[Auridan]

Now that you've made me think of it, I can't remember the last time I moved a cardboard box. No, you're more likely to move large awkward bits of metal. Fire extinguishers. Cabinets. Desks. Ram fans. Couches. You will probably have to go up and down ladders with them, through passageways barely wide enough for you or the item (not both), and unless it's something you're throwing away, you may well have to contort yourself into a very odd shape to wedge the thing wherever it's ultimately going.

You know your back better than we do, but I recommend you listen to the cautious impulse that led you to ask your question in the first place.