Do I Need Cross-Braces for My Rolling Workbench?

Having a solid workbench is crucial for any kind of work. While you might still experience some movement from the wheels, a solid base makes a big difference in usability.

Definitely! Adding racking support is a smart move to prevent any twisting or collapsing. I typically cut a 3-4 inch wide board and place them underneath the top and the shelves. You can see this kind of support in cabinets. If you use a 1/4 inch sheet of plywood at the back, it adds a lot more strength compared to leaving it open.

I built a similar rolling workbench, and I used tenons in the legs that go through the worktop. I even added drawers on top of the shelf, secured to the bottom stretchers, and attached the plywood drawer frame to the legs. I went with pocket holes and other screws wherever possible, and I added large 4" locking wheels. It's great for mobility! I didn't have any racking problems at all and haven't drilled dog holes yet. Good luck with your project; a mobile workbench is really handy!