Customers, however, were less accepting of narrower 18 and 19 inch seat widths. (BART???s current seats, at 22 inches, are among the widest in the nation.) ARMRESTSSeats without armrests were preferred by 39.2% of participants, but more than a third, 36.8%, chose seats with armrests.SEAT MATERIALSParticipants were given the opportunity to comment on various types of material, and the word ???clean