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Round 1 Bowling and Amusement 12/09/2024 Paradigm Design <br />Main Place Mall Expansion Grand Rapids, MI <br />Santa Ana, California <br />Project #2309147GR <br />INTERIOR FINISH CARPENTRY 06 2023 - 3 <br />PART 2 - PRODUCTS <br />2.1 MATERIALS, GENERAL <br />A.Lumber: DOC PS 20 and applicable rules of grading agencies indicated. If no grading agency is <br />indicated, comply with the applicable rules of any rules-writing agency certified by the American <br />Lumber Standard Committee's Board of Review. Grade lumber by an agency certified by the <br />American Lumber Standard Committee's Board of Review to inspect and grade lumber under the rules <br />indicated. <br />1.For exposed lumber, mark grade stamp on end or back of each piece, or omit grade stamp <br />and provide certificates of grade compliance issued by grading agency <br />B.Softwood Plywood: DOC PS 1. <br />C.Hardboard: ANSI A135.4. <br />D.MDF: ANSI A208.2, Grade 130. Comply with formaldehyde emission requirements of each voluntary <br />standard NPA 9. <br />E.Particleboard: ANSI A208.1, Grade M-2-Exterior Glue. Comply with formaldehyde emission <br />requirements of each voluntary standard NPA 8. <br />2.2 WOOD-PRESERVATIVE-TREATED MATERIALS <br />A.Preservative Treatment by Pressure Process: AWPA U1; Use Category UC1. <br />1.Kiln dry lumber and plywood after treatment to a maximum moisture content of 19 and 18 <br />percent, respectively. <br />2.Preservative Chemicals: Acceptable to authorities having jurisdiction and containing no arsenic <br />or chromium. <br />3.For exposed items indicated to receive transparent finish, do not use chemical formulations that <br />contain colorants or that bleed through or otherwise adversely affect finishes. <br />4.Do not use material that is warped or does not comply with requirements for untreated <br />material. <br />5.Mark lumber with treatment-quality mark of an inspection agency approved by the American <br />Lumber Standard Committee's Board of Review. <br />a.For exposed lumber indicated to receive a stained or natural finish, mark end or back of <br />each piece or omit marking and provide certificates of treatment compliance issued by <br />inspection agency. <br />6.Mark plywood with appropriate classification marking of an inspection agency acceptable to <br />authorities having jurisdiction.