Thanks. I have rabbits outdoors, but they're not all bonded, so have three cages made in the shed (2 bonded rabbits in one, one single rabbit in the other two), each about 6ft X 2.5ft, so I could either attach runs to the shed, but the runs would be smaller too fit three by the side of the side, or let them take turns in a big run.

If they take turns though, they might each only get outside every second day, because I can't be switching them around all the time when I'm not home. Unless I get a second run, yeah I think I should.

(The runs are safe to be used when I'm not supervising.)
Right now I have them taking turns in a run, the good thing about that is they can go out on the grass. The bad thing is they have to be carried to the run, and some don't like that! And that they don't have access to it all day.
I'm thinking I'll get a second run though so two rabbits can be out at one time, so they have company when in the run, and that everyone gets out for half the day.

I can put one pair out in the morning, and one in the evening. I might even be able to join the runs together for the bonded pair. And I think I'll have them on the grass because there is more space, but can move them to the concrete if they eat all the grass or dig!
Thanks guys

Just wanted to make sure that space was ok for them.