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Structural Design Associates <br /> North Star Building <br /> ?210:iewitt Ave, Suite 401 <br /> Gverett, WA 98201 <br /> (425) 339-0293 ( � {"C��' l. 1 � <br /> June 26�', 2006 <br /> Mr. Jakc Mitchcll <br /> 8533 Gastview Avc <br /> Gverett, WA 9820R <br /> Subjecu Kitchen Roof Dcam and Living Girder I3eam Sizing <br /> 3521 Norton Ave Everett, WA 98208 <br /> SDA Rcf: 1f4273 <br /> To whom this may concem: <br /> At thc requcst of Jake Mitchcll, bcam sizing under gravity load was performcd to determinc <br /> if the ra�f beam abovc the kitchen and the girder beam below the living room of the subject <br /> residencc are structurally sufTicient tor the gravity load. <br /> The exis[ing kilchen roof beam is a 4x12 DP-i, H2 spanning IS'-0". This beam takes roof <br /> Ioa�J Gom the exterinr porch as well as tributary roof load from the gable end. rurrently tha <br /> 4x12 is at 53.7 "/o of its bending capacity, see attachcd calculation "IA". This is adequate to <br /> support the loading. <br /> The exisling living room girdcr bcam is a 6x l2 DP-L N2 spanning I S'-0", with a post at mid <br /> span. An existing girder is spaced approximatcly 6'-10" towards the living room side of the <br /> house and n stcm wall is approximatcly Y-R" lowazds lhc exterior of the house. 'I'he 6x12 <br /> girder takes floor load only. Currcntly thc 6x12 is at 41.6% of its bending capaci!��, see <br /> aUnchcd calculation "I B". This is adcquate to suppoA thc loading. <br /> '1'his report is bascd upon information provided by the builder, as such the Accuracy of these <br /> calculations is dependant upon the accuracy of thc infonnation provided. Pleasc reference the <br /> attached calculations for further inforniation and contact this office with any questions <br /> regarding this rcport. <br /> Pleasc contact this ofTice with any questions regarding this rcport. <br /> �a•�a;;� <br /> ��'�'.'!,,, <br /> Rcgards, `�,>Z� pFWa.Sy���G <br /> � C+ aw �^�, "�cr '1- <br /> ���- 1,ti� d�°:3� i � <br /> Wi11131anchard, I:.1.T _ _ �, ' ' _ � `' <br /> Pmjcct Gngincer �� , �;, , . .. , I i.L : �,I� � ,. �f <br /> �'i � '�' d �a}n; / � <br /> � � Ii � ECIS1'E���r,'�"" <br /> , n �i J �S/pNAL 4-�`G� <br /> '.� � JUN 2 � 9n. <br /> ,J �- ., ,, . <br /> I c�rY �r L'��` �F%P�RES�,I • ; <br /> �,-,i�- �, <br />