They usually range in size 4 to 7 m in length, with smaller or larger sizes existing but being rare in North America. They usually have a garage door-like rear door that rolls up. On some box trucks, the cargo area is accessible from the cab through a small door. Box trucks are usually used by companies that need to haul appliances or furniture. They are also used as moving trucks which can be rented from companies such as U-Haul or Ryder. A Variation on the Box body that is common in the UK is the Luton body that is generally on smaller chassis used for transport of bulky goods.