Thanks, folks.
No, I don't have any nesting boxes inside currently.
The chickens stay outside almost entirely until dusk.
They love those boxes. I've walked out for work and seen 2 or 3 hens at a time hanging out in them...and usually a rooster every now and again too!
Even when none are sitting, there are usually a few on the perches that hang out up there instead of on the ground. Best $35 I've spent on them...
That was a lot of hard work but it sure was worth it! Your coop looks great! Time to sit back and enjoy the chickens and wait on that first very expensive egg!!