I use unilifts for moving appliances. One under each side gives instant wheels. And leap frog ¼" plywood in front. A full refrigerator is heavy and the wheels can part the fresh adhesive under the floor I just installed. That, and I don't take chances of scuffing the new flooring. When sliding a heavy stove or old wheel less fridge home into its hole I'll put down a couple of beads of dish soap lined up with the small metal feet. I don't do this in front of the customer though ha ha