I was cleaning the rodents today and figured I'd snap a few pics of my setup. Ive made some changes since originally building the racks due to escapes and this is what works for me:
My setup is under my house which works well becuase you cannot smell the rodents in the house and the temperature stays good for them all year long.
The top is covered in 1/4 inch wire except a small section of 1/2 where I feed them but that is covered with a section of board whenever Im not putting food in it. This keeps the hoppers from escaping from the 1/2 wire.
I also cover the hole in the end of the cement tubs with 1/4 wire to keep them from chewing out
and finally here is the end results
Hope this may help some people