When our friend Greg Rogers takes his supers off in his beeyard he places them in a drip tray in his truck. When he returns to his honey house he moves the stack of supers with a hand truck. This accomplishes several things, no contamination of the supers from the truck bed, no messes in the truck and no carrying of one or two supers at a time. He wheels the stack into the honey house, wheels them to extractor, extracts, transfers them to another drip tray and wheels them into storage. When supers are needed he wheels the stacks back on his truck to put back on his hives. The opening on the bottom of the tray is 16 7/8". which will accommodate most hand trucks. Save your back...get a Drip Tray.
The description indicates supers fit IN the tray, but in actuality they fit on. I expected them to fit IN the trays which would make them more stable to transport. I was disappointed with that significant difference. Supers can slide off the tray since they dont fit in them.