That is funny.
AW inswing french came in 79.5 and 82 3/8.
Pella come in 79.5, 80 1/8 and 81.5.
+1. I was thinking the same
... although I do have to admit, as soon as builders started using "replacement/insert" sized doors in new construction, all bets were off. I don't think that there is a hard and fast rule on "standard" height anymore.