So, I'm trying to think up ways to build some raised beds that will act as "walls" for a chicken run, but I'm wondering how tall they'd need to be to keep my chickens from getting into them. PS: I don't have any chickens yet - my wife and I are still looking for the right piece of acreage. I'm wondering if you all clip your chickens' wings, or if you prefer to put a wire roof over the top of everything to keep them in and keep birds from swopping down on them? Here's what I'm thinking: 2 foot high planter boxes that run about 10-15 feet, parallel to each other with about 2 feet of "run" in between them. These boxes would only be about 6-8 inches wide, so that they were narrow enough that the bushes planted in them would drop their fruit down into the run eventually (mostly in the fall). Option 1: clip wings to keep them from flying up onto them Option 2: create removable sections of panel that lay on top of brackets on the inside walls and create a wire roof over the run Also... if I plan on having a fenced (8' - to keep deer out too) area of about 1/8 or 1/4 acre for them to free range in, would there be enough to keep them busy that they'd leave the actual plants in the boxes alone even if they could get up on them? Only planning on about 20 or so birds total probably. If I go this route, I may not need to worry about building a "run" unless they'll need a small one off of their coop during the winter... Thoughts, suggestions?