14-Acre Mass Timber Structure Centerpiece of Expo 2025 Osaka

A circular wooden structure more than 2,200 feet in diameter will be the focal point of the upcoming World’s Fair in Japan.

The Mass Timber world will have a new start in 2025 when a giant wooden structure will encircle the entire Expo 2025 Osaka World’s Fair. Created by Japanese architect Sou Fujimoto, it will cover more than 14 acres and double as a shelter from the elements, as well as a rooftop observation deck.

Organizers of the fair, which opens on April 13 and runs for six months and is being built on an artificial island on Osaka Bay, said the structure is intended to serve as a symbol of “one sky” and be a “connection” between the participating countries. Construction of the structure, which will be built from bamboo and other materials, recently began. Fujimoto has been quoted as saying he designed the wooden ring as a contemporary interpretation of traditional Japanese timber construction, such as that used to construct the Kiyomizu-Dera temple in Kyoto.

Image: Expo 2025 Osaka, Kansai, Japan

Share the Post:

Related News

Show Dates &
Location

August 25-28, 2026

  • Tuesday 8:30 am* - 5:00 pm
  • Wednesday 8:30 am* - 5:00 pm
  • Thursday 8:30 am* - 5:00 pm
  • Friday 8:30 am* - 2:00 pm

* Building A opens 7:30 am each day

Georgia World Congress Center,
285 Andrew Young International
BIvd, Atlanta, GA 30313

showdates-getinfo

Get Info about Attending

Experience the global woodworking industry's must-attend show. Sign up for more information about the show.

showdates-exhibit

Get Info about Exhibiting

If you are in the woodworking industry, your business belongs at IWF. Grow your business at the premier global woodworking trade show.

Find what you're looking for.

Use our advanced search to get immediate answers related to the 2026 show, participating exhibitors, featured products, workshops and news.