Back in 2018, Elon Musk had a bold idea. He wanted to take the dirt dug up by his The Boring Company while creating tunnels and turn it into interlocking bricks that could be used to build sculptures, structures, and even affordable homes.
Big Promises
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On March 26, 2018, Musk tweeted: “New Boring Company merch coming soon. Lifesize LEGO-like interlocking bricks made from tunneling rock that you can use to create sculptures & buildings.” He added that they would be “rated for California seismic loads, so super strong, but bored in the middle, like an aircraft wing spar, so not heavy.”
A day later, he joked, “And they said I'd never be a rock star…”
Musk kept the momentum going. In May 2018, he confirmed the company would use these bricks for low-cost housing. When asked on Twitter if he wanted to get into the affordable housing industry, Musk replied that The Boring Company was up for the task.
He claimed the bricks were so easy to work with that “two people could build the outer walls of a small house in a day or so.”
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According to media reports, the idea even made its way into The Boring Company’s FAQ section at the time, which stated the company was “investigating technologies that will recycle the earth into useful bricks to be used to build structures.”
Then, on Sept. 13, 2018, Musk tweeted, “First Boring Brick store opening in ~2 months. Only 10 cents a brick! Rated for California seismic loads.” This added to the growing hype around the project at the time.
Some Early Tests
YouTuber Dan Markham, known for the “What’s Inside?” channel, got his hands on two early version bricks, dubbed “V1.” He tested their durability by comparing them to regular bricks in drop tests. The Boring Bricks held up fairly well. Musk had said they could be sold for $0.10 each or given away for free to help build homes.
The idea sparked hope that the bricks could make building cheaper and more sustainable, especially since concrete production is a major source of global emissions.
So, What Happened?
Fast forward to 2025, and the bricks have all but disappeared from the conversation. Despite the early buzz, there’s been no sign of the bricks being mass-produced or used in housing projects. Enthusiasts on Reddit have pointed out potential hurdles like inconsistent soil quality, regulatory issues, and unclear economics.
The Boring Company seems to have shifted its focus to other projects, such as transportation tunnels in Las Vegas and Texas. The brick idea, while innovative, appears to have been shelved.
For now, the bricks made from tunnel dirt are another one of Musk’s ideas that got attention but never quite got off the ground.
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