How big of a pen do I need?

[Rice]

I have 7 straight run French Black Copper Maran chicks. Not sure how many I am keeping from this batch but in the end I want 2 roos and 6 hens. How many sq ft per bird do I need in the pen?

 

[Judy]

The standard answer here is usually 10 sq ft per bird, assuming they will also have a coop -- but, really, as much as you can provide.