What is the right size?..for my pop door

[kybeagle]

I have read in different places where the correct size for a chicken house pop door is 9X12, but that looks small to me. My chicks are only 5 weeks old now and they are about 6 inches wide and 10 inches tall. Got my coop up, just finishing some painting and getting ready to cut in the pop door. What does everyone here recommend?

 

[ChooksChick]

Mine are about 9x10", and I have large birds. They duck their heads, and I prefer to have as little a heat leak in Winter as possible. In Summer the 6' double people-door is wide open, as well as the 2 pops, to connect the people yard and 2 runs.

 

[kybeagle]

Quote:
Renee, are you saying your pop door is 9X10 or your birds are that tall? That just sounds small to me for a pop door!

 

[chickendude]

I have large RIR hens and my pop door if I remember correctly is 12x12. Perfect for them.