“Objects projecting from walls with their leading edges between 27″ and 80″ above the finished floor (AFF) shall protrude no more than 4″ into walks, halls, corridors, passageways, or aisles. Note that a surface-mounted cabinet installed in such a way that any part of it falls between 27″ and 80″ AAF would not meet ADA requirements.”
Construction of cabinetry on commercial properties must conform to applicable ADA Standards, but that is a matter that the contracting agent of such a project should be fully aware of in order to ensure compliance. Any questions concerning the proper application of ADA Standards can be addressed by referencing the ADA website at http://www.ada.gov/.