Research Project

Creating Industry-Accepted Criteria for Measuring Tall Building Floor Area

Project Start: September 2017
Project Completion: September 2018
Principal Investigators: Dario Trabucco & Antony Wood, Council on Tall Buildings and Urban Habitat

CTBUH has received US$90,000 in funding from ArcelorMittal to embark on an important 12-month research project, “Creating Industry-Accepted Criteria for Measuring Tall Building Floor Area.” This research aims to identify the aspects of existing codes and regulations that are internationally accepted and the areas where the code and regulations are contentious or are too broad. This is with the view of creating varying categories of CTBUH Floor Area Criteria, much like the CTBUH Height Criteria, to provide a clear method for accurately and concisely measuring a building’s gross floor area (GFA), net internal area (NIA), net rentable area (NRA), etc. Not only will these new criteria provide a method to accurately measure floor areas, but they will complement existing CTBUH definitions and criteria surrounding tall buildings.  


Funding Partner

Steering Committee Members

About the Funding Partner

With approximately 114 million tonnes (125 million tons) of annual production capacity and 199,000 employees across 60 countries, ArcelorMittal is the world’s leading steel and mining company.


With an industrial presence in 18 countries, ArcelorMittal is a leader in all major global steel markets including automotive, construction, household appliances and packaging, with leading research and development and technology, sizeable captive supplies of raw materials, and outstanding distribution networks.


The company’s core philosophy is to produce safe, sustainable steel. In so doing, ArcelorMittal’s top priority is safety, and its goal is to be the world’s safest steel and mining company. As a company, ArcelorMittal is committed to its promise of “transforming tomorrow.” Guiding the company in this are its values of sustainability, quality, and leadership.



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