What is the heaviest thing you've ever moved?

I have moved a washer and a dryer, on a dolly, down steep basement stairs by myself.

My mom and my daughter helped me move a super heavy hide-a-bed couch down some stairs, to the basement. I took the end where most of the weight was carried. Geez. We had to tip it on end to position it in front of the basement door, then slowly let it through the doorway and down. They controlled from the top, and I was underneath, pushing underneath, slowly walking it down until we could slide it down the stairs. At one point my mom said, “Why don’t we just drop it!”
I’m UNDER this 300 pound couch, walking down the stairs backward, and I screamed, ”NOOO!!!” Yes, she might have done it if I hadn’t screamed! She just wasn’t very smart some times.

By far the heaviest thing, though, was when we were moving our office from one building to another. Using a dolly I wrestled a
completely full, 5 drawer metal filing cabinet onto a dolly. A big guy who was volunteering stepped up to roll it to the door, but he gave up, said it was too heavy…so I took over. Out the door and to the base of a ramp to haul it up into the bed of a truck.
I had the big, young guy push from the bottom while I hauled from the top. He didn’t think we could do it.
He made a big, huge production of grunting and sweating and moaning about how hard it was, then suddenly, half way up he just let go in defeat, throwing his arms up because it was so hard.
He looked down to rest for a moment, and didn’t notice that I had silently screamed “OH HOLY SHIT!” when all that weight unexpectedly hit me! I instantly locked my body up, locked my knees, locked my arms, locked my shoulders, straining backward with everything I had not to let it fall back down the ramp! It would have been a disaster, not to mention dumbass was still standing at the bottom of the ramp, not looking! I couldn’t even speak because my teeth were gritted so hard.
The kid finally looked up, saw me, startled, and said, “Oh shit!” and jumped to take his load back. After hanging on to it by myself for all those seconds, it suddenly seemed much lighter to me than before! We got it in the truck with no further problem.
He stared at me dumb founded, and never again complained about anything being too hard that day!
This was me around that time. Guess looks can be deceiving.