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DIMENSION LUMBER Design assumes lumber is free of significant splits and checks, and contractor will visually inspect during installation. Sills and all other lumber in contact with concrete or masonry and within 8" of finished grade shall be preservative treated wood. Preservative treated wood shall be in accordance with the American Wood Protection Association, Standard U1. All lumber is to be grade stamped, which is to contain grading agency, mill number or name, grade of lumber, species or species grouping or combination designation, rules under which graded, where applicable, and condition of seasoning at time of manufacture. All lumber shall be seasoned to a moisture content of 19% or less, with the indication of "S-Dry" on the grade stamp. All lumber shall be protected from the elements. Sill plates to be bolted to foundation wall with 5/8" diameter anchor bolts at 4'-0" o.c. maximum. Bolts to extend 13"minimum into solidly grouted foundation wall. Each siii plate to have a minimum of 2 bolts with one bolt located not more than 12 inches or less than 4 1/2 inches from each end of the p►ate section. Use 1/8"x 2"washers, slightly crushing plate. Minimum nailing shall be in accordance with Table R602.3(1) of the 2006 1RC unless noted otherwise. All walls shall have a single bottom plate and double top plate. Exterior walls (load bearing and non load bearing) shail be: 2 x 6 studs at 16" o.c. [or] 2 x 4 studs at 12"o.c. [or] 3 x 4 studs at 16"o.c. Exterior walis above the upper level shali be 2 x 4 studs at 16"o.c. unless noted otherwise. Interior bearing walls shall be 2 x 4 studs at 16"o.c. unless noted otherwise. Interior non-load-bearing walls shall be 2 x 4 studs at 16"o.c. unless noted otherwise Typical interior openings to have a minimum of 2 bearing (trimmer or jack) studs and 1 full-height king stud. Typical exterior openings to have a minimum of 2 bearing (trimmer or jack) studs and king studs as follows: Exterior openings up to 2'wide shall have 1 x king stud. Exterior openings up to 4'wide shall have 2x king studs. Exterior openings up to 8' wide shall have 3x king studs. Exterior openings over 8'wide shall have 4x king studs. Headers not noted to be 2—2 x 6 up to 4'-0"span and 2—2 x 8 from 4'-0"to 6'-0"span. Wood headers shall have a minimum 3" length of bearing at each end or bear the entire length of the bearing studs. Beams shall bear on a minimum of 3"along their length and fully along their width and have a minimum of 2 typical wall studs supporting them, unless noted otherwise. Joists shall bear the full width of supporting members (stud wall, beams, etc.). Provide solid vertical blocking at all joist spaces below wood columns. Provide matching columns to foundation at lower levels below columns comprised of 3 or more studs. All beams and joists not bearing on supporting members shall be framed with prefabricated joist hangers. Beams or headers made of 2 - 2x's with 1/2" spacer shall be nailed together with 16d nails (.162" x 3 Yz") at 16" o.c. along each edge,typical for each lumber ply Spacing of bridging for joists shall not exceed 8'-0". Double all joists under parallel partitions. All plywood and OSB shall be installed per American Plywood Association standards, including the use of construction adhesive for fastening to floor joists. All fasteners and hangers in contact with treated lumber shall be G185 hot dipped galvanized or equal. Lumber grading rules and wood species shall conform to Voluntary Product Standard PS 20-99 as published by the Department of Commerce. Grading rules shall be by an agency certified by the Board of Review of the American Lumber Standards Committee. Performance requirements, adhesive bond performance, panel construction and workmanship, dimensions and tolerances, marking, and moisture content of Wood-based Structural-use Panels shall Appendix A, Highwood Road Residence,23Jan2013, MMY#: 13042.00,APG Page 4