Home » News » IKD unveils first hardwood Cross Laminated (HCLT) structure in United States at Exhibit Columbus

IKD unveils first hardwood Cross Laminated (HCLT) structure in United States at Exhibit Columbus

Design firm IKD has unveiled the first hardwood Cross Laminated (HCLT) structure in the United States at the 2017 Exhibit Columbus exhibition.

The Conversation Plinth will be situated in the main plaza of Columbus, Indiana, for the duration of the exhibition which runs until the end of November.

The structure has won the Miller Prize, a competition which honours J. Irwin Miller and Xenia S. Miller, two patrons of architecture, art and design by continuing their desire to make Columbus the best community of its size.

Conversation Plinth aims to celebrate the community of Columbus while also paying homage to past revolutionaries of design such as J. Irwin Miller who transformed the small city of 46,000 people.  The structure takes inspiration from the conversation pit in the living room of the Miller House, as well as the plinths that raise the iconic surrounding landmarks such as Cleo Rogers Memorial Library, Eliel Saarinen’s First Christian Church and the Large Arch designed by Henry Moore.

The installation, which is illuminated at night, encircles the Moore statue with large timber discs rising upwards, encouraging viewers to change their perspective on the city.

Although softwood CLT is already in commercial use in the United States, hardwood CLT is not. As pioneers in the use of the material in the Unites States, IKD was awarded a 2017 Wood Innovation grant by the United States Forest Service. The grant was given to develop the material innovation for installation and for product certification with the aim of mass production.

Led by Yugon Kim and Tomomi Itakura, IKD developed a hardwood CLT made from a mix species, low value grade three common American hardwoods for use in the project.

Indiana’s largest cash crop is hardwood but more than 55 per cent of each log processed is of low value. The project proves that the parts of logs harvested from Indiana’s forests, currently being used to produce low value wood products, can be put to better use with Hardwood CLT. The installation shows that by upcycling low-value hardwood sawn logs, such as grade 3 common oak, maple and ash, a high value hardwood CLT can be made and subsequently used in commercial projects.

The project ultimately seeks to revolutionise the timber industry by demonstrating the viability, value and benefits of hardwood CLT for Indiana and the Midwest.

IKD hopes that the project will work as a catalyst to initiate effects such as expanding and diversifying hardwood lumber markets, creating higher forest land value, increasing job growth in rural forestry and manufacturing and improving forest management practices to reduces wildfires and encourage biodiversity.

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