Standard toilet bowls are 14-14.25 inches wide. Bath Royale’s Premium Elongated and Premium Family Adult/Child Combo seats have “telescoping” lids that completely cover the seat (when closed), so the seat itself is only 13.5 inches wide (seat = 13.5 inches wide, lid = 14 inches wide). If your bowl is wider than 14.25 inches, your best choice would be our Premium Round, Superior Elongated, or MasterSuite seats which have lids that stack evenly on top of the seat. These seats are 14-14.25 inches wide.
NOTE: All dimensions are included in the engineering diagrams listed with each seat.