A clear span structure is an assembled framework of aluminum box-beam arches that support the fabric roof and define the shape of the structure in much the same way as a pipe frame-supported tent. The stronger construction of the aluminum frame makes these tents suitable for larger or longer-term applications than other types of structures. The box-beam framework also allows for large areas of unobstructed "clear span" space beneath the fabric roof. The larger structures require heavy equipment because of the size and weight of their parts. Popular in Europe, these tents come in widths ranging from 40-200 feet wide. <ref>http://www.tentexperts.org</ref>


Due to the unique engineering of clear span structures, all inside space is usable. There are no internal poles or columns to interfere with interior plans or to obstruct viewing. These structures or buildings allow you to maximize space for any application, as they offer superior height and width options. Often referred to as "super series" or "mega series" structures, these are actually trademark names of Mahaffey Fabric Structures.

History

The tent is the symbol of ancient Arabia. The Ottomans gave it a new direction making it a royal structure, which was set up for ceremonial occasions and trips. The tent was adopted in Europe initially for the same function, but later was developed into roof style used in large buildings such as botanic gardens, rail stations as well as for camping.

The origin of the tent goes back to ancient times used by the Chinese and nomads of Mongolia. The Roman used it principally as a military shelter accompanying their soldiers as they spread over much of the old world. But it was among the Arabs where the tent became a great symbol and always had an important role in the cultural and social life of the Arabian community.

As said above, while tents came into existence during the 17th century in Asia, Mahaffey Fabric Structures introduced the clear span to North America, particularly the U.S., in 1980. <ref>http://www.fabricstructures.com</ref>