I would say the best material would be wood..round is preferred.
PVC is too slippery and metal can be too cold or hot.
i heard chickens like to roost on tree branches in the wild.. so if you can find some tree branches that are rounded and big enough. then it would be perfect!
originally, i used 1x2 rods ( i rounded the edges with the sander).. but they are bit too small
so i switched to those wooden mops i have lying around the house. They like them better.. I still have some around the house so i'm thinking of making a swing out of them for them as well.
closet rods will also work
or you can go to home depot and get those 2x2 rods (rounded the edges first) to use as perches. If you have large breeds then maybe get rods with larger diameter
lastly, it will be easy to clean if you can make them removable :)
the floor of my coop is also removable (if needed)
Edited by BruceAZ - 5/25/16 at 2:47pm