Japanese, Australian firms collaborate on world's tallest timber tower

Japanese and Australian construction firms have started work on a 39-story skyscraper in central Sydney set to be the world's tallest hybrid-timber building.

Tokyo-based Obayashi Corp and Sydney-based Built Pty Ltd are using eco-friendly wood products intending to cut carbon dioxide emissions during construction by 50 percent or more compared to a conventional building project.

The tower will be entirely operated with renewable energy.

The companies plan to complete construction on the 182-meter "Atlassian Central" in 2026, to be used for offices, accommodation, and retail outlets.

A hybrid-timber construction comprised of steel frames and cross-laminated wood, or a wood panel product constructed from glued layers of sawn lumber will be featured on the seventh story and higher.

Reinforced concrete will be used below the seventh floor, including the basement, the two builders said.