<p>Truss, in engineering, a structural member usually fabricated from straight pieces of metal or timber to form a series of triangles lying in a single plane. A truss is essentially a triangulated system of straight interconnected structural elements. The most common use of trusses is in buildings, where support to roofs, the floors and internal loading such as services and suspended ceilings, are readily provided. Trusses are a building invention that helps distribute the weight of the roof more evenly to the outer walls. Trusses are necessary for a roof to be properly supported. A truss is triangularly shaped, or comprised of a number of triangles. For more details and information download drawing file.</p>