LVL

Looking globally, concrete and steel
Has always been the preferred choice for building structural materials
But in the past decade, wooden structures have become a popular building material again
Wood itself is a renewable resource
Besides being pollution-free, its natural patterns and colors
Has won the favor of many designers
LVL as a new material
It retains the natural texture of wood
Fresh and beautiful appearance, uniform and stable strength
Good durability, no need for drying
Numerous advantages such as large degree of freedom in size
Let’s get to know each other today
What is LVL board

Laminated Veneer Lumber (LVL) is a material made by laminating thick veneers along the grain direction, hot pressing, gluing, and sawing. It can compensate for the shortcomings of artificial fast-growing wood, such as soft materials, low strength, and large size variability, achieving optimal use of inferior wood and large use of small wood, and alleviating the contradiction caused by wood shortage.
Process principle: LVL (laminated veneer lumber) is a material made by laminating thick veneer along the grain direction, hot pressing, bonding, and sawing. It is similar to the production process of plywood, and the preparation process of veneer is almost identical, with the main differences in the assembly, hot pressing, and post treatment processes.

1. Rotary cutting: Cut the logs into different specifications of veneer with a thickness of 1-3 millimeters.

2. Drying and steaming: Various specifications of veneer are cut and dried by rotary cutting, then leveled and dried by a drying machine at around 120 degrees Celsius. The moisture content of the veneer is controlled at 8% -10%.

3. Splicing boards are used to concatenate various dried and leveled boards into a certain length and broadband board through a connecting machine according to the requirements of the production product.

4. Gluing: After drying, leveling, and connecting the veneer, it is coated with phenolic adhesive through a gluing machine.

5. Wood venner assemble and cold pressing: According to the requirements, the glued veneer is laid in a certain number of layers parallel to the wood grain direction, and formed through cold pressing.

Hot pressing: The laminated board formed by cold pressing is hot pressed at a temperature of 160 degrees Celsius for a certain period of time, and the adhesive is heated and cured to form laminated material.

Characteristics of LVL
The production method of unidirectional assembly and parallel hot pressing makes LVL have advantages such as uniform structure, high strength, and good dimensional stability compared to solid wood, which can meet the requirements of various fields of use.
1.High stability strength: veneer laminated timber has a high strength to weight ratio, superior to steel; Uniform structure with high reliability.

2.High economic efficiency: There are no special requirements for raw materials, and different tree species and quality of wood can be used for laminated bonding without removing defects such as knots. Compared with laminated wood, it can increase the yield by more than twice, with a yield of up to 60%~70%.

3. Easy to handle: According to the environmental requirements of the product, special treatments such as anti-corrosion, pest prevention, and fire prevention can be applied to the product.
The veneer impregnated with phenolic resin has good dimensional stability,

By using vacuum pressure and phenolic resin impregnation treatment, a compact LVL with higher hardness, finish strength, and water resistance than ordinary LVL.
4.Standardization can be achieved: During the production process, single boards are classified according to certain standards to produce standard products with different levels of quality

5. Easy to process: It is convenient for mechanical cutting such as sawing, planing, milling, drilling, tenoning, drilling, sanding, etc.

6.Has anti vibration and vibration reduction properties: Single layer laminated wood has extremely strong anti vibration and vibration reduction performance, can resist fatigue damage caused by periodic stress, and can be used as a structural material.

7. Good flame retardancy: Due to the temporal nature of the wood pyrolysis process and the bonding structure of laminated veneer lumber, laminated veneer lumber as a structural material has better fire resistance than steel.

Application LVL Plate
Due to its advantages in specifications, strength and performance, LVL has a very wide range of applications. It can be divided into:

LVL (load-bearing component) for structural use: including load-bearing structural components such as building beams and columns, wooden structures, etc;

Non structural LVL (non load-bearing component): including furniture, stairs, doors, door and window frames, indoor partitions, etc

Compared with solid wood sawn timber, LVL timber has many advantages that ordinary solid wood sawn timber does not have:

1. LVL material can disperse and stagger defects such as scars and cracks in logs, greatly reducing the impact on strength, ensuring stable quality, uniform strength, and low material variability. It is the most ideal structural material to replace solid wood;

2. The size can be adjusted freely and is not affected by the shape and defects of the logs. Our company’s LVL products can reach a maximum length of 8 meters and a final length of 150MM. You can cut and choose the size specifications according to your own material conditions. The utilization rate of raw materials reaches 100%;

3. The processing of LVL is the same as that of wood, which can be sawn, planed, gouged, tenoned, nailed, etc;

4. LVL has properties such as insect resistance, anti-corrosion, fire resistance, and waterproofing, mainly due to corresponding pre-treatment or the use of special adhesives during the production process;

5.LVL has extremely strong seismic and shock absorption performance, as well as the ability to resist fatigue damage caused by periodic stress generation
6.LVL material can disperse and stagger defects such as scars and cracks in logs, greatly reducing the impact on strength, ensuring stable quality, uniform strength, and low material variability. It is the most ideal structural material to replace solid wood;
7. The size can be adjusted freely and is not affected by the shape and defects of the logs. Our company’s LVL products can reach a maximum length of 8 meters and a maximum thickness of 150mm. You can cut and choose the size specifications according to your own material conditions. The utilization rate of raw materials reaches 100%;
8. The processing of LVL is the same as that of wood, which can be sawn, planed, gouged, tenoned, nailed, etc;
9. LVL has properties such as insect resistance, anti-corrosion, fire resistance, and waterproofing, mainly due to corresponding pre-treatment or the use of special adhesives during the production process;
10.LVL has extremely strong seismic and shock absorption performance, as well as the ability to resist fatigue damage caused by periodic stress generation