I was wondering if this coop idea sounded good. I was thinking of pouring a six inch concrete foundation with wire mesh in it and extending six inches up the wall. Then there would be a mesh floor (when I say mesh I mean small, you couldn't fit a pinkie through it). Over the mesh I would again like to pour concrete, just to make cleaning with a flat bottom shovel quick and easy. I'm not sure the exact dimensions as I haven't yet decided how many chickens I want (help figuring that out would be appreciated). The door would have a signifigant step up making it impossible or at least very difficult for rats to slip in under it. I know this all sounds excessive but we have a pretty bad mouse/rat problem around here. As for the run, would just enclosing it in 6 foot tall chicken wire work? I have plenty redtail hawks around here but a friend told me they only bother his chicks. I'm sure I missed some stuff so any and all constructive criticism and suggestions are welcome. Thank you!