nice rack!!! and i looooove your rat homes as well.
i'm wondering, for myself here... if i could make a rack like this but with the longer bins like we use for the snake racks? creating the ventilation using the mesh on the top and hanging the bins above... we really need to figure something out to feed our snakes, lower the mess made by our ratties and decrease the smell as well. i think you've assisted me to find a solution. thanks woman! (and nice rack if you don't mind me saying so again!)