I've connected two racks together and the racks stand up nicely in them.
As far as cleaning, throw them in the dishwasher!
"...Best Buy sucks. They suck it long, and they suck it hard." - JazzyBadger
Bandera, M-BGE, WSM, Gold Kettle, Kenmore Gasser, 36Qt Turkey Fryer, ECB, Dutch Oven