Abstract: A caster base for a cabinet includes support plates and struts connecting the forward and rearward end of the support plates. The struts are disposed within the cabinet so that the cabinet bottom is integrated with and sandwiched between the struts and the support plates. Casters are mounted at each end of each support plate. The base structural elements thus all reside within the periphery of the cabinet or within the cabinet and are not visible to the outside casual observer. Thus, each base does not protrude from the periphery of the cabinet and can be used for any color of the same size cabinet, it not being necessary to paint the base in a color to match the cabinet. The cabinet bottom is strengthened against deformation during movement over rough surfaces and the struts of the base are configured to be fitted within the cabinet and to accommodate inwardly turned front corner structure.