On Fri, 13 Oct 2017 16:11:37 -0500, dpb wrote:

On 13-Oct-17 2:53 PM, Leon wrote:
...

The jam is typically under the steel angle iron that supports the brick
and or in this case the arched 2x12.

No wonder it rotted...all that sugar! (missing a 'b' here we are...
) Of course, the portion in question is the head; the jambs are the two
verticals. And, yes, slap me w/ the pedant noodle...
I guess the word I was looking for is "casing" or "Door-Frame"