I'm wanting to do a raised coop. I've been thinking of using sand - that's what I have in my brooder now, and it's working very well! I'm loving it. I'm wanting to do a raised coop with a run next to it and under it (similar to this model but to my own specifications), and I'm going to be putting a bottom on the run and using sand in the coop and the run. Has anyone else done this or something similar? I'd love any comments on your experience, any problems you've had, the good points, to this, etc. etc. Just, really, any thoughts at all. Also, if I made the coop part 4x4, the run extend out another 4 feet (total floor space for run at 4x8), would that be enough for 3 standards and 3 bantams? They're free ranged when I'm home to supervise, but would have the run when I'm at work. Thanks!! ETA: One more question. If I have food/water in the run, and they're closed in the coop at night, should I put food/water in there too?