The best height for a bench is between 42-45cm, or 16.5” to 17.7”, from the floor to the top of the bench in the flat position. This is the height dimension range given by the International Powerlifting Federation (IPF) for legal bench height in competition. This range provides a comfortable height for the vast majority of people to lift from, ensuring they’ll be able to plant their feet comfortably on the floor. Lifters who are very tall or very short may want to seek out somewhat taller or shorter benches to match their builds.