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I <br /> 13'x29' Deck C R Rock, PE <br /> Deck Beam Summary <br /> Beam sizing is done using Str'uCaic with results in Attachment(2). Summary of beam and footing sizes is <br /> provided below. <br /> Deck joists-2x10 PT#2 HF joists 16"oc.Max span 12'-0" <br /> Deck beam- 6x10#2 PT HF max span 8'-0". <br /> Deck Posts-6x6#2 PT HF <br /> Deck Post base-Minimum 20"x20"x12"deep. 3#4 rebar each way <br /> Deck Loading <br /> wLL 60 lb Design Live Load based on Washington Amendments to 2018 IRC <br /> ft2 <br /> w DL'=10 lb Design Dead Load <br /> ft2 <br /> W deck'=w LL+W DL W deck=70 0 lb Deck design total bad <br /> ft2 <br /> Deck joists and beams are sized using StruCalc. See Attachment 2 program output. <br /> Ledger Attachment <br /> The ledger board shall be screwed to the existing floor rim board using minimum 0.227"Dia x 3-5/8"LedgerLok <br /> screws. Per FastenMaster ESR-1076(Ref(e))allowable single shear load of screws in 1 1/2"ledger <br /> v s:=233•lb per screw in Hem Fir. <br /> Check for maximum span with screws 8"oc and 6"oc. <br /> Spacingl :=6 in <br /> Spacing2 :=8 in <br /> 2•v s <br /> Spanl max Spanl max=13.3 ft Maximum span for 6"oc screw spacing <br /> w deck•Spacingl p p g <br /> 2'v s <br /> Span2 max:=w deck p g S acin 2 Span2 max=10 ft Maximum joist span for 8"oc screw spacing <br /> Screws 6"oc are adequate for all deck joists. Attach ledger with LedgerLok screws in two rows staggered 6"oc. <br /> Page 2 of 3 <br />