To clarify what I mean about the wheels, I snapped a few more photos. If you force the BlackStone into a spot by pushing it without the wheels rolling and don't want to move it, I think you could do it without the shelves if you had 25 inches (wheels1 pic). If you are going to use the swivel wheels, the wheel turned out and the brake make the width about 27 inches (wheels2 pic) and you will need some more space to to actually roll it.
Edit: I have no idea what happened to the wheels1 pic. If you turn that wheel on the left in, the width is a little over 24 inches