OSB2– Used in load-bearing structures or dry environments. There are many qualities depending on its purpose: The weight of a 18mm thick board with the above measurements is around 35kg, very similar to particleboard. Much like particleboard, the boards are 244cm long and 122 wide, although some stores have bigger ones. It comes in many thicknesses, the most common of which are 9, 12, 15, 18, and 22mm. The next step is to place these flakes in a specific direction on metal plates, which are then subjected to heat and high pressure. The flakes are washed and dried and later impregnated with urea-formaldehyde. First, the bark is removed from the log, which is then reduced to flakes. The manufacturing process is very similar to that of particleboard. This way you obtain a stiffer, more stable board than particleboard. It could be described as a combination of particle board, because it’s also made with wood flakes, and plywood, because those flakes are deposited into layers, which are perpendicular to one another. OSB has gained popularity in recent years due to its low price compared to plywood and its high performance.