4sq ft per hen in the coop and 10 sq ft per hen outside the coop.
So that is a total of 14 sq ft per hen.
And that is the Bare Minimum. It is much better for your hens if they have lots more room.
Online coop builders always drive me crazy with their chicken math.
Plus there is never enough ventilation! Coops built by chicken owners have big open windows!
Quote:
*From Framebow...
If built properly, your coop should have giant open ventilation areas. (1sq ft per chicken)
With that much open air, the temp inside the coop should be the same as the air outside of the coop.
So Insulation would not really...
DLM only creates heat when it is moist and can compost.
Here in the dry desert we don't have to worry about that so DLM works fine.
Cleaning it out every 6 months is dusty, make sure to get a mask.
Found it:
From: University of California, Davis
http://animalscience.ucdavis.edu/Avian/plhouse1.pdf
I used the concepts from this to build a 4x4 coop that I can unscrew and move with us.