Boise Cascade is to close its White City, Oregon plywood mill, ending 47 years of manufacturing at the site.

Production will cease on March 13, according to spokesman Robert Smith, with 110 employees affected.

Plywood from the mill was used in production at Boise’s White City engineered wood products (EWP) plant, which manufactures I-joists and structural beams. This will now be solely supplied by Boise’s larger North Medford plywood mill.

“The current market for wood products and the prolonged downturn in demand for plywood produced at this mill has necessitated this closure announcement,” said Mr Smith.

“At this point in time, we consider this a permanent closure.”

Boise’s White City pine sawmill was closed in March 2008, meaning the company now maintains its EWP plant and a veneer mill in White City.