How many chickens will fit?

[thechickman04]

ok i am renovating this old shed that is about 40'x15' into a new chicken coop....How many chickens can i fit in there?

 

[Yogiman]

A whole bunch of'em. Seriously though:
If you do the math on square footage using the recommend 4 square fet per bird, you could house 150 chickens. Your building has 600 square feet. I'm not sure you would want that many chickens.