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For the grid computing network, see DiaGrid (distributed computing network).
Base of 30 St Mary Axe, London, UK
MyZeil, Frankfurt, Germany
CCTV Headquarters, Beijing, China

The diagrid (a portmanteau of diagonal grid) is a framework of diagonally intersecting metal, concrete or wood support beams that is used in the construction of buildings and roofs.[1] It requires less structural steel than a conventional steel frame. Hearst Tower in New York City, designed by Sir Norman Foster, uses 21 percent less steel than a standard design.[2] The diagrid obviates the need for columns and can be used to make large column-free expanses of roofing.[3] Another iconic building designed by Sir Norman Foster, 30 St Mary Axe, known as "The Gherkin", also uses the diagrid system.

British architect Ian Ritchie wrote in 2012:

Buildings utilizing diagrid[edit]

See also[edit]


  1. ^ Ian Volner (5 October 2011). "Dissecting Diagrid". Architect (American Institute of Architects). Archived from the original on 19 November 2011. 
  2. ^ David W. Dunlap (7 October 2004). "Hearst Tower Echoes Trade Center Plan". The New York Times. Retrieved 1 December 2015. 
  3. ^ Terri Meyer Boake (23 January 2014). Diagrid Structures: Systems, Connections, Details. Birkhäuser. pp. 13–. ISBN 978-3-03821-482-3. 
  4. ^ Ian Ritchie (13 March 2012). "Diagonal Structures, Diagrid Structure". e-architect. Retrieved 1 December 2015.