Found a wooden china cabinet with no glass in the doors for $15. Took it home, stapled hardware cloth where the glass should be, laid it down and covered the now "floor" with a piece of scrap vinyl flooring I had left over from another project. Then a serious layer of pine shavings and Voila! I now have a wooden "brooder box" that is WAY bigger than the cardboard boxes or plastic totes I WAS using!