Following is the list of the type of motors and the hp of the garbage disposals depending on your household size and the weekly basis of your cooking:nnIf there are 2-4 people in your house and you cook a couple of times a week, you should probably go for 1hp garbage disposal as it grinds rib bones, raw meat, and soft foods.nIf there are 1-2 people in your household and the cooking is done once a week, then garbage disposal of about 1/2hp is suitable for you, and it helps in grinding soft foods, fruit pits, and leftovers.nIf there are 1-2 people and cooking is not done very often, then 1/3 hp is more than enough.nHowever, if more than four people in your household and cooking are done daily, then the right motor size for you is 1hp.