Original 9" Stool Dimensions: 13.25"D × 21"W × 9.63"H. Sizing Tips: How to Pick Your Squatty Potty. (1) By Toilet Type: The 9" Squatty Potty Original Toilet Stool is designed for a comfort toilet (16.5–18" from floor to the top of the bowl). If you have a 14–16" standard toilet (measured from the floor to the top of the toilet bowl), then you may want the 9" stool instead. (2) For Advanced Squatters: You may prefer the 9" stool, which raises your feet 9" off the floor. People who are limber and comfortable in a full squat, or have shorter legs, will find the 9" stool easy to use. (3) For Large Households: The 7" Original Toilet Stool is sized for most squatters. If you have people of varied heights using the same bathroom, you might consider the Adjustable 2.0 Stool, which features a 7" stool with a riser you can add to make it a 9" stool. We also offer kid-sized stools called Potty Pets.