1

On top of the cabinet wherever the closest stud is to the left is probably good and if you have wide stud spacing an anchor on the far left side of the top instead or in addition. Note that drywall anchors will feel stiff and strong up to the point where they fail.


1

I know this is an ancient question, but... It appears that the other corners of the box have smaller holes. The ceiling material just needed to be cleared away from them in order for them to have been used.


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