The objective of this Report is to see if it is feasible to build a large size hangar at the Barcelona - El Prat airport to perform maintenance on the larger aircraft that currently exist. Therefore it poses a hypothetical scenario in which the company Qatar Airways is strongly committed to the Barcelona - El Prat airport and decides to turn it into its international hub in Europe and calls for the study to build this hangar. This study, therefore, must seek the best location possible for the hangar, a design and calculation of the structure that compose it and also to make a design of parking spots within the hangar to see the number of aircraft that can work simultaneously.