Plywood is one of the most popular building materials, which is a wooden plate glued from a certain number of sheets of a specially processed veneer. Quite often, sheets glue so that the position of the fibers of symmetrical surfaces is at the same angle.
In most cases, the sheets glue properly on both sides regarding the main layer, or the middle. The number of layers of veneer is almost always odd, and equally, often, three layers.
To give the faner of strength and strength, the layers of veneer are installed in such a way that the fibers are located in a perpendicular position. Plywood is considered longitudinal when the fibers of the front coatings have a direction along the long side. If, on the contrary, plywood is considered transverse.
Plywood can be three-layer, five-layer, and multi-layer. Depending on the method of processing the coating, plywood plates can be polished, unsolved, as well as polished on both sides. Make a choice in favor of a particular material taking into account the tasks.
