dog kennel attachment
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It maybe ok at first, but you would need a thick layer of shavings. Don't you think that over time it would get wet and begin to rot?
I have a mini-coop that i made from pvc tubing and i cut a door and framed it. If fit this to a run, which is open at one end, which i fit next to the mini-coop to mum and chicks can get a bit of exercise during the chicks' first 2 weeks or so.
There's no reason why you should not give it a go and weatherproofing would help extend its life-span.