If you have a back yard you just may have room. They don't stay in the yard so they will make their own room. I have one set up with room for up to 4 in 2 cattle panels folded to 2 tee post, in an oblong circle. I need 2 more t-post to keep the bull from pushing them to get to better grass.I WANT BEEEEEEEEEEEEES real bad. but I don't have the backyard space.
If they need to go up you can put the front near a privacy fence or thick bush and they will go up and over. If it's over 6' you may not even see them on the other side.