Ok I guess this should say bad chicken owner-- thanks for clarifying! i did not calculate the dimensions right and that is good to know that they are overcrowded in the coop, and that it is definitely too small for them.
Inside the coop, there are 2 roosting bars measuring ~2 feet long each. The separate pen dimensions are 4 x 2 x 2 feet. I guess that would be 8 square feet of space.
So... I guess a question is where to go from here? From the picture I included, basically, I have been letting 2 hens into the coop to hang out, and 1 hen hangs out in the pen. Or vice versa. but I don't really put all 3 hens in the coop anymore, at anytime. So that means at least 1 hen sleeps outside in the pen, and at least 1 hen lays her egg in the pen. Coming back to this question, are either of these problems? for hens to sleep and lay eggs in the pen?
And... given the chicken dynamics of the most recently sick Amelia getting picked on a bit by her sisters, would it make sense to get a 2nd chicken coop, around this size? And just divide them up, so that 2 hens are in 1 coop, and 1 hen is in the other? I would still let them all free-range together, since they tolerate that overall. Anyway, would this be a sensible thing to do? Or is it better to just get a much larger coop that fits all 3 of them?
Thanks