Containerboard

Our containerboard portfolio is engineered for impact and efficiency, with liners and mediums that reduce waste, support branding and deliver consistent strength.

Smurfit Westrock containerboard is produced at mills across the world, giving customers access to a consistent, reliable supply of liners and mediums at global scale. Our portfolio spans virgin and recycled fiber grades, with options engineered for corrugator performance, lightweight right-weighting strategies, high-impact printability, and sustainability goals.

Whether you are optimizing box performance, reducing material weight, or meeting high graphic requirements, our containerboard grades are matched to your application and production requirements. Backed by technical support teams at each mill, we work alongside your operations to ensure consistent runnability and quality across every run. Our containerboard portfolio is part of Smurfit Westrock's broader paper and board offer, which includes a full range of paper and board products for packaging applications worldwide.

With our containerboard portfolio, you can expect:

Optimization: Our containerboard portfolio help optimize material usage without compromising box performance or structural integrity, for strong, reliable and efficient packaging.
Printability: The smooth, consistent surface of our containerboard supports high-impact branding and clear communication—whether in storage, in transit or on the shelf.
Quality: Our containerboard offers reliable quality, so you can count on the performance and appearance of your packaging.
Versatility: Our full range of liners and mediums is designed to meet a variety of corrugation and packaging requirements.
Lightweight options: Our advanced lightweight substrates support right-weighting strategies that help reduce costs and help brands meet sustainability goals.
Performance: The trusted quality and runnability of our containerboard keep your corrugation lines running smoothly and efficiently.
Sustainability: Our portfolio of containerboard solutions helps customers deliver on sustainability goals through the use of paper, a renewable raw material.