Each level of the buildings provided 40,000 square feet (3,700 m2) of occupied space. There were 95 express and local elevators in the first two World Trade Centers. The office area in the skyscraper was 3,800,000 square feet (350,000 m2).
The total floor area of both towers combined was 447,000 square feet (41,000 m2).
In terms of volume, the twin towers were approximately 2 million cubic feet (60,000 m3), not including the contents of their basements.
This makes them less than 10 percent as large as a typical American football field (which is about 100,000 cubic feet/2,500 m3).
The volume of concrete used to build them was 5.1 million cubic feet (150,000 m3).
This is equivalent to about 18 layers of an average-size city bus. The weight of the concrete was 442 tons per square foot (5,300,000 kg/m2).
The height of the towers was listed as 767 feet (235 m) by some sources, but this appears to be incorrect based on other information provided here. The official height was 1,451 feet (442 m), made up of two sections that joined together at the top.
The first three floors of the 2,800,000 square foot (260,000 m 2) office skyscraper, including the ground level, would have had around 100,000 square feet (9,300 m 2) of retail space. Following One World Trade Center, the tower would have been the second-tallest building on the World Trade Center site. The 2,700,000 square foot (250,000 m 2) investment bank headquarters, which included 33 stories and 408 rooms, was completed in 2014 at a cost of $3 billion.
The twin towers were originally proposed as 3,750 feet (1.20 km), but after 9/11 construction costs increased dramatically. The final height is 1,776 feet (541 m).
World Trade Center Building 1 was designed by Peter Cook and Michael Green and built by Silverstein Properties. It was completed in July 2001. The tower's shape is based on that of a book, with each floor representing one page. The building has 24 floors plus an underground parking garage for 468 cars. Its price tag was estimated at $1 billion at the time of its completion.
Building 2 was designed by Larry Silverstein and Michael Graves and constructed by Tishman Construction Corporation. It opened for business on February 27, 2002. Like Building 1, this structure was also designed to resemble a book, but with seven instead of 24 pages. The building has 49 floors plus an underground parking garage for 425 cars. Its construction cost was estimated at $1.
110 tales The World Trade Center complex's centerpieces were the Twin Towers. 1 WTC (North Tower) and 2 WTC (South Tower) each supplied almost 10 million square feet of office space for about 35,000 individuals and 430 businesses.
In addition to being the tallest buildings in New York, they were also among the largest, with a combined height of 1,451 feet (442 meters). The towers' width was equal to that of an ordinary street. They were built between 1973 and 1976 by the Port Authority of New York and New Jersey as part'to federal government program designed to provide high-quality jobs in the economically depressed region surrounding them.
Their construction was guided by the Freedom Tower Commission, which included representatives from both private industry and the United States government. The commission concluded that structural integrity needed to be given highest priority during the building's design process, and it recommended that the buildings be constructed of reinforced concrete with internal cross-connecting bridges. The Port Authority adopted this plan but added the requirement that the buildings be made entirely of glass, since steel would be used for only their foundations.
The Twin Towers were the first skyscrapers to reach above 100 floors, and they became symbolic representations of America's confidence in its ability to build large structures.