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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 Oetad 1 for ledger <br /> connedson options <br /> Joist Hanger �� <br /> Joist <br /> Decking `; <br /> Verity span ratings of ,r <br /> proposed decking. <br /> Joist Overhang � <br /> 24'maximum. �.,�ry'`�����\� �,/ <br /> )17/ <br /> 411°A0-1,,i ,,, <br /> *.:**'.4....%- ,/ /,// 46.. .,, ' o- <br /> 0./.„4;744010-2 ..,5" ,/, / ' , -'41.F. <br /> // ,0°. <br /> ,.." /%..//'/ <br /> 100, <br /> `� See Page 6 <br /> F ` • <br /> for Ledger <br /> Joist Spacing �44,7 <br /> Attachment <br /> See span table and "-t,l. C tooting schedule. /, il:. t <br /> I <br /> Post Y Joist Span <br /> 4x4 min up to 8'0"height 4- <br /> Sx8 min.up to t0'0'height Son span table <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. See span table and <br /> tooling schedule. <br /> Beam Overhang <br /> 24'maximum <br /> January 14,2022 MyBuildingPermit.com I Basic Deck <br /> eCityGov.net /2.1Io <br /> 22005,5.aCityGavAliance <br />