Blockboard How much is the specifications and classification of a blockboard
Blockboard is commonly known as large core board. People in the decoration industry are no strangers to fine wood boards. It is made of two veneers with glue glued together. Generally used for decoration as a wooden building material. The outermost veneer of blockboard is called a watch board, the inner veneer is called a middle board, the core layer is called a wood core board, and the small wooden strips that make up the wood core board are called core strips. Portrait. So how much money a joinery board? What are the specifications and classification of blockboard? Below, let's take a look.
What is blockboard
Blockboard is commonly known as large core board, wood core board, and wood board. It is made of two pieces of veneer glued and spliced ​​together. The total thickness of the glued veneer on both sides of the joinery board shall not be less than 3mm. The corner defects of all types of joinery boards shall not exceed 5mm in width within the nominal width and 20mm in length. The middle wood board is made of high-quality natural wood board after heat treatment (that is, drying in the drying room), and then processed into wood bars of a certain specification, which are spliced ​​by a panel machine. The two sides of the spliced ​​wood board are covered with two layers of high-quality veneer, and then made by cold and hot press.
Specification of Seiko Plank
The specification of blockboard is 2400X1200X1.7, most of them are 1.7 thick, there are also 1.5, but few people use it. The thickness of commonly used blockboard is 17mm, there are also: 12mm, 15mm, 17mm, 20mm, 15mm and 17mm are more commonly used thickness, different thickness will also lead to different prices.
Blockboard classification
1. According to the core structure
Solid Blockboard: Blockboard made with solid core.
Hollow blockboard: a blockboard made with a checkerboard core.
2. Divided according to the connection status of the board core
Blockboard with glued cores: the core strip is glued and combined into a blockboard made of coreboard with an adhesive.
Non-adhesive puzzle coreboard: the coreboard is made of coreboard without adhesive.
3. According to the surface processing of blockboard
Divided into three categories: single-sided sanding blockboard, double-sided sanding blockboard and non-sanding blockboard.
4. According to the use environment
Blockboard for indoor use: Blockboard for indoor use.
Outdoor blockboard: can be used for outdoor blockboard.
5. According to the number of layers
Three-layer joinery board: a joinery board made of one layer of veneer is pasted on each of the two large surfaces of the board core.
Five-layer blockboard: A blockboard made of two layers of veneer glued to each of the two large surfaces of the core.
Multi-layer joinery board: a joinery board made of two or more layers of veneer glued on two large surfaces of the board core.
6. According to usage
Commonly used blockboard. Blockboard for construction.
Blockboard purchase
Environmental protection, quality, and service are the three indispensable selection criteria when consumers choose plates. Environmental protection issues are even more important to the quality of life of ordinary people. Follow the following principles:
See if it is a regular manufacturer's product. To check the manufacturer's trademark, production address, anti-counterfeiting signs, etc.
Second, see if the amount of formaldehyde released in the product test report is less than or equal to 1.5 mg per liter. Generally, all regular manufacturers produce test reports. The lower the test value of formaldehyde, the better.
Three look at the appearance quality of blockboard. See if the surface of the blockboard is flat, warped, deformed, blistered, or depressed; you can cut the blockboard on site or during construction to observe whether the inner core strip is uniform and tidy, the smaller the gap, the better; The width of the core should not exceed 2.5 times the thickness, otherwise it will be easily deformed; the core strip shall be free from decay, breakage, wormholes, nodules, etc.
Whether the core strips are evenly and neatly arranged, the smaller the gap, the better, whether the core strips are decayed, broken, worm holes, knots, etc. Under normal circumstances, the internal quality of large core boards with good appearance quality is correspondingly better.
Four to see if there is odor. If the blockboard emits a scent of wood, it means less formaldehyde is released; if the smell is pungent, it means that more formaldehyde is released, so don't buy it.
Fifth, add a sentence "must meet national standards" on the purchase contract or invoice, and at the same time it is best to leave a sample in the construction. Once the project is completed, it is found that the indoor environment pollution is caused by the quality problems of the large core board Basis for judging responsibility. Because according to the requirements of national standards, from July 1, 2002, blockboards that do not meet national standards are not allowed to be sold on the market.
How much is a blockboard
Blockboard is actually a building material that is very difficult to understand the price. When buying blockboard, laymen pay attention to the smoothness and weight of the board. They think that the smoother and heavier the better. The insider looks at the drying degree and splicing of the board. The better the dryness, the lighter, smoother and smoother the board. How much does a blockboard of this kind cost? According to the market conditions in most places, a blockboard is at least 80-100 yuan, which is only the most common. Yes, at least 100 yuan. As for the specific amount of money, you better go to the building materials market to understand the market will be better.
Editor's summary: The relevant information about how much a blockboard is, the specifications and classification of blockboard is introduced here for everyone, I hope this article is helpful to everyone. If you still do n’t understand something, you can leave a comment below, we will answer it as soon as possible.
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