Spanning approximately 2 kilometers in circumference and rising to 20 meters in height, the timber structure encircles the main exhibition area of Expo 2025 on Yumeshima, a reclaimed island in Osaka Bay.
This massive timber structure, covering a horizontal projected area of approximately 60,000 square meters, is one of the world’s largest wooden constructions in the world. With an inner diameter of 615 meters and an outer diameter of 675 meters, the ring is 30 meters wide and stands 12 meters tall, rising to 20 meters at its highest point. The design combines traditional Japanese wooden construction techniques, such as nuki (penetration) joints, with modern engineering methods.
Functionally, the ring will serve as the main access route for visitors, providing a sheltered space that protects against the elements. The elevated Skywalk of the ring offers views of the entire Expo site, the Seto Inland Sea, and the Osaka cityscape, while the rooftop will be landscaped with greenery, further integrating the structure with its natural surroundings.
The "Grand Ring" stands as a symbol of—unity, innovation, and a deep respect for life in all its forms. This architectural marvel invites visitors from around the world to engage with and contribute to the creation of a sustainable and prosperous future.
