Ok so everybody knows those black iron bar stands right? well my question is you know how they have a little bit of storage on the bottom? would the the 55 gal iron stand be able to hold 2 55 gallons? on on top of the stand and one on the bottom?
The steel stands we get up in Ontario at Big Al's are made by Ontario Manufacturing in Hamilton. You can put another tank on the bottom level but there is not too much room above it for opening lids and doing maintenance etc.
Also they seem to be rather lightly made for two tanks (although I'm sure they would hold them). For example, the stands for a 48X18 footprint are made from 1" tube.

