Specifications include, but are not limited to: 1.05 DELIVERY, STORAGE, AND HANDLING A. General: Cover wood products to protect against moisture. Support stacked products to prevent deformation and to allow air circulation. 1. For lumber and plywood pressure treated with waterborne chemicals, place spacers between each bundle to provide air circulation. 2. Identify plywood sheathing as to grade, use, span rating and exposure classification by the mark of the APA The Engineered Wood Association. 3. Use extreme care when off-loading lumber to prevent damage, splitting and breaking of materials. Split or broken plywood sheathing will not be accepted for use in the work of this Section. B. Fire Retardant Treated Wood: Prevent exposure to precipitation during shipping, storage, or installation. PART 2 PRODUCTS 2.01 GENERAL REQUIREMENTS A. Dimension Lumber: Comply with PS 20 and requirements of specified grading agencies. 1. Species: Spruce-Pine-Fir (South), unless otherwise indicated. 2. Grading Agency: Any grading agency whose rules are approved by the Board of Review, American Lumber Standard Committee (www.alsc.org) and who provides grading service for the species and grade specified; provide lumber stamped with grade mark unless otherwise indicated. 3. Lumber of other species or grades is acceptable provided structural and appearance characteristics are equivalent to or better than products specified. 2.02 DIMENSION LUMBER A. Grading Agency: Southern Pine Inspection Bureau, Inc; SPIB (GR). B. Sizes: Nominal sizes as indicated on drawings, S4S. C. Moisture Content: 19 percent maximum. D. Stud Framing (2 by 2 through 2 by 6 ): 1. Species: Any allowed under referenced grading rules. 2. Grade: No. 2. E. Joist and Rafter Framing (2 by 6 through 4 by 16 ): 1. Species: Spruce-Pine-Fir (South). 2. Grade: No. 2. F. Miscellaneous Framing, Blocking, Nailers, Grounds, and Furring: 1. Lumber: S4S, No. 2 or Standard Grade. 2. Boards: No. 2 or Standard Grade.