Maybe, maybe not.....having a hiding crate that only the smallers can get into if they need it works pretty good.
I took the door off a medium dog crate and covered the opening with 2x4 welded wire fence with a corner bent up enough for the smallers to get thru.
I took the door off a medium dog crate and covered the opening with 2x4 welded wire fence with a corner bent up enough for the smallers to get thru.