It is impossible to answer this question without analyzing your situation. Each home will need a size to fit the following factors:
- How many people live in your home?
- How often will you be using the disposal?
- What kind of food do you prepare, and how much waste does it create?
The most common sizes are:
- 1/3 horsepower
- 1/2 horsepower
- 3/4 horsepower
- 1 horsepower
- 2+ horsepower