Which is the best plywood

Building plywood from wood boy

Wood from poplar, birch and maple is the most important raw material for the production of plywood. In practice, however, all common types of wood can be used for the production of construction plywood. The respective type of wood and the glueing ultimately determine the intended use. While softwoods such as spruce, pine and Elliottis Pine cover typical uses in the construction sector, hardwoods and redwoods are more likely to be found in general purposes. Birch is used in both areas, depending on how it is glued, and is one of the most commonly used types of wood. In construction, these panels are used as large-format formwork panels (with surface coating) for concrete construction.

The glueing is decisive for the area in which the wood will later be used. It is also part of the plate name. Construction plywood has a waterproof and boil-proof glue. Note that this property only applies to the glue. Plywood as a whole is neither waterproof nor boil-proof. Plywood for use under dry (service class 1) or damp (service class 2) conditions are mainly glued with urea-formaldehyde glue. Ureaformaldehyde glued products have slightly higher values, but meet the requirements of all, including the strictest, European EN standards with regard to formaldehyde emissions and levels.

The majority of plywood is imported from other countries and therefore has different descriptions of the qualities. Unfortunately, no uniform quality designation has prevailed so far. The higher quality is designated with A or I, the poorer qualities are designated in descending order to IV or C. If two names are separated by a slash "/", e.g. B. "A / BB", this describes two different qualities of the wood: In this case the front side has quality A, the rear side of the wood only has quality BB. If there is only one name, e.g. B. "B", both sides are produced in quality B.