QUESTION: Does the rolling shower chair come any wider than 18"? ANSWER: Yes, we do have rolling shower chair with internal width 22" holding 375 lbs. You can view the product in details on the following page: http://ucanhealth.com/goto.php?page=detail.php&graph1=122-3-SSC-IF For more discussions, options and details about the product, or to order the product, please click here PVC Rolling Shower Chair - Durable and easy to clean medical Grade PVC with the advantage of the latest innovations using lightweight non corrosive materials. PVC Shower Chair with Soft Seat Complete and Individual Footrest Shower Chairs feature aesthetically pleasing ergonomic curved arms that support users without sharp edges. Arms features anti-slip safety handgrip providing comfort and safety using your shower chair. Fast drying and removable PVC back/sling provides sanitary construction ideal for home and institutional use. Threaded stem castors provide additional safety compared to typical friction fit found on other chairs. Internal Width: 18" External Width: 22" Threaded Stem Casters: 3" x 1 1/4" Overall Size: 40" H x 24" W x 18" D Seat Height: 21" Capacity: 300lbs