There are a lot of different designs he can choose from. Here are a couple from a search.Thank you! I am going to see if hubby can make something like this![]()
https://duckduckgo.com/?t=ffab&q=a+frame+portable+chicken+run&iax=images&ia=images
If you want it to be predator proof you will want to use 1/2" hardware cloth and have 18" of the same on the ground surrounding the footprint of it. If they won't sleep in it, or you will be around while there are in it you can skip that step. Let us know if you have any more questions.
