Awesome idea to to make a separate play area, though I agree with the other reviewers that a brooder plate would be safer inside a cardboard box.
Great idea for a grow out pen, I might use something like this for my chickens! Looks like a simple and quick build.
What an adorable little coop! I love that it the cost was so low. Would love some more pics, especially of the inside.
Would love some details as to how you put it all together. I will probably have to do something similar with mine soon.
Lots of pics and step by step explanations. Such a cute coop and run, you have very lucky chickens . Great job!