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Grade-reducing features in timber products


Kotlarewski, N and Lee, M and Nolan, G, Grade-reducing features in timber products, New Zealand Journal of Forestry, 62, (3) pp. 33-35. ISSN 1174-7986 (2017) [Refereed Article]


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Copyright 2017 New Zealand Institute of Forestry Inc. (NZIF)

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Non-permissible natural and processing features in appearance grade Tasmanian oak hardwood timber products cause significant downgrade in manufactured timber products. This study determined the potential quantity of recoverable timber from packs where natural and processing-induced features were present. Timber product manufacturers can achieve greater volumes of recovery and compliance to standardised timber grades by understanding the type and frequency of nonpermissible natural or processing-induced features. The removal of such features by docking them out, or avoiding the production of non-permissible features in the initial stage of production, are just two options available.

This study identifies the importance for industry processors to investigate timber packs regularly to identify avoidable non-permissible features caused by processing practices, a lack of reflection on production and due diligence. This case study also demonstrates the importance of identifying which timber features are avoidable during the production stage, regardless of the standardised grading method and timber species, to prevent low product recovery.

Item Details

Item Type:Refereed Article
Keywords:timber features, Tasmanian oak, grade reduction, recoverable timber, timber production, timber processing
Research Division:Built Environment and Design
Research Group:Design
Research Field:Industrial and product design
Objective Division:Construction
Objective Group:Construction materials performance and processes
Objective Field:Timber materials
UTAS Author:Kotlarewski, N (Dr Nathan Kotlarewski)
UTAS Author:Lee, M (Mr Michael Lee)
UTAS Author:Nolan, G (Professor Gregory Nolan)
ID Code:122746
Year Published:2017
Deposited By:Architecture and Design
Deposited On:2017-11-27
Last Modified:2018-12-13
Downloads:24 View Download Statistics

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