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O <br />I~ <br />TABLE C-1.2 <br />` TIHBF.R TRENCH SIIORINC MININUH TIMBER REQUIREMENTS + <br />SOII. 1'1'PE B P a - 45 % II i 72 pef (2 Ct. Surchurye) <br />*w <br />DEPTN <br />ROSS <br />IUCH <br />S <br />WALE <br />S <br />UPRICIITS <br />OF <br />TRENCII <br />~~ORIZ. <br />WID <br />TH 0 T <br />N <br />rFEETI <br />VERT. <br />pER <br />l1NC1lNM ALLOWABLE fIOR120NTAl. SPACING <br />SPAClNC <br />li"O <br />UP TO <br />UP TO <br />UP TO <br />UP TO <br />SPACING <br />SIZE <br />SFACTIJC <br />(FEET) <br />(FEET) <br />(FE6T) <br />4 <br />6 <br />9 <br />12 <br />IS <br />(FEET) <br />(IN) <br />(FEET) <br />CLOSE <br />2 <br />3 <br />S <br />UP 6 TO <br />4X6 <br />4%6 <br />6X6 <br />6X6 <br />6%6 <br />5 <br />6X8 <br />5 <br />2X6 <br />ue ro <br />TO <br />6X6 <br />6X6 <br />6X6 <br />6X8 <br />6X8 <br />5 <br />8X10 <br />5 <br />10 <br />UP T0 <br />10 <br />6%6 <br />6X6 <br />6X6 <br />6X8 <br />6X8 <br />S <br />10%10 <br />5 <br />286 <br />Sec <br />. <br />UP TO <br />6X6 <br />67(6 <br />6X6 <br />6X8 <br />67(8 <br />5 <br />BX8 <br />5 <br />2X6 <br />10 <br />6 <br />UP TO <br />8 <br />6X8 <br />6X8 <br />6A8 <br />BXB <br />BXB <br />S <br />107t10 <br />5 <br />2X6 <br />TO <br />UP TO <br />15 <br />10 <br />S <br />IOX12 <br />5 <br />2%6 <br />Scc <br />No[e t <br />UP TO <br />6 <br />6X8 <br />8X8 <br />BX8 <br />5 <br />BX1 <br />0 <br />S <br />3%6 <br />1S <br />TO <br />UP <br />8 <br />N <br />B%B <br />8X10 <br />S <br />IOXII <br />5 <br />7%6 <br />TO <br />UP TO <br />10 <br />B%10 <br />10%10 <br />S <br />12R12 <br />5 <br />3%6 <br />Z0 <br />See <br />Note l <br />OVER <br />20 <br />SEE NOTE 1 ' <br />+ Mlxed oak or equlvalent wlth a bending etrength no[ lese than 850 pe1. <br />Planufnc[ureJ mcmbere of equivalent strength may Dy eubstleu[ed for wooJ. <br />M <br />~ <br />0 <br />r <br />x <br />0 <br />~ <br />O <br />a <br />ae <br />~ <br />~ <br />7d <br />~ <br />a <br />~ <br />a <br />~ <br />a <br />0 <br />~ <br />i <br />~ <br />~ <br />n <br />~ <br />~ <br />R1 <br />. <br />