Here are 2 ways. I used 12 inch wide by 4 feet plywood in all corners even around the brood pens. In this pic you can see the 5x7 tunnels i put in the brood pens so the chicks could come and go at will but the hens couldnt get in. I waited til they were large enough to fly and run so they could hop up on the roosts and run away from bullies. The bullying only lasted a few weeks and they quit chasing them but they still pecked at them when they got too close. They learn quickly who to stay away from.
Thanks for the ideas!
We used a cheap bed sheet over our smaller canopy frame to keep the tarp from rubbing and tearing on some of the sharp parts of the frame. Next time we are considering a thicker denim fabric or canvas-type wide fabric roll under the tarp to keep the tarp from tearing so fast against the metal frame. There is a fabric that Sunbrella makes that's pretty sturdy and UV protected but also fabulously EXPENSIVE but it works too. We will probably wrap foam around the sharpest ends of the metal canopy frame to see if that will maybe help cushion the tarp from fraying. In any event we have to replace our canopy tarps at least once a year because the brutal sun and heavy winter winds shred the cheap tarps. Shredded tarp strings can hobble a chicken's feet so its absolutely necessary to change tarps before that occurs.
You might check out a place that fixes motorhomes. They may have old awnings they would let you have for free or at a cheap price. Pull apart salvages sometimes have motorhomes too.