What does household items include?

My condolences on the loss of your father. Unfortunately, there is not a set legal definition of "household items." It's one of those things that is best defined by the Will that makes the bequest. But, I assume from your question that the Will does not provide a clear definition. In that case, if everyone involved can agree what it means, then that's what it means, within reason. If not everyone can agree what it means, and the Will doesn't define it, then the next step is to try to figure out what reasonably was intended. If I said "household items," I would likely mean things associated with the operation of a residence, which could reasonably include furniture (indoor and outdoor furniture used on a patio or porch attached to the house), kitchen appliances and utensils, linens (towels, sheets, etc.), and perhaps decorative items and other knick-knacks like artwork used in the house, clocks (wall or otherwise), shelves, and pot racks. I might tend to think the term should not include major appliances that are used in the house, like a refrigerator, stove, dishwasher, or laundry machines, and I likely would assume it did NOT include clothing, shoes, jewelry, and other personal-use items. But these are my opinions, it boils down to what the family can agree on. Best wishes to you. I hope you can work it out.