Rubbermaid Commercial Heavy-Duty Utility Cart 2-Shelf, 500-Pound Capacity, 33-1/4″ x 45-1/4″ x 25-7/8″, Beige

We needed a cart with a little wider footprint for stability to support a generator (about 110 pounds) as I loaded it on and off my pickup for camping/travel. This cart is both substantial in strength and stability. I made a rack to increase the height and have a ramp to roll the generator on and off the truck. We store the generator on this cart and it handles well to roll out of the way. Even with the added height and heavy weight on top, this cart is very stable. Larger wheels would have been nice but our usage is probably not typical and we can handle it as is.

http://www.lowcosttoday.com/rubbermaid-commercial-heavy-duty-utility-cart-2-shelf-500-pound-capacity-33-14-x-45-14-x-25-78-beige/