Particle board is made by compressing wood chips with glue. In flat-pressed particle board, the chips are mainly paralle... Particle board is made by compressing wood chips with glue. In flat-pressed particle board, the chips are mainly parallel to the surface. The chips in the surface layer are thinner than those in the middle layer, so the surface of the particle board is denser and more compact than the middle. In standard particle board, …

Wood fibre board is made of wood fibres, which are connected to each other through the effect of heat and pressure. The... Wood fibre board is made of wood fibres, which are connected to each other through the effect of heat and pressure. The adherence of the fibres to each other is achieved through couching and the wood’s own adhering properties. The fibres on the surface layer of the board are often more ground up than those …

Plywood is made by glueing together thin sheets of wood veneer. The thickness of an individual sheet is 0.2 – 3.2 mm. Th... Plywood is made by glueing together thin sheets of wood veneer. The thickness of an individual sheet is 0.2 – 3.2 mm. The sheets are composed so that the directions of the grain of the superimposed sheets are usually perpendicular to each other. In birch plywood board, there is usually an odd number of sheers …