A wheelchair bound person's riding lawnmower mounting apparatus being a rectangularly shaped platform support unit having heightwise adjustable support leg units held within laterally positioned leg compartment components welded to the support unit and atop of which there is to be found a rectangularly shaped mounting platform and connectable to which support unit there are arched support railings as well as a rectangularly shaped mounting ramp unit affixed to which is a downwardly extending ramp plate unit fittable into L-shaped lipping welded to the mounting platform together with the support unit and ramp unit also each having wheel assembly units affixed to the bottom portions of each so as to facilitate moving the support unit and ramp unit, when dissassembled and not in use, to a convenient storage site.