Thank you both for your responses.
My reasoning behind the wooden subfloor was more avoid the framing complications of shorter-to-longer studs in the walls (non-square), but if everyone thinks concrete base in the coop as well is good then I can go with that. @cavemanrich I would love to hear...
Hi everyone, this is my first time posting here.
My wife and I have been planning on adding a chicken coop to our yard here in Fallbrook, CA (north San Diego county). There is a preexisting 12' x 20' x 3.5" concrete slab where we plan on building it. I don't plan on utilizing all of this space...