RemodGuy wrote:
Wire is cheap,
boxes are cheap, breakers are cheap.
Best -- Terry

Where do you live that wire is cheap? It's gone up almost 400% here in
the last year.

I just checked Lowe's and 100' of 12 gauge with ground is $59. The
price I recall is $20, so clearly you're correct, wire appears to have
gone up quite a bit.

However, the original poster indicated that he was having a metal
building erected, he wants heat & air, storage, windows, garage door
opener, etc. What's the cost? (I honestly don't know) $4000? If
that's a decent ballpark estimate, an extra $120 of materials for two
more 20 A circuits seems a trivial addition. And a wise investment.

The purpose of a shop is to house tools to be used. The more tools the
better; remember, he who dies with the most toys wins. :-) Lots of
capacity is probably a good thing.

Best -- Terry
.....who is trying his best to win, much to his wife's dismay....