Some thresholds for grading British grown spruce to optimised strength classes using longitudinal resonance
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 typ...
The daily cycle of moisture content expansion and contraction in UK-grown Sitka spruce trees
Presentation / Conference
Adams, S., & Ridley-Ellis, D. (2018, June)
The daily cycle of moisture content expansion and contraction in UK-grown Sitka spruce trees. Paper presented at Timber 2018, London
The diameter of five dominant Sitka spruce (Picea sitchensis) trees at Griffin Forest (near Aberfeldy, Scotland) were monitored at two minute intervals with dendrometers betwe...
Strength grading of timber in the UK in 2018
Presentation / Conference
Ridley-Ellis, D. (2018, June)
Strength grading of timber in the UK in 2018. Presented at Timber 2018
This paper summarises the state-of-the-art of strength grading of UK-grown timber. It lists the following information along with the primary references: visual grading grades ...
TG1/201804/25rev Derivation of MTG grading machine settings for Douglas fir (IE & GB, C classes)
Report
Ridley-Ellis, D., & Gil-Moreno, D. (2018)
TG1/201804/25rev Derivation of MTG grading machine settings for Douglas fir (IE & GB, C classes). WoodProps for Ireland project
Grading machines
MTG 960
mtgBATCH 962 mtgBATCH 966
MTG 920
mtgBATCH 922
mtgBATCH 926
Douglas fir (Pseudotsuga menziesii)
(PSMN)
Permitted timber sizes
Thickness: 33 mm to 84...
Bringing new species to the market place
Presentation / Conference
Ridley-Ellis, D. (2017, May)
Bringing new species to the market place. Presented at EFIATLANTIC AND IEFC ANNUAL MEETING The Role of Alternative Tree Species in the Forests of Atlantic Europe, Edinburgh
Timber grading
Presentation / Conference
Ridley-Ellis, D. (2017, May)
Timber grading. Presented at Tree Breeding and Forest Products - An update on current research, Garwnant
TG1/201703/26rev Derivation of MTG 960 grading machine settings for UK larch
Report
Ridley-Ellis, D. (2017)
TG1/201703/26rev Derivation of MTG 960 grading machine settings for UK larch. CEN TC124 WG2 TG1: Dan Ridley-Ellis
MTG 960
Brookhuis Micro Electronics bv
Institutenweg 15
7521 PH Enschede
The Netherlands
United Kingdom of Great Britain and Northern Ireland
European larch Larix decidua
...
TG1/201703/27rev Derivation of MTG 960 grading machine settings for British Spruce
Report
Ridley-Ellis, D. (2017)
TG1/201703/27rev Derivation of MTG 960 grading machine settings for British Spruce. Dan Ridley-Ellis
MTG 960
Brookhuis Micro Electronics bv
Institutenweg 15
7521 PH Enschede
The Netherlands
United Kingdom of Great Britain and Northern Ireland + Republic of Ireland
Sitka ...
An update on grading timber for structural use
Book
Mansfield-Williams, H. & Ridley-Ellis, D. (2017)
An update on grading timber for structural use. In TRADA Timber Industry Yearbook 2017, 148-155. ISBN 978-1-909594-60-9
The quality of timber varies and, while we have little control over tree growth compared to industrial manufacturing processes, we do know many of the factors that influence w...
Timber properties of noble fir, Norway spruce, western red cedar and western hemlock grown in Great Britain
Report
Gil-Moreno, D., Ridley-Ellis, D. & McLean, P. (2016)
Timber properties of noble fir, Norway spruce, western red cedar and western hemlock grown in Great Britain. Great Britain: Forest Research
The softwood processing sector in Great Britain has been built around the use of a very small number of timber producing species – predominantly Sitka spruce. The recent incre...