The size of oven that is best for a home depends on several factors. First, consider the size of your kitchen and how much counter and cabinet space you have available. Smaller ovens such as 24-inch or 30-inch models can fit into smaller kitchens and apartments, but you will have to be careful that your dishes fit into the oven cavity. If your household tends to make large meals often, or if you like to cook several dishes at once, then you may want a larger oven, such as a 36-inch or 48-inch model. Moreover, it might be worth considering a double oven if you're looking for more versatility and don't mind splurging a bit. In the end, it's up to you to decide what size oven best fits your needs.