A. Boards or Strips: Lumber of less than 2 inches nominal size in least dimension. B. Dimension Lumber: Lumber of 2 inches nominal size or greater but less than 5 inches nominal size in least dimension. C. Exposed Framing: Framing not concealed by other construction. D. Timber: Lumber of 5 inches nominal size or greater in least dimension. 1.04 DELIVERY, STORAGE, AND HANDLING A. Stack wood products flat with spacers beneath and between each bundle to provide air circulation. Protect wood products from weather by covering with waterproof sheeting, securely anchored. Provide for air circulation around stacks and under coverings. PART 2 PRODUCTS 2.01 WOOD PRODUCTS, GENERAL A. Lumber: DOC PS 20 and applicable rules of grading agencies indicated. If no grading agency is indicated, comply with the applicable rules of any rules-writing agency certified by the ALSC Board of Review. Grade lumber by an agency certified by the ALSC Board of Review to inspect and grade lumber under the rules indicated. B. Construction Panel Standards: Comply with DOC PS 1 " U.S. Product Standard for Construction and Industrial Plywood" for plywood construction panels. Furnish construction panels that are each factory-marked with APA trademark evidencing compliance with grade requirements. C. Maximum Moisture Content of Lumber: 19 percent D. For blocking and nailers used for attachment of other construction, select and cut lumber to eliminate knots and other defects that will interfere with aachment of other work. 2.02 FIRE-RETARDANT-TREATED MATERIALS A. General: Provide fire-retardant-treated wood for all interior wood blocking, furring, framing and elsewhere that fire retardant treatment is indicated on Contract Drawings. Comply with applicable requirements of AWPA C20 (lumber) and AWPA C27 (plywood). Identify fire-retardant-treated wood with appropriate classification marking of UL; U,S, Testing; Timber Products Inspection, Inc.; or another testing and inspecting agency acceptable to authorities having jurisdiction. B. Acceptable Products: 1. Fire-Retardant-Treated Materials, Interior: a. "D-Blaze" as manufactured by Chemical Specialties, Inc., b. "Dricon FRT" as manufactured by Arch Wood Protection, Inc., c. "Pyro-Guard" as manufactured by Hoover Treated Wood Products, Inc., C. Interior: For interior locations, use chemical formulaon that produces treated lumber and plywood with the following properties under conditions present aFter installation: 1. Bending strength, stiffness, and fastener-holding capacities are not reduced below values published by manufacturer of chemical formulation under elevated temperature and humidity conditions simulating installed conditions when tested by a qualified independent testing agency. 2. No form of degradaon occurs due to acid hydrolysis or other causes related to treatment. 3. Contact with treated wood does not promote corrosion of metal fasteners. D. Inspect each piece of treated lumber or plywood aFter drying and discard damaged or defecticve pieces
