Thanks! will look and yes human access is from outside. poor boards will be 18" off bottom of the coop and roosts 8" above that. so figured boxes around 12" or so but that would be about 6' off bedding so wasn't sure if too low to the floor.Yes, especially if the human access to nests is outside the coop.
Here's some thoughts on heights:
https://www.backyardchickens.com/articles/coop-stack-up-how-high-stuff-works-well.73427/