A rolling butcher block cart should have a surface that you can use as a cutting board that’s at least two by three feet large. It should also have caster rollers that you can easily brake with a foot-controlled lever, and, if possible, storage under the top in the form of drawers or shelves. It’s also a nice touch to have a dowel on the side that you can use to pull your rolling cart or place hand towels or similar accessories on for easy grabbing.