A three-layer board consists of three layers of wood arranged crosswise. These are glued together over the surface.
The panels consist of three [...] glued together board layers of coniferous wood, whereby the wood fibres of the neighbouring layers run at an angle of 90° to each other. By choosing the thickness of each layer, the elastomechanical properties can vary greatly even for panels of the same thickness. According to the approval notices issued so far, the multi-layer solid wood panels may be used as load-bearing and stiffening planking for the production of wall, ceiling and roof panels for timber houses in panel construction according to Eurocode 5. In addition, some panels may be used wherever the use of construction veneer plywood is permitted.
Source: Cheret, Peter (ed.): Handbuch und Planungshilfe Baukonstruktion und Bauphysik, DOM publishers, Berlin 2015
Image: dataholz.eu
