On Dec 18, 10:44*pm, wrote:
* I would like to run some new outlets in my garage. *There is
currently a subpanel located there, the run will be fairly short. *I
have a section of armored cable which was left over from work at my
office that I'd like to use. *I'm thinking of using a setup which I
have seen used in other houses, but want to run past you first.

* The armored cable has two 10-gauge (white & gray), 4 12-gauge
"hots" (various colors), and two 12-gauge grounds. * I'd like to use
it to run 4 20-amp circuits. *Circuits A and B would come off of
opposite phases, and share one of the neutrals and one of the
grounds. *C and D would be run similarly. *That way, neither neutral
would ever carry more than 20 amps.

* I know that I would never exceed rated ampacity for any conductor,
but I do not know the NEC well enough to say whether that will meet
current code or not. *Anybody want to chime in?

What about GFI outlets, since this is in a garage. I don't know the
code that well, but I think GFI's may be required for the outlets
since the garage floor could be wet.