I live in a neighborhood of mostly Colonials (all built in 1948).
Most of them have this little roof thing-ee over the front door; I
think it's called a "portico."

Is there some kind of kit for such things? I looked at HD and Lowes,
and couldn't find anything. (At least not for the keyword "portico".)

Reason I want to get one, aside from the added convenience of rain
protection when one is fumbling for one's key, is that the sun really
heats up the front door. (Door faces W, or perhaps WSW.)