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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 Debit s for ledger <br /> connect on cptwns <br /> Joist Hanger <br /> Joist <br /> Decking <br /> Verily span ratings of r <br /> proposed decking. <br /> Joist Overhang � i <br /> 24'maximum ♦ / f�� <br /> �` <br /> See Page 6 <br /> for Ledger <br /> Joist Spacing iT Attachment <br /> See span table and <br /> footing schedule. POS <br /> �3 r <br /> Post Spa <br /> 4x4 min,up to 8'0'height '� See epan table <br /> SoC min.up l0 10..0'height <br /> Beam <br /> Non-corrosive metal See span 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. Soo span table and <br /> Iool ng schedule. <br /> Beam Overhang <br /> 24"maximum <br /> January 14, 2022 MyBuildingPermit.com I Basic Deck <br /> eCityGov.net <br /> 2005 c eCllfGeAliance <br />