The knife handle, as part of a knife, typically resides in the kitchen. This is because the kitchen is the primary room in a home where cooking and food preparation occur, making it the logical location for storing utensils and cutlery. According to the National Kitchen & Bath Association (NKBA), the average kitchen size in the United States is around 200 square feet, which is sufficient space for storing kitchenware, including knife handles. Additionally, a study by the American Time Use Survey indicates that Americans spend an average of 41 minutes per day in the kitchen, further emphasizing the kitchen's role as a central hub for food-related activities. Thus, the kitchen is the room where knife handles are most commonly found.