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'Terafab Will Be 50 Times The Size Of Pentagon': Elon Musk On Tesla & SpaceX's New Semiconductor Facility
24htopnews | August 7, 2026 7:09 PM CST

Elon Musk said Tesla and SpaceX’s upcoming semiconductor facility, Terafab, will be 50 times the size of the Pentagon. The project, under construction in Texas, is expected to span over 100 million sq ft, making it the world’s largest chip manufacturing site, according to Musk and company statements.

Elon Musk has put a striking new number on the scale of Terafab, the semiconductor megaproject he is building jointly through Tesla and SpaceX, saying the completed facility will be 50 times the size of the Pentagon. The comparison, posted alongside a size chart pitting the Grimes County site against Giga Texas, the Pentagon, Apple Park, and the Mall of America, comes as construction formally gets underway on what the companies are calling the largest chip manufacturing facility on the planet.

Where and how big?

Tesla and SpaceX have confirmed that Terafab will rise in Grimes County, Texas, about an hour northwest of Houston, with the finished site spanning more than 100 million square feet. The project builds directly on earlier groundwork in April, the companies broke ground on a research fab on the North Campus of Giga Texas, described as the precursor to Terafab. Musk has separately called Terafab "the largest and most valuable building on Earth by far."

The investment and the jobs


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