I think on a wood floor a good sturdy exterior paint is a good bet. I have put down vinyl flooring and had it torn back up by the chickens. Anything that seals the moisture from getting to the underlying surface should work.
That sweet giant.
She does look miserable. I'm glad that she'll go outside and scratch around a little bit. There really isn't much you can do other than offer them the best of care, and wait.
They are incredibly nosy about everything, every time I go in the pen he's somewhere close by me but acting like he's just there by chance. Last summer I had five little roosters all in that pen with the hens and never a fight.
And likely get some advantage from having that wood in there, helping to retain moisture and slowly decaying.
You don't need stainless steel rebar either, regular steel rebar, even though it rusts, will last beyond our lifetime. A lot of times lumber yards will cut them for free for you, and...
I wonder if moving him around a little bit with a long stick would work? I've done that with a few birds that got a little too cozy and just taught them to watch their distance. Never whacked or swung the stick, just tapped them with it if they got close enough for me to reach. Mostly with the...