Originally Posted by Strong Bad
Mount as solid as possible, not on casters.
I have one workbench on casters for woodworking,etc. It has a 2" thick maple top(homemade) and a steel industrial bench system underneath. The casters are swivels on one end & all 4 lockable. My other bench is all steel with vise on one end & saw chain sharpener on the other corner.no casters. You can extend the use of a steel bench to say woodworking by laying a "fastenable" plywood top on steel or use a woodworking bench for bikes , etc., by covering the "nice top" with masonite or plywood. I know that wasn't totally the OP question but my 2 cents.
My table saw,sander,20" planer & bandsaw are all on wheels via casters or the "frame with wheels thing".