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Strength Grading of Timber in the UK and Ireland in 2021

Ridley-Ellis, Dan; Gil-Moreno, David; Harte, Annette M.

Authors

David Gil-Moreno

Annette M. Harte



Abstract

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 approvals based on recent research on spruce, larch and Douglas-fir. It lists the following information along with the primary references: visual grading grades and strength class assignments; grading machines with approved settings for machine control grading; the species, size ranges and strength class combinations covered; and grade determining properties of specific strength classes for the UK and Irish markets. This paper is useful for those grading timber, and those specifying UK and Irish grown timber.

Journal Article Type Article
Acceptance Date Mar 1, 2022
Online Publication Date Mar 19, 2022
Publication Date 2022
Deposit Date Mar 21, 2022
Publicly Available Date Mar 21, 2022
Journal International Wood Products Journal
Print ISSN 2042-6445
Electronic ISSN 2042-6453
Publisher Taylor & Francis
Peer Reviewed Peer Reviewed
Volume 13
Issue 2
Pages 127-136
DOI https://doi.org/10.1080/20426445.2022.2050549
Keywords Grades, classes, machine strength grading, visual strength grading, structural timber, EN14081
Public URL http://researchrepository.napier.ac.uk/Output/2850866

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