14 CC's in a 4X5 area so just over 1 sqft a bird. I know it could be bigger. anyway, cleaning the litter once a week won't work. Mine were 4 weeks on Tues and I have to dig out wet. poopy, smelly litter everyday and put infresh shavings. These 14 birds go through 2 gallons of water a day and it all passes right through them. Pulled 2 out to separate and prepare for a Sunday night date with the freezer(almost 5 weeks). I wish I had a small scale to see what they weigh. they are little chunks that is for sure... We'll see how my first attempt at chicken processing goes.