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. ' _____. , [ , <br /> Handrail Details <br /> All stairways with 4 or more risers shall have at least one handrail. Such handrails shall be placed not,less <br /> than 34" nor more than 38" above the nose of the treads and shall be continuous for the full length pf the <br /> flight. Handrail ends shall be returned or terminate in the newel post or safety terminals. Handrails adja- <br /> cent to the wall shall have a space not less than 1 1/" between the wall and the handrail. Circular hand- <br /> rails shall have an outside diameter of at least 1 /4" and not more than 2." Handrails with a perimeter <br /> greater than 6 %" shall provide a graspable finger recess on both sides. Handrails shall not project more <br /> than 4 1/2" on either side of the stairway. IRC R311 <br /> 1 v2 tN.MIN. 1112 IN.MIN. 1/2 IN.MIN.. <br /> a <br /> 1'/;IN.TO 2 IN. is . 1 T/4 IN.TO 2 IN. <br /> 11/2 ftI.WI. <br /> 0/2 IN.MIN. <br /> /11/4 IN.TO 2 IN. 31/2 Ni.MAX <br /> I' '1 <br /> 7 0/;IN.TO 2 IN. <br /> NOT ACCEPTABLE <br /> NOTE: Other shapes may be acceptable if they provide an equivalent gripping surface. <br /> See third paragraph of Section 1003.3.3.6. <br /> 4_4. is%ci^�+z4 <br /> �11 Ii / <br /> ^- tP <br /> IV <br /> > 2'!,�ra:> _ 2 <br /> 4 . <br /> FOUNDATION <br /> SUPPORT SYSTEMS <br /> • Decks 30"or less above grade: Minimum 12"x12" <br /> manufactured pier. <br /> • Deck 30" to 5'0"above grade: Minimum 14"x14" <br /> manufactured pier set 12" below grade. <br /> ca Decks greater than 5'0" above grade: Minimum <br /> 18"x18"x18" poured in place footing set 12" below grade. <br /> All deck posts shall have a positive post to footing and <br /> positive post to beam connection. <br /> Deck height is measured at the lowest point within 5'0" <br /> beyond the walking surface of the deck. <br />