本帖最后由 APORO 于 2012-2-29 00:16 编辑 ' O2 I" J2 u- I( t2 `' |4 ?# @3 p& J
measure 2 inchs away from inside face of window fram, there must be a jack stud/ king stud./ c- }- F1 J( U# |% Y
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Or go as close as you can to the ceiling, and try to hit the double top plates.3 E7 b0 M7 C2 k+ l( Q. V4 }1 c