Outputs (157)

A decade review on hardwood composites and their research developments (2025)
Journal Article
Blanchet, P., Cabral, M. R., Silva, J. V. F., García-Jaca, J., Ridley-Ellis, D., McGetrick, P. J., Nocetti, M., & Pommier, R. (2025). A decade review on hardwood composites and their research developments. European Journal of Wood and Wood Products, 83, Article 65. https://doi.org/10.1007/s00107-025-02216-0

Composite materials, such as engineered wood products (EWPs), are favored for their stability, durability, and uniform mechanical properties, making them a potential way to valorize hardwood species. Therefore, this article aims to present a decade r... Read More about A decade review on hardwood composites and their research developments.

Timber properties of species with potential for wider planting in Great Britain (2024)
Report
Price, A., Ridley-Ellis, D., Adams, S., Lehneke, S., Ash, A., & Macdonald, E. (2024). Timber properties of species with potential for wider planting in Great Britain. Forest Research

Diversifying the range of tree species planted in Great Britain is an important goal in adapting to climate change and increasing the resilience of British forests. The wood properties and utilisation potential of less widely planted species are impo... Read More about Timber properties of species with potential for wider planting in Great Britain.

Shear and Torsion (2024)
Report
Plowas, W. (2024). Shear and Torsion. Timber Development UK

Eurocode 5 provides verifications for design for timber beams subjected to shear and to torsion.

It gives verifications for design for shear, for stress components (both parallel and perpendicular to the grain), as well as advice on design for tor... Read More about Shear and Torsion.

Lateral Torsional Buckling (2024)
Report
Plowas, W. (2024). Lateral Torsional Buckling. Timber Development UK

Lateral torsional instability occurs when a beam’s compression face is not fully restrained against lateral movement and its relative slenderness is high. The beam may fail by deflecting sideways and twisting about its longitudinal axis; this failure... Read More about Lateral Torsional Buckling.

Fire Performance of Timber and Timber Products (2024)
Report
Plowas, W. (2024). Fire Performance of Timber and Timber Products. Timber Development UK

Cross Laminated Timber (2024)
Report
Plowas, W. (2024). Cross Laminated Timber. Timber Development UK

Cross Laminated Timber, also known as CLT or X-lam, is an engineered timber product with a minimum of three cross-bonded layers. At least one layer is orthogonally oriented to the two adjacent layers of timber boards

Designing with Cross Laminated Timber (CLT) (2024)
Report
Plowas, W. (2024). Designing with Cross Laminated Timber (CLT). Timber Development UK

The development of CLT brought new possibilities for timber in construction. Instead of framing smaller timber sections to form load-bearing structural systems, timber products using CLT can form walls and roofs of structures in large surface panels.... Read More about Designing with Cross Laminated Timber (CLT).

Global Policies Influencing the Greater Adoption of Timber in Construction (2024)
Report
Hairstans, R., Ridley Ellis, D., Cramer, M., Plowas, W., Hart, S., Rogers, L., Connell-Skinner, K., & Seminara, P. (2024). Global Policies Influencing the Greater Adoption of Timber in Construction. Forest Industries Ireland

This report prepared on behalf of the Timber in Construction Steering Group and Forest Industries Ireland and authored by Built Environment – Smarter Transformation (BE-ST) and Edinburgh Napier University (ENU), emphasises the critical role of increa... Read More about Global Policies Influencing the Greater Adoption of Timber in Construction.

Hardwoods in the United Kingdom Considerations When Looking to Future Planting and Future Value Chains (2024)
Presentation / Conference Contribution
Ridley-Ellis, D., & Cramer, M. (2024, September). Hardwoods in the United Kingdom Considerations When Looking to Future Planting and Future Value Chains. Presented at International Scientific Conference on Hardwood Processing, Coimbra, Portugal

Reasons for increasing the diversity of the tree species providing wood for the value chain include: improving forest resilience to climate change; mitigating the risks of pests and pathogens; and improving other important functions of forests such a... Read More about Hardwoods in the United Kingdom Considerations When Looking to Future Planting and Future Value Chains.

A proposed standardization framework for recovered timber strength grading (2024)
Presentation / Conference Contribution
Llana, D. F., Ridley-Ellis, D., Turk, G., & Íñiguez-González, G. (2024, June). A proposed standardization framework for recovered timber strength grading. Presented at III Congreso Ibero-Latinoamericano MAD de la Madera en la Construcción (CIMAD 24) : Libro de Actas de Resúmenes Extendidos, Madrid

An increasing quantity of wood is recovered from demolitions, presenting opportunities for enhanced value through reusing or recycling in structural uses. Prior to utilizing timber for structural applications, it is essential to subject it to a gradi... Read More about A proposed standardization framework for recovered timber strength grading.

