What would the minimum door size be for a heritage turkey?

[FrontPorchIndiana]

My chickens are currently using pop doors that are about 12"x12" to get in and out of the coop. I'm thinking about sectioning off half the coop for a few heritage breed turkeys. I'm wondering how big of a door I would need for turkeys? I'm leaning toward the Narragansett breed.

 

[FrontPorchIndiana]

Maybe I should ask how big around your average turkey is?

 

[sandspoultry]

Ours are 12 by 18 inches, which is plenty big enough for the hens, our toms never go in the house.

Steve in NC