QUESTION: PVC Shower Chair w/ Flared Stability Base, 18" Can this fit over a home commode? Thanks Rahul ANSWER: Yes, the chair is designed to fit over regular home toilet. But please make sure that your toilet is less than 18" wide and 21" high. For more discussions, options and details about the product, or to order the product, please click here PVC Shower Chair Flared Stability Base - extra wide deluxe Medical Grade PVC with the advantage of the latest innovations using lightweight non corrosive materials. 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 mesh 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. Flared Base: 4" Wider Base Than Standard 118-3 Internal Width: 18" External Width: 26" Threaded Stem Casters: 3" x 1 1/4" Overall Size: 40" H x 26" W x 18" D Capacity: 300lbs" Seat Height: 21"