I hale from the South Hills, just over the line in Washington County.
The companies on my list are Precision, Rowco, 84 Lumber, Costco,
Lowes, and Overhead - arbitrarily ordered. I should add Johnson Door
from little Washington. They did a great job on the first door and now
I'm reconsidering steel. But I think they only carry Clopay. I am not
too keen on Clopay having read some things here. Thanks for the tip on
Accurate.

I think you are right about the steel within the door. It also has
steel for hinges and brackets.