Many large airliners are designed so that their seats can be removed to make room for a full load or cargo. These planes have extra-large doors, and they may also have built-in machinery for loading and unloading the cargo.
Transport planes that carry only cargo look much like airliners except that they have no passenger windows. The largest of them, such as the Lockheed C-5A Galaxy and the all-cargo model of the Boeing 747, can carry 91 metric tons (100 short tons) of cargo more than 6,400 kilometres (4,000 miles) non-stop.
Most transport planes carry expensive, lightweight goods, such as electronic equipment and machine parts. These planes also transport goods that must be delivered quickly, including fresh flowers, fruits, and vegetables. The largest transport planes can carry heavier loads, such as building materials and military equipment. Some cargo planes carry goods in large metal boxes called containers. Special equipment easily and quickly lifts the containers on or off these planes.
Please select any of the four corners of this graphic to display the capability of what the Beluga can carry.
From 1971, the Airbus Industry Consortium transported major assemblies of aircraft sections between their various manufacturing and assembly plants using a fleet of four converted Boeing Stratocruisers. These, know as 'Super Guppies', had proved sucessful but were finally retired in Octover 1997.
This is the Super Guppy
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Although, there are other method to transport smaller quantity of materials. Some include UPS, Expresses, and so on. These companies transport small packages from a box of chocolate to a 50' television, but the consquences of delivering by air will cost you more than you think!
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This is a picture of the popular commercial air delivery company, UPS (United Parcel Service).