Just shy of full floor to ceiling I would say around 6 feet long.
Yes, bees in soffits are interesting. That is there prefered location in Florida becasue attics are to hot. I don't mind doing them I mind telling homeowners that fixing the holes I am going to make is going to be expensive.
The nice thing about soffits is they usually fit right into medium frames.
While that is probably the longest. I have learned not to like long comb on feral hives.
One the comb is very flimsy and can break or mash into the next piece far to easily. I had a cut out at a horse stable that had comb that was about four feet long but almost six feet wide. It was a couple of hundred pounds when all was said and done. most of it was honey comb. It was a disaster to deal with. Also the bigger the hive the more bees to defend it should they get testy or I screw up. I will stick with my soffits. I have one in a cinder block wall coming up that will be very ugly. It is the first time I have accepted a job and said I am not sure we will be able to save the hive. Usually if they are in a tree trunk and I can't get to it I tell people leave them alone. Because trying to cut them out of tree trunk is next to impossible. When I take the chop saw to the block wall I have structual issues that have to be dealt with. The cut line will fill the hive with concrete dust. Removing the cut blocks will break the comb. Just an ugly job no matter what you do.