What wire to use instead of Romex

Thanks @zlone and @ditusa 

I'm definitely going to have an electrician do the install for me.  I'm okay with working on 110, but I don't trust myself around the main panel!  Looking at MC cables on Amazon and HomeDepot.com, they all seem to be aluminum-clad, not steel, and both stranded and solid core copper are available.

New Q1: Stranded vs Solid Core?
New Q2: Any tips on where I can find steel-clad? 

Thanks again!
Patrick

@jea48 @ghdprentice @nwres @zlone @ditusa 

The distance measurement is a down-over-across-farther down rough measurement.

Flexible conduit is allowed by code. My town's fussy code inspector saw what I was using for me EV charger outlet run and was fine with it. Romex is perfectly acceptable too as far as code is concerned, but not a good idea to put inside conduit. As I said before, the HOA wants any wires in the garage inside conduit, presumably for a uniform appearance as the garage is a shared area with four bays, one for each condo in the building (there are 86 buildings).

I fully expect to get a funny look from any electrician when I specify, "Metal Clad (galvanized steel, not aluminium) 10 AWG Solid Core Copper w/Insulated Stranded Ground. Twist the hot and neutral together before pulling the wires and run the ground along side."  I'll just shrug my shoulders and smile when he shakes his head and/or rolls his eyes.

Thank you all for the input. It's very appreciated!

@jea48 (and @ghdprentice @nwres @zlone @ditusa)  I did read from the two sources you linked. To be honest, a lot of it went over my head. Taking everything into consideration, would it be more advisable to:

A. Use the pre-made steel-clad with all three solid-core wires twisted
B. Use two solid-core wires twisted together with one stranded along side for ground and pull the three wires through flexible steel conduit

Oh, and should I specify THHN wire?

I also should mention that my HOA doesn't want Romex inside conduit in the garages, so that is not an option for me, While I THINK it's okay by code, I have been told that Romex can generate heat inside conduit.

@jea48

Next week I'm going to stop by a local electrical supply house that I've been to before and buy the cable myself. I should probably get a more accurate measurement in case I can purchase by the foot and save a few bucks versus buying a 50-foot run (if it's even available in that length).

I didn't even know about anti-short bushings. Thanks so much for the links. At first I thought it was more like a grommet to line the hole into the panel box. Seeing the video of how they're installed, it definitely makes sense to me to use them. I'll grab a couple either at Home Depot or the supply house, so long as they don't obscenely overcharge for them and if they're not already included with the cable.  I'll keep you and the others here in the loop. Have a great weekend!