DIYbanter - View Single Post - Installing ceiling fan from an angled ceiling

wrote:
There are heavy duty electical boxes made specifically for installing
ceiling fans in old work. They are a metal box together with an
expanding rod that goes between the 2 joists. It sounds like that
might be what you already have? The whole thing can be grounded by
attaching a wire from the ground on the wire entering the box to the
box with a screw.

No, what I have done is repositioned the wireing into an entirely second
hole. The original hole was only for a light mount, and was screwed
into the drywall. I didn't want the fan falling on me, so I moved this
over about a foot to a beam. I have 4' wires for extending the existing
connections, which I attached with some wire nuts. I have to deal with
the old hole, but that's not a functional issue.

The problem now is that I see something labelled "wiring box" on the
diagram. I certainly don't have it, and it isn't a part of the things
that came with the kit. From what I can see, I have the wires, a beam,
and something to mount into it. I figure I am set but I want to make
sure I'm not missing something with that box. The only thing I can tell
it helps with is distributing ground to the fan. That can be remedied
easily enough by attaching ground to all the ungrounded spots.

What I'm concerned about is if that box is supposed to provide some kind
of stability or strength.