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9/16/24, 12:07 PM Chapter 5 Floors: Floors,2021 Washington State Residential Code I UpCodes <br /> 2021 Washington State Residential Code <br /> R507.3 Footings <br /> Decks shall be supported on concrete footings or other approved structural systems designed to accommodate all loads in accordance <br /> with Section R301.Deck footings shall be sized to carry the imposed loads from the deck structure to the ground as shown in Figure R507.3. <br /> Exceptions: <br /> Footings shall not be required for free-standing decks consisting of joists directly supported on grade over their entire length. <br /> Footings shall not be required for free-standing decks that meet all of the following criteria: <br /> The joists bear directly on precast concrete pier blocks at grade without support by beams or posts. <br /> The area of the deck does not exceed 200 square feet(18.6 m2). <br /> The walking surface is not more than 20 inches(508 mm)above grade at any point within 36 inches(914 mm) measured horizontally <br /> from the edge. <br /> 12"MIN MANUFACTURED POST CONNECTOR <br /> IN ALLOWABLE SOILS <br /> TYPICAL PT POST <br /> P <br /> 12 <br /> GRADE <br /> 1 <br /> DIAMETER <br /> DFPTH �' PER TABLE THROUGH BOLTS <br /> PFR TABI F N BOTH DIRECTIONS MINIMUM 12' <br /> NOTE NOT SCREWS <br /> OF EMBEDMENT <br /> 4'GRAVEL <br /> NOTF <br /> POSTS MUST BE CENTERED ON OR IN FOOTING <br /> For SI: 1 inch = 25.4 mm. <br /> FIGURE R507.3 <br /> DECK POSTS TO DECK FOOTING CONNECTION <br /> https://up.cod es/viewer-export/washington/wa-residential-code-2021/chapter/5/floors#R507.3 1/1 <br />