🐔 Space guidelines: Standard chickens need 3-4 sq ft inside coop and 8-10 sq ft in run. Roosting bars: 8-12 inches per bird. Nesting boxes: 1 per 3-4 hens.

💡 Pro tip: Always build bigger than minimum — more space reduces stress, pecking, and disease. Larger breeds need extra room. This calculator includes both coop and run recommendations.