I took a crappy snowy day here to build a rack. I will be building three more this week and I am considering a DIY thread with pictures.

Its your standard five level large mixing tub rack. The rack is 27.25" x 37" x 66" (without casters...68" with casters). The construction is all 2x3s with 2.5" coarse thread drywall screws. The hardware cloth is your standard half inch stuff secured with the help of my trusty electric power stapler (thank God).

The watering system isn't in yet, so I just stuck some bottles in there for the time being. This one will be getting casters and getting moved into the rat building next week.