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<p>At present, cross-laminated timber (CLT) used in the United States is made with softwood species. With the expanding market for mass timber products, there is growing interest in understanding the technological, economic, social and environmental viability of CLT manufactured from hardwood lumber. Many states across the Southeastern United States produce hardwood lumber but demand for hardwood items has decreased, leading to hardwood production which is now near to record-low levels. Lower hardwood production impacts forest management and rural communities, thereby creating a need for new opportunities for the&#xa0;use of hardwood resources. As little is known about the industry's perception of viability of hardwood CLT, this study used key informant interviews of 20 wood industry professionals, as well as related studies and scientific literature, to shed light on opportunities and barriers related to the viability of hardwood in CLT. The findings show promise for hardwood CLT in terms of mechanical effectiveness, lumber supply, and aesthetic appeal. Potential barriers include higher raw material cost, limited awareness, liability, decay, longevity and a lack of established lumber grading, technical skills, and supporting infrastructure for this use of hardwood lumber. These barriers will need to be overcome if the inclusion of hardwood in CLT is to occur.</p>

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Stakeholders’ Attitudes and Perceptions Regarding the Viability of Hardwood Cross Laminated Timber (CLT)

  • 期刊论文

  • 发表日期：

    2025年8月5日

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  • Alexander Bremner,
  • Neelam Chandra Poudyal,
  • Prakash Nepal,
  • Consuelo Brandeis,
  • Adam Taylor

摘要

At present, cross-laminated timber (CLT) used in the United States is made with softwood species. With the expanding market for mass timber products, there is growing interest in understanding the technological, economic, social and environmental viability of CLT manufactured from hardwood lumber. Many states across the Southeastern United States produce hardwood lumber but demand for hardwood items has decreased, leading to hardwood production which is now near to record-low levels. Lower hardwood production impacts forest management and rural communities, thereby creating a need for new opportunities for the use of hardwood resources. As little is known about the industry's perception of viability of hardwood CLT, this study used key informant interviews of 20 wood industry professionals, as well as related studies and scientific literature, to shed light on opportunities and barriers related to the viability of hardwood in CLT. The findings show promise for hardwood CLT in terms of mechanical effectiveness, lumber supply, and aesthetic appeal. Potential barriers include higher raw material cost, limited awareness, liability, decay, longevity and a lack of established lumber grading, technical skills, and supporting infrastructure for this use of hardwood lumber. These barriers will need to be overcome if the inclusion of hardwood in CLT is to occur.