I've got 8 girls and they're large, one is Orpington size. Not as large as your Jersey's but still good sized birds that need a lot of room. My communal nesting box is 4 ft. wide but is about 24 in. tall and about 14 in. deep. It's a bit of an optical illusion as the top is slanted on both the...
I have a communal box, one large box for 8 hens. It's 4 ft. long and we've had as many as 4 girls in there laying at the same time. The back of it opens so that we can collect eggs from outside. I used to have separate boxes but they'd all fight over the same one. Figured I'd give them one big...