I've been looking at them too Let us know how they work out.https://www.tractorsupply.com/tsc/product/producers-pride-universal-poultry-pen-8-ft-x-8-ft-cr0808
I purchased 2 of these chicken runs last week. I have 12 months interest free to pay for these with my Tractor Supply Credit Card. Can't wait to put them together when my coop arrives. They look strong and sturdy and are sitting in my carport.