本帖最后由 APORO 于 2012-2-29 00:16 编辑 4 }5 {- L. s9 U$ L* \6 [ S
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measure 2 inchs away from inside face of window fram, there must be a jack stud/ king stud. ' G* {9 h% M# i/ L/ S+ |8 e% c+ }8 P
Or go as close as you can to the ceiling, and try to hit the double top plates.# u* i2 v; @: x% n7 t8 m: r