Amount of lamellae derived from low-quality oak logs
Dénes Horváth & Sándor Fehér
Correspondence
Correspondence: Horváth Dénes
Postal address: Soproni Egyetem; 9400 Sopron, Bajcsy-Zsilinszky út 4.
e-mail: hdenes68[at]t-online.hu
Abstract
The subject of this paper is the quantitative analysis of defect-free lamellae derived from low-quality logs. The noble oak logs included in the study were used to produce boards with a thickness of 30 mm, of which 50 pieces were analysed, representing the typical material quality that can be obtained from low-quality sawlogs. Based on image analysis, 18% of the surface area of these timber could be classified as class 1 lamellae. The remainder of the board surface area either contained some wood defects or the defect-free part was too small for lamella production. While the length of the majority of the lamellae was between 0.25 and 0.50 m, the width of the majority of the lamellae was in the middle category (50 mm). However, there has been little demand for these high quality lamellae on the market for decades or they would be used for parquet production at very low prices. It would be advisable to find alternative uses for this significant quantity of material in the future, such as glued-laminated structural timber. This would increase the amount of wood used in industrial production and would allow the production of high added value products from a currently unused assortment.
Keywords: board, timber, lamellae, oak, visual classification
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Cite this article as:
Horváth, D. & Fehér, S. (2023): Amount of lamellae derived from low-quality oak logs. Bulletin of Forestry Science, 13(2): 123-129. (in Hungarian) DOI: 10.17164/EK.2023.07
