Here’s a grill cart I designed and built to complement my Weber Summit Charcoal. You can find the sketchup file for it at the bottom.
Use at your own discretion and risk. I make no guarantees on this, it is just how I mostly made mine. Some things were edited along the way from this file. Common sense as you progress with your build will dictate a lot. For instance, the wheels are different in reality to what I had planned.