A woodworker's workbench isn't a table, it's a work-holding system. It's not something you set things on top of, it's a tool that holds your work. Where a worktable might have a machinist's vise bolted to its top, a woodworker's bench is built to accommodate a number of different workholding mechanisms, such as bench dogs, planing stops, hold fasts, or board jacks, and will usually have one more woodworker's vises integrated into its structure.
“With Hammer in Hand” by Charles F. Hummel (UP Virginia). Resurfacing like Brigadoon, the woodworking shop of the Dominy family was sealed up with the tools still on the benches and saws still sharp. Moved to the Winterthur Museum, the workshop is an open portal into village woodworking in early America. Hummel’s book takes it tool by tool, piece by piece, expanding our view with a true scholar/craftsman’s eye.
While a strict figure for the bench’s weight capacity is not available, a quick browse through their other stand and bench products shows a general weight capacity well above most other brands. As such, while we cannot say for certain that this bench provides the best weight capacity, it is more than likely that it the capacity is similar to the other products in the catalog.