Qatar has officially begun building the world’s largest 3D-printed structure. This massive project aims to build two public schools in Doha using giant 3D printers, each larger than a Boeing 737 hangar.
The project is managed by UCC Holding, together with Qatar’s Public Works Authority (Ashghal). They are using two COBOD BODXL 3D printers, specially designed and built by Danish company COBOD. Each printer measures an impressive 50 meters long, 30 meters wide, and 15 meters high.
These massive printers are powerful enough to build two entire schools, each covering 20,000 square meters. Combined, the buildings will reach a total size of 40,000 square meters. This makes them 40 times bigger than any other 3D-printed building in the world.
Preparation for this project began months ago. Engineers, architects, and construction experts conducted over 100 test prints at a special facility in Doha. The team also received detailed training from COBOD engineers in May 2025. The training covered everything from how to operate the massive printers to controlling the quality of the printed structures in real-time.
One team member explained the significance of the project, saying, “We wanted to ensure everything was perfect before starting the main construction. This preparation will guarantee the success and safety of the buildings.”
Due to Qatar’s extremely hot climate, the construction team decided to do most of the printing at night. By printing after sunset, they can maintain ideal temperatures for the concrete mixture. This approach helps improve the quality and strength of each layer while also reducing noise and dust in the area.
“Working at night not only helps with temperature control but also makes the construction safer and more comfortable for our workers,” said a project supervisor.
One of the biggest benefits of using 3D printing for construction is sustainability. 3D printing uses exactly the amount of material needed, greatly reducing waste. This technique also lowers carbon emissions and decreases transportation needs since most materials are prepared on-site.
Because 3D printing is so precise, the building process is much faster. As a result, the schools are expected to be completed much quicker than traditional methods would allow, with both schools ready for use by the end of 2025.
A senior engineer working on the project said, “This technology completely changes the way we build. It is faster, cleaner, and better for the environment.”
The design of the schools is unique, inspired by Qatar’s beautiful desert landscapes. The buildings will have curved walls resembling sand dunes, something that is extremely difficult to achieve using traditional construction methods. The flexibility of 3D printing makes it easy to create these unusual shapes.
“Our goal was to design buildings that reflect the natural beauty of Qatar. The smooth curves and flowing shapes are made possible thanks to 3D printing technology,” explained an architect involved in the project.
These two 3D-printed schools are part of Qatar’s plan to build a total of 14 new public schools across the country. Although only two will be built using 3D printing, the project is an important test to show how effective and practical this technology can be for large-scale public projects.
Each school will be a two-story building placed on a 100-by-100-meter plot. They will provide modern, comfortable learning environments for students and teachers alike.
This project also brings significant benefits to Qatar’s local workforce. Workers involved in the project are gaining valuable skills in advanced construction technology, boosting Qatar’s expertise in digital construction.
“This is not just about building schools, it’s about training our local talent and preparing our country for the future,” said a representative from UCC Holding.
“This project shows the world what is possible with 3D printing. It opens new possibilities not just for Qatar, but for the entire global construction industry,” concluded the project’s chief engineer.
