a wheeled stepladder dolly is disclosed wherein the dolly is engageable with both a step of the ladder and the existing cross braces on the support portion of a conventional stepladder to temporarily hold the stepladder in a fixed relationship with the dolly , thus providing a stepladder dolly assembly to be used for transporting heavy boxes of tools or the like . the engagement means are adjustable and configured to be adaptable for a number of brands and varieties of commercially available stepladders .