sq. ft. 50 sq. ft. 100 sq. ft. 150 sq. ft. 200 sq. ft. 300 sq. ft. Personal items, clothes, boxes, skis, toys, small furniture items, business records and rep materials Small amounts of furniture, sofas, chairs, box spring and mattress, business supplies and records. Other small items and boxes. One-bedroom apartment with major appliances, other furniture and supplies. A two-bedroom apartment or house, including appliances, boxes and miscellaneous items or storage for business inventory. A three-bedroom house with major appliances, plus lots of boxes or storage for business files and inventory. Ideal for storage racks. A four-to-five-bedroom house with major appliances and room for boxes. Excellent for storage of business files, equipment, and records.