MetalTech Buildman Welded Steel Heavy Duty Dolly Cart for Moving Sheetrock, Drywall, or Plywood Sheets, 3000 lbs. Load Capacity I-BMD3131YGR - The Home Depot
How to Make Dolly to Handle Heavy doors and Plywood Easily - YouTube
Panel Express, Slab, Glass, Drywall, Door and Plywood Dolly – Diamond Tool Store