The nest box will be rectangular. It will be framed with 2x4's and ALL sides, top and bottom will be 1/4" hardware cloth. I need help with the dimensions. How deep and how tall should it be for the Giant Toulouse? My geese are only 3 weeks old, and they could use the rectangular box as added security. The box will be inside their coop, (open air coop) which will be 8'x20Lx6'h. I don't know how tall the Giant Dewlap Toulouse get when they reach adult size.Can anyone help? Thank you.