Is there any downside to building a metal rack out of aluminum? My first tow concerns are 1) heat (little insulation) and 2) heat. Yeah, all of them revolve around heat. It I run wire through cut holes, I can add grommets .. no biggie, but I fear working with Flexwatt on a metal surface.

My concerns with heat are also confused but the fact that aluminum is conductive so the whole rack would be warm ... so .. would it really matter?

Anyone seen this done, ideas ... thoughts? The reason I bring it up is where I work we have a custom metals shop that can do just about anything .. and I am currently asking about it and the response so far is .. "we can do that". I don't know if I should move forward and try it out, or just leave it alone.

They can build it cheaper than RBI.