San Francisco International Airport: International Terminal

San Francisco International Airport — or SFO as it is commonly called — offers gateway flights throughout Europe, Asia, and Australia, in addition to serving destinations throughout North America. SFO ranks as one of the 25 busiest airports in the world and is the largest international terminal in North America.

SFO’s geographic location demanded unique design considerations. The terminal is among the largest structures in the world to be built upon base isolators, which offer protection from seismic forces. Friction pendulum isolators, some 267 of them, are placed between the building and its foundation, accommodating movements characteristic of local seismic events. Limited space at the site necessitated that the terminal be constructed above the airport’s main access road, completing SFO’s circle of terminals.

The Enclos team provided custom-designed unitized curtainwalls spanning over 60´ for the vertical exterior end walls of the roof structure. Enclos has worked closely with architect Skidmore, Owings & Merrill on many landmark projects throughout our history.



Facade Area:

sq ft


San Francisco, CA




144 ft


City and County of San Francisco San Francisco Department of Public Health

General Contractor:

Tutor-Saliba Corporation


Skidmore, Owings & Merrill

Facade Consultant:

Curtainwall Design Consulting


Honor Award for Architecture
AIA, 2002

Honor Award
AIA: California, 2001

Award of Excellence: Landmark Structures Category
Structural Engineers Association of California, 2001

Innovative Design and Excellence in Architecture with Steel
American Institute of Steel Construction, 2001

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