Go to the "Articles" section on BYC. There is an area dedicated to coops, sorted by size. I did a search on "pallet coop" and this came up:
https://www.backyardchickens.com/articles/recycled-material-coop.73176/
So, they disassembled the pallets to use the materials in the above link. If you just want to use the pallets, you will come up against various sizes, and quality of build - they are made to hold things stacked up on top of them, not be used as construction material, so you may be spending time reinforcing the pallets to use them in their original form.
So what did you use before your two chickens got injured? You must have an outdoor space/coop for them. Your available space might dictate some of your build specs. Our space did - we wanted to use an existing dog run (10'x 50'), so had to build accordingly.
https://www.backyardchickens.com/articles/recycled-material-coop.73176/
So, they disassembled the pallets to use the materials in the above link. If you just want to use the pallets, you will come up against various sizes, and quality of build - they are made to hold things stacked up on top of them, not be used as construction material, so you may be spending time reinforcing the pallets to use them in their original form.
So what did you use before your two chickens got injured? You must have an outdoor space/coop for them. Your available space might dictate some of your build specs. Our space did - we wanted to use an existing dog run (10'x 50'), so had to build accordingly.