I use a Rubbermaid kitchen stool (9" tall) sitting on top of the regular STEP with one set of risers (6" more). If I want more height (17") like for PSLegs, I use the end of my bench (like you buy at Walmart for doing bench press, a bench with tall metal supports on one end for holding the barbell). These two options cover everything, as you can adjust the height of the first option with the risers, or use just the little bench alone also.