The 20 ft containers were available more than 50 years ago. The first containers were used to carry goods in metal boxes that could be filled and unloaded by a crane. Malcolm Mclean, a native of North Carolina, was the first businessman to load a ship with several dozen 35 ft shipping containers.

His journey was Newark, New Jersey, to Houston , Texas. The shipping container consists of a body with bottom, top and side walls with horizontal hollow chords on the upper and lower sides. Each of these chords has a bottom and top opening. In order to allow the drainage of dirt and water, the inner baffles are sloped down.

Generally, the container is made of closed-top dry vessels made of aluminum, plastic, plywood, fiberglass, steel or a mixture of these materials. The hinged rear door allows the load to be stowed and unstowed.

Nowadays, shipping containers are made in many ways. Some are made of 14 gage steel with an external dimension of 20x8.5x8, making them an perfect storage unit on site. Containers are made in a number of sizes, such as 20 , 30 or 40 feet in length, 8 and 8 feet in height and 9 feet in height.

The 20 ft shipment container is designed to store and carry anything. It is ideal for the short or long term choice of storage units for building supplies, commercial use and home use. A 40-ft container does not have pockets. All container walls have u-shaped horizontal beams found midway along the length of the wall and extended downwards.

The walls have a top with one opening and a lot of baffles can be seen along the beam. These baffles stretch out from the side to the opposite side, stopping at intervals from the wall.

Shipping containers made of steel have corrugated walls welded to the top, to the end frames and to the bottom side rails. The 8 corners of the container are made of steel castings used as end frames and welded to 4 corner posts. The roofs may be made of corrugated sheet steel or flat sheet steel.

The interior bows support the roof framework. Plymetal doors are fitted with anti-rack and locking hardware and weatherproof seals. The floor is made of laminated wood, plywood or planking, which is screwed to a crosspiece.

Aluminum containers are made of steel. The end frames and side rails are the components of the steel containers. The inner and outer posts with aluminum sheets are made up of walls riveted to the posts. Plywood lined the inside walls and the roof arches, which are welded to the top rails, bolted or riveted, are made of aluminum.

Fiber-reinforced polymer, FRP, is another material used in the manufacture of shipping containers. In this material, the container is framed in steel with FRP panels on the wall , roof and front wall. There are no roof arches to support the roof structure. However, it is coated in mastic to make them waterproof. For more information please visit http://www.containersolutions.com