homeowner is tired of having to bend over to load/unload washer/dryer

idea has been tossed around of building an elevated wooden platform out of
2x8 or so lumber and plywood, with an outer "lip" around the platform up
about 4" or so from the bottom of the washer/dryer to keep them on the
platform while running; area under washer/dryer could be used for storage

any known reasons this idea wouldn't work or would not be advisable?