本帖最后由 APORO 于 2012-2-29 00:16 编辑 % r" b4 m/ W4 l( V2 h0 ?
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measure 2 inchs away from inside face of window fram, there must be a jack stud/ king stud.% _& R# |8 f9 p7 p
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Or go as close as you can to the ceiling, and try to hit the double top plates.0 D& c; [! f7 _# c