The Difference between Laminated Veneer Lumber and Plywood
Laminated Veneer Lumber (Laminated Veneer Lumber, LVL) is a material made of thick veneers that are laminated along the grain direction, hot pressed and glued, and then sawed.
Laminated Veneer Lumber (swing doors) is a material made of thick veneers that are laminated along the grain direction, hot pressed and glued, and then sawed. Plywood plywood is a piece of wood that is peeled into veneer or made of The wood is sliced ​​into thin wood, and then glued with an adhesive to form a three-layer or multi-layer board-like material, usually with odd-numbered layers of veneers, and glued together with the fiber directions of adjacent layers of veneers perpendicular to each other.
Laminated veneer lumber (LVL)
Manufacturing steps of LVL
The difference between laminated veneer lumber and plywood
The biggest difference between the two lies in the assembly, hot pressing and post-processing of the veneer. From the point of view of production techniques, the production and processing procedures of LVL boards are more complicated, and plywood is relatively simple.
1. Their names are different, the structure of the sheet is also different, and the degree of compression and firmness is different. Plywood is a multi-layer board, which is a board made of multi-layer veneer brush glue.
According to the horizontal and vertical directions of the veneer arrangement, it is divided into LVL and plywood. The ones with the same direction are LVL, and the one arranged horizontally and vertically is the plywood. The structure of the two kinds of boards is different. Of course, there will be differences in performance. Each has its focus and stable toughness. Sex, you can check.
2. An important factor influencing the quality of the board is the glue. The veneer is generally similar, but the glue applied to the veneer is different, the quality is different, and the purpose is different.
LVL Versatility
Laminated veneer lumber is a versatile wood-based product. Together with plywood, lumber or oriented strand board (OSB), LVL can be used for many structural applications. Some of the most popular uses of LVL include I-joists, header, rimboards, truck bed decking, roadway signpost, beam, truss, special applications such as skateboards, and custom-made panels for marine uses.
Advantages
Major advantages of LVL include its dimension, shape, high strength properties and low cost. The size of LVL is not limited by log size, due to its manufacturing method. LVL is one of the strongest wood-based construction materials relative to its density. Because it is manufactured with homogeneous quality that has a minimum number of defects or even distribution of defects, mechanical properties of the final product can be predicted. In general, LVL can be produced in different shapes depending on for what it will be used. It also has the great advantage of using wood resources efficiently.
Disadvantages
Conversely, LVL has several disadvantages as wood composites. Enhancement of strength properties of LVL by densification of veneer during the press is very limited. Although its dimensional stability is better than solid wood, the product may result in some defect, such as warping, if it is not properly stored in the warehouse. Also, LVL requires high capital investment to have relatively low production cost. Therefore, high demand is necessary to have a profitable operation.
