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Containerboard

Containerboard Production
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 helps optimize material usage without compromising box performance or structural integrity, for strong, reliable and efficient packaging. Our range of grades can be matched to specific strength, weight and converting requirements to help improve efficiency across corrugation, packing and supply chain operations.
  • Printability: The smooth, consistent surface of our containerboard supports high-impact branding and clear communication—whether in storage, in transit or on the shelf. Our white top and high-performance liner grades are optimized for both flexographic and direct print applications. 
  • Quality: Our containerboard offers reliable quality, so you can count on the performance and appearance of your packaging. Consistent specifications and dependable mill production help support runnability, strength and visual consistency across each order.
  • Versatility: Our full range of liners and mediums is designed to meet a variety of corrugation and packaging requirements. With multiple grades available, customers can select the right combination of strength, surface characteristics and fiber content for applications ranging from everyday shipping cases to high-graphic retail packaging.
  • Lightweight options: Our advanced lightweight substrates support right-weighting strategies that help reduce costs and help brands meet sustainability goals. These grades are engineered to maintain strength and protection while using less material, helping customers improve packaging efficiency across production, transport and storage.
  • Performance: The trusted quality and runnability of our containerboard keep your corrugation lines running smoothly and efficiently. Designed for dependable converting performance, our grades help support consistent output, fewer disruptions and packaging that performs throughout the supply chain.
  • Sustainability: Our containerboard portfolio supports customers' sustainability goals through the use of paper, a renewable raw material with an established recycling infrastructure. Grades are available with FSC, SFI and/or PEFC certification, and our lightweight options help reduce material use and transportation emissions without compromising box integrity.
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Containerboard technical support

Every Smurfit Westrock containerboard mill operates with on-site quality teams and technical support resources dedicated to keeping your corrugation lines running efficiently. Our technical teams provide support for grade selection, runnability troubleshooting, and packaging performance optimization, working directly with your operations to resolve challenges quickly. From product testing to long-term process improvement, we bring the expertise of a global containerboard producer to your specific production environment.

Containerboard frequently asked questions

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