MDF: Medium Density Fiberboard. An engineered wood product formed by breaking down hardwood or softwood residuals into wood fibers, combining it with wax and a resin binder, and forming panels by applying high temperature and pressure.
Particle Board/Chipboard: an engineered wood product manufactured from wood chips, sawmill shavings, or even saw dust, and a synthetic resin or other suitable binder, which is pressed and extruded. Particleboard is a composite material.
OSB: an engineered wood particle board formed by layering strands (flakes) of wood in specific orientations. In appearance, it may have a rough and variegated surface with the individual strips of around 2.5 x 15 cm / 1 x 6 inch, lying unevenly across each other.
Plywood: a manufactured wood panel made from thin sheets of wood veneer.
Polycarbonate: a particular group of thermoplastic polymers that are easily worked, molded, and thermoformed.
Acrylic Glass: a transparent thermoplastic, often used as a lightweight or shatter-resistant alternative to glass.
Extruded Polystyrene Foam: Lightweight, low density foam typically used as insulation for buildings.