Portable coop size?

[kakayona]

I plan on building a portable coop to house some meat chickens. It is going to be roughly 9x7 and 3 feet high. How many chickens can I fit in there without cramping them? TY

 

[polarbearpilot]

If they are the type that just like to eat and sit such as Cornish Rock, then I think you can put up to 15 chickens (roughly 4 sq ft per chicken). I am thinking about raising some meat birds, too, but not sure if I can bring myself to slaughter and eat them.