Plywood is a wood-based panel, which has at the same time a very good mechanical strength, and a light weight. It is a type of manufactured timber made from thin sheets of wood veneer and one of the most widely used wood products.
CARB (California Air Resources Board) is a department within the cabinet-level California Environmental Protection Agency. It was established in 1967, combining the Bureau of Air Sanitation and the Motor Vehicle Pollution Control Board.
The Forest Stewardship Council (FSC) is an international not for-profit, multi-stakeholder organization established in 1993 to promote responsible management of the world’s forests. The Forest Stewardship Council A.C. promotes environmentally appropriate, socially beneficial, and economically viable management of the world's forests.
Plywood consists of sheets (plies) of wood veneer, which are glued together. It is constructed with an odd number of plies, which are cross-bonded. The grain of each layer is perpendicular to the plies above and below it. The outer plies usually have the grain direction going parallel to the long dimension of the panel.
Plywood was invented around 3500 B.C. by the Egyptians, who first thought of sticking several thinner layers of wood together to make one thick layer. They originally did this during a shortage of quality wood, gluing very thin layers of qualitative wood over lesser-quality wood.