Originally Posted by master66
there should be some method of calculating the size of the neutral conductor Brian


The 12 wire should be adequate for the load wink
(cheap shot I know)

I think everyone is just site engineering these as they go along but when I've done it we used a #10 with 3 #12 hot.

But it may all be moot anyway since paired MC is being used in most jobs now anyway.

Right from the panel no conduit on the job at all. awful.

Design-Build isn't supposed to mean design *as* you build.