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PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 19 <br /> GUARD REQUIREMENTS 24. Other methods and materials may be used for guard <br /> All decks greater than 30" above grade are required to construction when approved by the authority having <br /> have a guard [R312.1] -one example is shown in Figure jurisdiction. <br /> Figure 24. Example Guard Detail. <br /> 24 baluster,-Weisel <br /> 4x4 post typical-1 or 5/4 board all can:attach to guard post with <br /> t-0,-------6'-0"maximum spading FP)#12 by 3"long screws or(a)led threaded nails <br /> IX)NOT NOTCH i with I)tor nominal diameter <br /> ._, \ <br /> 111.—" " _ <br /> 1- <br /> 6. ,., <br /> minimum , , 24ion and bottom; <br /> attach to guard post with <br /> (OM threaded nails or <br /> .1 L . t2)#0.wood sorews,4,0A. <br /> 6 "\ .... long on Inside face <br /> 6 ...* minimum nominal 2x8 <br /> , <br /> 0 .. rim or outside joist <br /> (2)1/2 \diameter shall n 'ot allow attach balusters at and bottom . <br /> through-bolts -openings 8 the passage of a 4with(lyila wood screw or(2)8d <br /> - " <br /> and ash <br /> diameter antlers post-frame threaded nada With <br /> 0,13,5"nominal diameter <br /> GUARD POST ATTACHMENTS FOR REQUIRED Figure 25. Guard posts for required guards that run <br /> GUARDS perpendicular to the deck joists shall be attached to the <br /> Deck guard posts for required guards shall be a rim joist in accordance with Figure 26. Only hold-down <br /> minimum 4x4(nominal) with an adjusted bending anchor models meeting these minimum requirements <br /> design value not less than 1,100 psi. Outside-joists and shall be used. Hold-down anchors shall have a minimum <br /> rim joists to which guard posts are attached shall be a allowable tension load of 1,800 pounds for a 36" <br /> minimum of 2x8(nominal), maximum guard height and be installed in accordance <br /> with the manufacturer's instructions. <br /> Guard posts for required guards which run parallel 16-the <br /> deck joists shall be attached to the outside joist per <br /> Figure 25. Guard Post to Outside-Joist Example. <br /> Nom* see FIGURE 24 for guard guard posts can be installed as <br /> . domPorieht attach em shown in Figure 26(between joists) <br /> guard posts may be i <br /> located on either side requirements if blocking is installed as shown below <br /> ' <br /> elle outside-jOrst within 12'of each side of the post <br /> i <br /> i <br /> i <br /> 1 <br /> at first interior bay,provide 2x blocking at guard posts <br /> guard Poet i with hold down anchors: attach blocking with lad <br /> i <br /> threaded Ostia top and bettern,each side <br /> (2)112"dia,through- i outsidejoist---. - <br /> bolts.and washers , 17 mitt,24(norm) <br /> ., allallinlow <br /> 2" Alternate attachment of hold-down - '• ' 41Ie 4 <br /> Oltn. - , reY4'--.1. anchors to fronting rnerribers , <br /> . . <br /> 11 <br /> 2-1/2"mm .end 5"ina>c 00 P Ole per manufacturer's''''''-') 6' <br /> A <br /> 2*-ruin. A° A instnu ions. Jr <br /> guard post* <br /> outside-joist SECTION PLAN VIEW <br /> rain.2x8(rtom,) 33 1) <br /> CI I C- 01, L <br /> American Wood Council <br />