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A Structural Design Associates <br /> `, - Engineering Sir,ieI tres to Last <br /> February 6, 2018 <br /> Robert Carey <br /> 3618 Colby Ave. <br /> Everett, WA <br /> Subject: Wall Opening—Construction Support Letter <br /> SDA Ref # 8246 <br /> To whom this may concern: <br /> At the request of Robert Carey this office reviewed the subject project to specify a typical <br /> header,posts, and soil bearing requirements for a 36" wide opening in the new stud walls that <br /> reinforce the existing structure. <br /> The opening shall consist of a 6x10 HF#2 header supported on built-up 2-ply 2x6 posts. These <br /> posts shall bear on a double 2x6 sill plate. The bottom of the sill plate shall be fastened to the <br /> existing 4"reinforced concrete slab with 5/8"strong bolt anchors at 48"on center. See attached <br /> SK-1 for connection details. <br /> Please contact this office if you have any questions concerning this letter,or for any other <br /> assistance. <br /> t' <br /> Sincerely, CO V A�: <br /> z',/, '�OF W/1s////C>,`Y. . <br /> il <br /> a t <br /> ,7.41' %WO <br /> to R4;3 83i e r <br /> ,,,,,,,/ ._,„ ' -4;?, - <br /> FEB 1 0 2018 <br /> Jasper Baarbe, E.I.T. Chris Covington, P.E. <br /> 22111 I Jewitt Ave,Snite 401 rxerctn, tW:1 98201 Ph: 425 139 (0291 Fax: 425 252 0'.)1( <br /> www.strtledes.com <br /> 1 I 5 <br />