber (2" or
less in thickness) indicates that the lumber has been properly seasoned
prior to treatment and that it meets the structural and appearance requirements
established for the grade.
In addition, all treated Southern Pine should conform to the approved
standards of the American Wood-Preservers' Association (AWPA). Each piece
should be treated in accordance with AWPA Standards and identified with
a quality mark (either ink stamp or plastic end tag) by an ALSC-accredited
inspection agency.
| NOTE: The presence of a plastic end-tag does
not necessarily indicate ALSC-accredited treated lumber. The quality
mark information should be printed separate from the manufacturer's
warranty and guarantee information on the tag. |
For the lumber grade mark to be valid after
treatment, the lumber must adhere to the grade requirements and the moisture
content of the grade represented by the grade mark.
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