Abstract: A novel caster pad attachable to the bottom of a receptacle and adapted to receive and hold a replaceable caster assembly has a rectangular base with a flange at each of its four edges. A pair of opposite flanges have a hole near each end of the opposite flanges, the holes in one flange being in alignment with the holes in the opposite flange. A U-shaped rod has arms which can enter the holes of one flange and extend out of the holes of the opposite flange so that the plate of a caster assembly can be captured between the base of the caster pad and the arms of the U-shaped rod. Locking devices are applied to the end of one or both arms to lock the U-shaped rod in place with its arms extending through the aligned holes.