What is a few boards?
Multilayer board, as the name suggests, is a wooden board that consists of a number of wooden sheets glued together. These sheets are connected in layers with very strong adhesives and create a very strong wood board. One of the features that plywood is famous for is its high strength, which is due to the type of placement of glued layers on top of each other. These layers have an angle difference of 90 degrees or even more with the adjacent layers, which reduces the internal expansion and contraction of the wood, and as a result, the resulting product benefits from exceptional strength.
Plywood is one of the most widely used materials for the construction of many wooden structures, and the importance of using this device is increasing day by day due to its unique features. This versatile product is used to make products such as furniture, cabinets, doors, wooden boxes, etc., and these are just a few of the many applications of plywood. In the plywood applications section, we will discuss this issue more so that you can understand more about the importance of using this product. Plywood is also called plywood; So, if you hear this word, don't be surprised and it means the same plywood.
Types of Board of Layers
Plywood
The most popular plywood in the market is plywood. Until a long time ago, plywood was called plywood; Because the first type of plywood was plywood, and for years after that, manufacturers made this wood board with only 3 layers. Plywood is thinner than other types of plywood, but it has high strength. This board is used in making decorative items and for the interior of houses.
Plywood
In the construction of 5-ply board, 5 layers of coating are used, which naturally increases its strength and durability. This plywood is a good option for places where we need more strength. This board is usually used for external environments.
Plywood
There is another type of plywood whose number of layers is 7, 9, 11, 13 and more. The use of this type of plywood is very intense and it is also called multi-purpose board. Adding more layers to the plywood increases its strength surprisingly so that unexpected events such as wind and storms cannot damage the plywood. This type of plywood is used in framing buildings and roofs of houses.
How to make multiple plywood
Certainly, for the production and construction of any wooden device, the first step is to choose the right wood for this device, and plywood is no exception to this rule. For the first step, the woods that have the necessary standards for the production of plywood in terms of technical specifications are carefully identified so that they can be used for this purpose. Trees such as cedar, maple, poplar, pine and mahogany are usually used to make plywood.
The second step is to place the tree trunks in a large steam tank so that these trunks become soft and easier to cut. Now it's time to cut the softened trunks. In order to convert these trunks into wooden sheets, they are first divided into smaller trunks and then placed on a cutting machine to be cut into sheets.
In order for the manufactured plywood to have no defects, the cut sheets are passed through a large scanner to remove possible defects. At this time, the cut sheets are connected to each other with special adhesives and by applying pressure to form the overall structure of the plywood. In the last step, special covers are usually used for more beauty and strength to finish the plywood manufacturing process.
Types of plywood
Soft laminated board: Soft laminated board can be called the most common type of laminated board and it is made from soft trees such as cedar and pine. Contrary to its name, soft plywood has acceptable strength and has many industrial and construction uses. Usually, this type of plywood is used for flooring and roof covering of houses.
Hard plywood: In making hard plywood, wood from trees such as maple, oak, birch, and walnut, which have a higher hardness, is used. In order for this plywood to have good strength, it consists of 3 to 7 layers and is considered a perfect choice for items such as furniture, cabinets, packaging and sports equipment.
Flexible plywood: As the name of this plywood is clear, it is very flexible and is used for curved environments. The main point in this type of plywood is its high strength, which it benefits from along with its extraordinary flexibility.
Molding or construction plywood: One of the most popular types of plywood that is highly regarded in the construction industry is molding board. This plywood is used as the upper part of molding systems for all types of one-sided and two-sided walls and they have a very good performance for keeping sand with glue. It is used as reinforcement board.
Airplane plywood: Another type of plywood is airplane plywood, which can be called the strongest type of plywood. For its construction, powerful trees such as mahogany and birch are used, and it shows high strength against moisture and heat. Air plywood is used in military and aviation industries such as fighter construction.
Marine plywood: One of the applications of plywood is in the marine field, which has led to the addition of marine plywood to the types of plywood. This type of plywood is waterproof and a kind of glue is used in its construction, which can show good resistance against water and humidity. This type of board is used in the construction of ships and boats.
External plywood: External plywood is another type of plywood that has many uses. We are not exaggerating if we say that external plywood is by far the best option for places outside the house where wooden boards are needed. Adhesives have been used in the construction of this multi-layer board, which makes it resistant to various factors such as wind and rain.
Indoor plywood: Many people use wood or wooden boards in the interior of their homes, which gives a beautiful look to the home environment. Internal plywood has great features such as appearance beauty and sound insulation, which distinguishes it from other wood boards. This type of plywood can be used in doors, walls, ceilings, stairs, and cabinets. Today, plywood manufacturers produce their products in such a way that the capabilities of different types of plywood can be found in one product so that it can be used from one The product is used in more cases.
Benefits of plywood
High strength and durability: The name of plywood is associated with high strength and durability, and when the name of plywood is mentioned, all people unconsciously remember this wonderful feature. Plywood owes its strength to its constituent structure and the way layers are placed on top of each other. The strength that exists in plywood, you will not see in any other ordinary wood.
Light and light weight: Another advantage of plywood compared to other types of wood is its light and light weight. It may be surprising for you that a wood with high strength cannot be light, but despite its strength, plywood weighs much less than other types of wood. The light weight of this wood board makes it a suitable option for making furniture.
Economical: Due to the fact that the multi-layer board can cover more space, it will have less waste compared to other woods, and in this sense, it is much more economical than other options. Also, the multilayer boards used in building molding can be used many times without any problems.
Production in large dimensions: One of the important features of plywood is production in large dimensions. The existence of plywood in large dimensions can help you to cover a larger area with minimal unevenness.
Suitable for curved surfaces: As mentioned before, there is a type of plywood that is very suitable for curved surfaces. This plywood, which is a flexible plywood, can be used without any problems in curved places.
No cracking: One of the problems that other types of wood struggle with is cracking during screwing or nailing. This will cause the connection to not be made correctly and the wood will be damaged. This problem does not exist in plywood and due to its layered structure, screws and nails fit well in plywood and cracking does not occur. He mentioned temperature changes, moisture resistance, compatibility with the environment and appearance beauty.
Waterproof Plywood: We have talked about marine plywood which is waterproof, but nowadays other types of plywood are made waterproof so that this feature can be added to the other wonderful properties of plywood. For example, the coated Sousa plywood of Medhat Wood Trading Group, which is used in the construction industry, indoor and outdoor environments, is a waterproof plywood. In the construction of this plywood, waterproof phenol glue is used, which causes There is a strong connection between the layers, and also to prevent water penetration, its edges are covered with a waterproof acrylic material so that water cannot find a way to penetrate this plywood.
