Some awkward questions about density
Conference Proceeding
Ridley-Ellis, D., & Cramer, M. (2020)
Some awkward questions about density. In Timber 2020 Conference Proceedings. , (99-110
There are several different concepts of wood density, such as specific gravity, basic density, dry density, and oven dry density. These are often confusing, and sometimes poor...
Strength Grading of Timber in the UK and Ireland in 2021
Journal Article
Ridley-Ellis, D., Gil-Moreno, D., & Harte, A. M. (2022)
Strength Grading of Timber in the UK and Ireland in 2021. International Wood Products Journal, 13(2), 127-136. https://doi.org/10.1080/20426445.2022.2050549
This paper summarises the state of the art for strength grading of construction timber grown in the United Kingdom and the Republic of Ireland. It includes the latest approval...
Guessing the strength of UK timber. Grading explained (a bit)
Presentation / Conference
Ridley-Ellis, D. (2013, November)
Guessing the strength of UK timber. Grading explained (a bit)
Event for Chartered Environmentalists, Foresters and other environmental professions
Rectangular Hollow Sections as Slim Floor edge beams
Conference Proceeding
Ridley-Ellis, D., Davies, G., & Owen, J. S. (1998)
Rectangular Hollow Sections as Slim Floor edge beams. In D. Dubina, I. Vayas, & V. Ungureanu (Eds.), New Technologies and Structures in Civil Engineering – case studies on remarkable constructions, 145-156
Presented at Trends and developments in building, TEMPUS JEP 11297, Iasi (Romania), May 1998
Timber grading seminar for sawmillers.
Presentation / Conference
Ridley-Ellis, D. (2013, March)
Timber grading seminar for sawmillers
This grading seminar will give you a crash course in timber grading, what it is, how it is done and how it is likely to change in future. It aims to demystify timber grading, ...
The timber resource in G. B.-more species for new challenges.
Presentation / Conference
Gil-Moreno, D., Ridley-Ellis, D., & McLean, P. (2016, April)
The timber resource in G. B.-more species for new challenges. Paper presented at Young Researchers’ Forum III: Innovation in Construction Materials, London, UK
Timber in Great Britain is mostly produced from Sitka spruce (Picea sitchensis). Biotic threats have led tree growers to consider the planting of a wider range of species to o...
Introduction to timber grading - The European system of machine strength grading.
Presentation / Conference
Ridley-Ellis, D. (2011, November)
Introduction to timber grading - The European system of machine strength grading
Presentation at the SIRT research update workshop
TG1/201410/37: Derivation of ViSCAN-PLUS grading machine settings for British Spruce
Working Paper
Ridley-Ellis, D. (2014)
TG1/201410/37: Derivation of ViSCAN-PLUS grading machine settings for British Spruce
Confidential report for CEN TC124 WG2 TG1
Grading machine: ViSCAN-PLUS
Manufacturer: MiCROTEC GmbH
Growth area: United Kingdom + Republic of Ireland
Species:
Sitka spruce (Pic...
Equipping ourselves for future forests and timber.
Presentation / Conference
Ridley-Ellis, D. (2018, May)
Equipping ourselves for future forests and timber. Presented at Institute of Chartered Foresters National Conference, Edinburgh
Presentation to the Institute of Chartered Foresters National Conference, "Innovation for change - New drivers for tomorrow’s forestry" Edinburgh 2-3 May 2013
https://www.cha...
BM TRADA Webinar Part 2: Machine Strength Grading
Presentation / Conference
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