Deep Litter on concrete pavers - how deep does it have to be?

6" should be fine. If they dig any deeper it will only help to keep their nails trimmed.

 

I agree, 6 inches should be fine. I have concrete under my run and I put bedding down on top of it. It is only 4" deep due to the width of the 2 x 4 framing around the bottom of the run. I keep adding bedding on top as it compresses and breaks down. I clean it out and compost it every 3 to 5 months and start over. It seems to work well for us and I have never had to trim any chicken nails. The bedding is much deeper inside the coop.