All Outputs (8)

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.

A horizon scan of issues affecting UK forest management within 50 years (2023)
Journal Article
Tew, E. R., Ambrose-Oji, B., Beatty, M., Büntgen, U., Butterworth, H., Clover, G., …Sutherland, W. J. (in press). A horizon scan of issues affecting UK forest management within 50 years. Forestry, https://doi.org/10.1093/forestry/cpad047

Forests are in the spotlight: they are expected to play a pivotal role in our response to society’s greatest challenges, such as the climate and biodiversity crises. Yet, the forests themselves, and the sector that manages them, face a range of inter... Read More about A horizon scan of issues affecting UK forest management within 50 years.

Strength grading options for unusual resources (2023)
Presentation / Conference
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

Transforming Timber (2023)
Digital Artefact
Hairstans, R., Plowas, W., Livingstone, A., Connell-Skinner, K., Cramer, M., Ridley-Ellis, D., & Seminara, P. Transforming Timber. [Website content]

The construction materials used since the industrial revolution now dominate the sector. This is one of the leading causes of our current climate crisis. We need alternative solutions. Transforming Timber is collaborative knowledge hub promoting... Read More about Transforming Timber.

Considerations for grading species combinations. General remarks on scenarios and requirements (2023)
Conference Proceeding
Ridley-Ellis, D., Gil-Moreno, D., & Harte, A. M. (2023). Considerations for grading species combinations. General remarks on scenarios and requirements. In A. Q. Nyrud, K. A. Malo, & K. Nore (Eds.), Proceedings from the 13th World Conference on Timber Engineering (2023) (780-786). https://doi.org/10.52202/069179-0107

This paper discusses the situations in which timber species might be combined in commercial combinations, and the considerations relating to strength grading work. It is expected that more species combinations will be developed in the years to come,... Read More about Considerations for grading species combinations. General remarks on scenarios and requirements.

Considerations for grading species combinations. The example of Douglas fir with larch in Ireland and UK (2023)
Conference Proceeding
Gil-Moreno, D., Ridley-Ellis, D., & Harte, A. M. (2023). Considerations for grading species combinations. The example of Douglas fir with larch in Ireland and UK. In A. Q. Nyrud, K. A. Malo, & K. Nore (Eds.), Proceedings from the 13th World Conference on Timber Engineering (2023) (773-779). https://doi.org/10.52202/069179-0106

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)
Conference Proceeding
Weidenhiller, A., Ridley-Ellis, D., & Neumüller, A. (2023). Non-parametric lower confidence bounds for the fifth percentile - EN 14358 in comparison to a fully non-parametric approach. In A. Q. Nyrud, K. A. Malo, & K. Nore (Eds.), Proceedings from the 13th World Conference on Timber Engineering (2023) (735-739). https://doi.org/10.52202/069179-0101

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.

Wood properties and strength grading (2023)
Presentation / Conference
Ridley-Ellis, D. (2023, February). Wood properties and strength grading. Presented at ICF South Scotland CPD event

Slides from a CPD event organised for the Chartered Institute of Foresters South Scotland Regional Group - providing an opportunity for tree professionals to learn more about timber strength grading, and the influence silviculture has on wood propert... Read More about Wood properties and strength grading.