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�MyBuildingPermit.com <br /> a service of eCityGov.net Construction Tip Sheet 05 <br /> Basic Deck <br /> This tip sheet reflects code requirements of the 2018 International Residential Code (IRC) with <br /> Washington State Amendments. <br /> Typical Deck <br /> This document provides building code information applicable to prescriptive residential wood <br /> deck design. You may need to hire a licensed architect or engineer to design a deck where any of <br /> the following conditions apply: <br /> • The deck serves other than a one- or two-family dwelling building <br /> • The deck design includes more than one level <br /> • The deck will support a hot tub, spa or other heavy object, including heavy deck covering (such <br /> as pavers) <br /> • The walking surface is more than 14 feet above grade <br /> • The deck ledger is attached to house overhangs, bay windows, bricks, stone, or concrete block <br /> • The deck is bearing on ground with a slope greater than 1 foot horizontal for every 1 foot <br /> vertical <br /> • The deck is self-supporting (not attached to an exterior wall) <br /> Ledger <br /> See Detad t for ledger <br /> connector options <br /> Joist Hanger <br /> Joist <br /> Decking `. C <br /> Vonly span ratings of �i <br /> proposed dedring -> <br /> Joist Overhang '�' %`/�AA <br /> 24.maximum s`/',/ i/ >> /`;1�7� <br /> 1.4107 . �_ ,. i i, <br /> 7..›. <br /> s �' See Page 6 <br /> F �� r • ,-r'' for Ledger <br /> Joist Spacing j Attachment <br /> Soo span table and „" />J - is <br /> fooling schedule. <br /> Post Joist Span <br /> 4x4 min up to 8'-0'height "-`1" Sea spin fable <br /> 5x6 min up to 10'0'height <br /> Non-corrosive metal scBo easpman table <br /> post/beam connector Note:Guards are <br /> required when the deck <br /> Continuous solid blocking walking surface is more Footing <br /> between joists than 30"above grade. See span table and <br /> footing schedule <br /> Beam Overhang <br /> 24"maximum <br /> January 14, 2022 MyBuildingPermit.com I Basic Deck t <br /> eCityGov.net \ `'A <br /> 2005'c eCitvGca.Atiance <br />