not quite a server dude, lol... Not a dude and I'm a dev, not a sysadmin.

you are too?
There is no screen on the bottom, it's totally open. It could easily be made securable, but our chickens are free range 24/7 within the fenced area, about 2/3 acre, with dog keeping predators out.
The internal 2x4s are untreated fir for roosting and I chipped off the top corners and trimmed some width off with a hatchet. If I make another unit like this, I'll look for some thick branches instead of hacking up perfectly nice lumber. The sides are smoke tinted polycarbonate which I'm not sure will work out in the heat of summer. Might have to paint it, or replace with plywood. But it looks nice and didn't need finished so I'm hoping it doesn't get too hot.