I thought I would share with you my custom pizza cart I made for my PZ400 pizza oven. The top alone weighs 150 lbs and is 3/8 inch thick 304 stainless. I had it water jetted out and had them water jet two push pull handles to be able to roll it easy!
The cart weighs near 300, and I drilled 4 holes in the top to bolt the unit down. I did away with the legs that came with the machine, and used stainless washers to bring it down a bit. As well I wanted it bolted to the top so it couldn't slide! I pretty much tig welded the whole thing together. It is easy to roll around. Even with the oven bolted down to the heavy cart!