What size truck for a 3-bedroom house?
Short answer: a 20 ft truck for a lighter 3-bedroom apartment, a 26 ft truck for most 3-bedroom houses with a garage.
Three furnished bedrooms plus common rooms and a garage often reach 1,000–1,400 cu ft. U-Haul rates the 26 ft truck at 1,682 cu ft and the 20 ft at 1,016 cu ft.
Other questions: What size truck do I need for a 2-bedroom move? · Truck or PODS container for a 2-bedroom? · How many boxes do I need to move?