Our Wallula mill has two containerboard machines. The No. 2 machine produces semi-chemical corrugating medium in grades ranging from 23# to 33#. The No. 3 machine produces 100% virgin linerboard in grades from 31# through 35#.
PCA annually produces over 3.9 million tons of kraft linerboard (the outer layers of a corrugated container) and semi-chemical corrugating medium (the fluted center layer) for PCA’s own converting facilities, as well as for numerous domestic and international customers. All of PCA’s mills are Sustainable Forestry Initiative® (SFI®)-certified.
For more information on the Sustainable Forestry Initiative, please click here.