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WA Residential Code 2018 <br /> 4 <br /> R602.3 Design and Construction <br /> Exterior walls of wood-frame construction shall be designed and constructed in accordance with the provisions of this chapter and Figures R602.3(1)and R602.3(2),or in accordance with <br /> AWC NDS.Components of exterior walls shall be fastened in accordance with Tables R602.3(1)through R602.3(4).Wall sheathing shall be fastened directly to framing members and,where <br /> placed on the exterior side of an exterior wall,shall be capable of resisting the wind pressures listed in Table R301.2(2)adjusted for height and exposure using Table R301.2(3)and shall <br /> conform to the requirements of Table R602.3(3).Wall sheathing used only for exterior wall covering purposes shall comply with Section R703. <br /> Studs shall be continuous from support at the sole plate to a support at the top plate to resist loads perpendicular to the wall.The support shall be a foundation or floor,ceiling or roof <br /> diaphragm or shall be designed in accordance with accepted engineering practice. <br /> Exception:Jack studs,trimmer studs and cripple studs at openings in walls that comply with Tables R602.7(1)and R602.7(2). <br /> TABLE R602.3(1) <br /> FASTENING SCHEDULE <br /> ITEM DESCRIPTION OF BUILDING ELEMENTS NUMBER AND TYPE SPACING AND LOCATION <br /> OF FASTENERa,b,c <br /> Roof <br /> 4-8d box(21/2"x 0.113")or <br /> 3-8d common(21/2'x 0.131");or <br /> 1 Blocking between ceiling joists or rafters to top plate Toe nail <br /> 3 10d box(3"x 0.128");or <br /> 3-3"x 0.131"nails <br /> 4-8d box(21/2"x 0.113");or <br /> 3-8d common(21/2'x 0.131");or <br /> 2 Ceiling joists to top plate 3 10d box(3"x 0.128") or <br /> Per joist,toe nail <br /> 3-3"x 0.131"nails <br /> 3 Ceiling joist not attached to parallel rafter,laps over 4-10d box(3"x 0.128");or Face nail <br /> partitions(see Section R802.5.2 and Table R802.5.2) 3-16d common(31/2"x 0.162");or 4-3"x 0.131"nails <br /> 4 Ceiling joist attached to parallel rafter(heel joint) Table R802.5.2 Face nail <br /> (see Section R802.5.2 and Table R802.5.2) <br /> 4-10d box(3"x 0.128");or <br /> Collar tie to rafter,face nail or 11/4'x 20 ga.ridge strap to <br /> 5 3 10d common(3"x 0.148");or Face nail each rafter <br /> rafter <br /> 4-3"x 0.131"nails <br /> 3-16d box nails(31/2"x 0.135");or <br /> 3-10d common nails(3"x 0.148");or 2 toe nails on one side and 1 toe nail <br /> 6 Rafter or roof truss to plate 4-10d box(3"x 0.128");or on opposite side of each rafter or truss' <br /> 4-3"x 0.131"nails <br />