A footrest apparatus for a wheelchair and the like has a pair of supporting frame configurations supporting a pair of foot plates to be position in a first position for use and a second position for transportation and/or storage. Each of the supporting frame configurations has a connecting shaft rotatably received in a vertical tube of a front wheel assembly. The vertical tube is affixed to a frame structure of the wheelchair and the like. The connecting shaft and the vertical tube in combination bear and transfer a foot load of the user and therefore a locking device provided between the connecting shaft and the vertical tube for locking the connecting frame configuration in a selected one of the first and second positions, will not bear the foot load, resulting a configuration convenience for conducting an unlock action.