All Outputs (3)

Some thresholds for grading British grown spruce to optimised strength classes using longitudinal resonance (2018)
Conference Proceeding
Ridley-Ellis, D., Adams, S., & Lehneke, S. (2018). Some thresholds for grading British grown spruce to optimised strength classes using longitudinal resonance.

The main commercial species in the UK and Ireland is Sitka spruce (Picea sitchensis), which is graded in combination with a small amount of Norway spruce (P. abies). It is typically graded to the European strength class C16, but actually has superior... Read More about Some thresholds for grading British grown spruce to optimised strength classes using longitudinal resonance.

Thinking beyond the usual strength grades – with examples of British spruce and larch (2016)
Conference Proceeding
Ridley-Ellis, D., Adams, S., & Lehneke, S. (2016). Thinking beyond the usual strength grades – with examples of British spruce and larch. In Proceedings of the World Conference on Timber Engineering (WCTE 2016), August 22-25, 2016, Vienna, Austria, Eds.: J. Eberhardsteiner, W. Winter, A. Fadai, M. Pöll, Publisher: Vienna University of Technology

This paper summarises the processes and normative requirements involved in grading of structural timber, and outlines a number of areas in which matters may be improved, so as to make better use of the true properties of the timber resource used. The... Read More about Thinking beyond the usual strength grades – with examples of British spruce and larch.

Within- and between-stand variation in selected properties of Sitka spruce sawn timber in the UK: implications for segregation and grade recovery (2013)
Journal Article
Moore, J. R., Lyon, A. J., Searles, G. J., Lehneke, S. A., & Ridley-Ellis, D. (2013). Within- and between-stand variation in selected properties of Sitka spruce sawn timber in the UK: implications for segregation and grade recovery. Annals of Forest Science, 70, 403-415. https://doi.org/10.1007/s13595-013-0275-y

Context Information on wood properties variation is needed by forest growers and timber processors to best utilise the available forest resource and to guide future management. Aim This study aims to quantify the variation in selected proper... Read More about Within- and between-stand variation in selected properties of Sitka spruce sawn timber in the UK: implications for segregation and grade recovery.