Compression strength perpendicular to grain in hardwoods depending on test method (2024)
Presentation / Conference Contribution
Cramer, M. (2024, May). Compression strength perpendicular to grain in hardwoods depending on test method. Presented at 11th Hardwood Conference, Sopron, Hungary

Compression strength perpendicular to grain is an important timber property that governs the bearing strength of beams and might influence connection design. According to modern standards, the design value for compression strength is determined accor... Read More about Compression strength perpendicular to grain in hardwoods depending on test method.

BM TRADA Webinar Part 2: Machine Strength Grading (2024)
Presentation / Conference Contribution
Ridley-Ellis, D. (2024, April). BM TRADA Webinar Part 2: Machine Strength Grading. Presented at BM TRADA Technical Timber Webinars 2024, Online

Strength grading of solid timber – overcoming some common misconceptions.

Slides covering machine strength grading, stamps, and EN1912 revision

Bamboo scrimber dowel-type joints for engineered wood and bamboo structures (2024)
Presentation / Conference Contribution
Yang, J., D'Amico, B., Zheng, Y., & khokhar, A. (2025, June). Bamboo scrimber dowel-type joints for engineered wood and bamboo structures. Paper presented at World Conference on Timber Engineering (WCTE) 2025, Brisbane, Australia

This research delves into dowel-type joints with bamboo scrimber as an innovative alternative to traditional wooden fasteners. The focus is on their application in connecting timber elements of medium density suitable for engineered wood or bamboo pr... Read More about Bamboo scrimber dowel-type joints for engineered wood and bamboo structures.

Timber (2024)
Book Chapter
Cramer, M., & Tamagnone, G. (2024). Timber. In H. Hartman, & J. Jack Williams (Eds.), Materials: An environmental primer (230-253). RIBA

The Challenge of Strength Grading UK Hardwoods (2023)
Presentation / Conference Contribution
Cramer, M. (2023, November). The Challenge of Strength Grading UK Hardwoods. Presented at ICWSE 2023, Brașov, Romania

Recent research in Europe is bringing a wider range of wood species to the construction market as structural timber and glue laminated products. This option would also open markets for currently underused UK species, foremost hardwoods, but testing e... Read More about The Challenge of Strength Grading UK Hardwoods.

Models to predict the radial variation of stiffness, strength, and density in planted noble fir, Norway spruce, western hemlock, and western red cedar in Great Britain (2023)
Journal Article
Gil-Moreno, D., MClean, J. P., & Ridley-Ellis, D. (2023). Models to predict the radial variation of stiffness, strength, and density in planted noble fir, Norway spruce, western hemlock, and western red cedar in Great Britain. Annals of Forest Science, 80, Article 48. https://doi.org/10.1186/s13595-023-01214-7

Key message: This study compares the measured radial variation in wood stiffness, strength, and density of noble fir, Norway spruce, western hemlock, and western red cedar by developing mixed-effects models for each property using age as the explanat... Read More about Models to predict the radial variation of stiffness, strength, and density in planted noble fir, Norway spruce, western hemlock, and western red cedar in Great Britain.

Loft Conversions with Timber (2023)
Report
Plowas, W. (2023). Loft Conversions with Timber. Timber Development UK

Converting a loft into an active living space needs careful consideration due to modification of structural timbers and increased loads. But utilising timber improves performance thanks to its thermal and acoustic insulation properties.

Loft conve... Read More about Loft Conversions with Timber.

Strength grading options for unusual resources (2023)
Presentation / Conference Contribution
Cramer, M., & Ridley-Ellis, D. (2023, October). Strength grading options for unusual resources. Paper presented at WSE: 19th Annual Meeting of the Northern European Network for Wood Science and Engineering, Oslo, Norway

Considerations for grading species combinations. The example of Douglas fir with larch in Ireland and UK (2023)
Presentation / Conference Contribution
Gil-Moreno, D., Ridley-Ellis, D., & Harte, A. M. (2023, June). Considerations for grading species combinations. The example of Douglas fir with larch in Ireland and UK. Presented at World Conference on Timber Engineering WCTE 2023: Timber for a Livable Future, Oslo, Norway

This paper examines the grading of Douglas fir (Pseudotsuga menziesii) and larch (Larix spp.) as a strength grading species combination for the growth area formed by Ireland and the UK. The two genera produce higher timber quality than Sitka spruce (... Read More about Considerations for grading species combinations. The example of Douglas fir with larch in Ireland and UK.

Non-parametric lower confidence bounds for the fifth percentile - EN 14358 in comparison to a fully non-parametric approach (2023)
Presentation / Conference Contribution
Weidenhiller, A., Ridley-Ellis, D., & Neumüller, A. (2023, June). Non-parametric lower confidence bounds for the fifth percentile - EN 14358 in comparison to a fully non-parametric approach. Presented at World Conference on Timber Engineering WCTE 2023: Timber for a Livable Future, Oslo, Norway

In Europe, fifth percentile values are required for the calculation of characteristic values of strength and density. The European standard EN 14358:2016 defined three ways to calculate a 75% lower confidence bound (LCB) for such fifth percentile val... Read More about Non-parametric lower confidence bounds for the fifth percentile - EN 14358 in comparison to a fully non-parametric approach.