How to distinguish the grade of solid wood flooring

1. Solid wood floor grade:

There are three grades of excellent grade, first class and qualified grade, AA grade, A grade and B grade are not official grades.

2. Environmental protection level:

The state has not made a special division of the corresponding building materials standards. Generally, we can refer to the environmental protection level of E1, E2, and E1 for direct home use.

3. Wear-resistant grade:

Wear resistance index of the surface of the solid wood floor lacquered board of excellent products;

First class ; Qualified products.

4. Hardness of paint film

The national standard stipulates that the hardness index of the paint film of the high-grade solid wood floor is 2H grade; First class and good product H. (It reflects the strength of the paint film on the surface of the solid wood floor, and is closely related to the material of the solid wood floor and the thickness and material of the paint film itself.) )

5. Paint film adhesion

The national standard stipulates that the adhesion index of the paint film of the high-quality solid wood floor is 0 1 grade; First Class Grade 2; Qualified product grade 3 (reflects the adhesion strength of the paint to the solid wood floor, and the unqualified index also indicates that the paint quality of the floor is poor.) )

6. Moisture content index:

The national standard for solid wood flooring stipulates that the moisture content index is 7%.

Solid wood flooring is naturally occurring, and the hue between the panels is determined by natural properties).

Specific selection steps.

1. Measure the moisture content of the floor.

The national standard stipulates that the moisture content of wood flooring is 8%-13%. In fact, China has a vast territory, and the moisture content requirements in different regions are different. The floor moisture content in the northern part of China is 12%, and the floor moisture content in the southern region should also be controlled within 14%.

Generally, the dealer of wood flooring should have a moisture content tester, if not, it means that the moisture content is not paid attention to. When purchasing, the moisture content of the selected wood flooring in the exhibition hall is first tested, and then the moisture content of the wood floor of the same material and specification is not opened, and if the difference is 2%, it can be considered qualified.

2. Observe the accuracy of the wooden floor.

After the wooden floor is unpacked, about 10 pieces can be taken out and assembled with bare hands, and the tongue and mouth bite, assembly gap, and height difference between adjacent boards can be observed.

3. Check the defects of the substrate.

First, check whether it is the same tree species, whether it is chaotic, and whether the floor has defects such as dead joints, live joints, cracking, decay, and fungus. As for the color difference of the floor, because the wood floor is a natural wood product, there is objectively a phenomenon of color difference and unevenness, which is unavoidable. And laying solid wood flooring to feel the feeling of returning to nature, is in its natural color, pattern, if the pursuit of the floor without color difference, is unreasonable, as long as the paving can be slightly adjusted.

Smell the smell, the wood smell is not mixed with other flavors is the best. There must be no pungent taste. The more natural the color, the better, and the clearer the grain of the wood, the better. The more dense, the better (per unit weight). Wear-resistant, bend-resistant. Look at the paint process on the surface, the degree of scratch resistance.

Solid wood flooring is classified as excellent products: there are no cracks, insect eyes, decay, bending, dead joints and other defects on the board surface. Class B Plates:

The plate with the above defects and the price reduction treatment is only equivalent to the qualified product grade specified in the national standard. Natural color plate: The "UV" paint process used in the processing is transparent, which can truly reflect the original face of the wood.

Color palette: a specific color is injected into the paint process to make the true quality, properties and all defects of the wood difficult to identify. Bell flooring I have used at home and it is not bad.

Hope it helps.

According to the relevant national standard GB T15036 94, the quality of solid wood flooring:

Excellent product: no cracks, insect eyes, decay, bending, dead joints and other defects on the board surface.

B-grade plate: The plate with the above defects on the board surface and the price reduction treatment is only equivalent to the qualified product grade specified in the national standard.

Natural color plate: The "UV" paint process used in the processing is transparent, which can truly reflect the original face of the wood.

Color palette: a specific color is injected into the paint process to make the true quality, properties and all defects of the wood difficult to identify.

The color difference of sports wood flooring is a normal natural phenomenon. For example, the natural wood color is different due to the different growth environment of solid wood species. In addition, even the same log has different colors in different growth parts.

For example, the core material of the log and the outer material of the log, the color of the lower and upper parts of the log are also different.

Although the color difference of sports wood flooring is a normal natural phenomenon. However, many stadium builders, especially stadium operators, do not see it that way. Customers always want sports wood floors to have no color differences, or as little color differences as possible.

The floor moisture content in the northern part of China is 12%, and the floor moisture content in the southern region should also be controlled within 14%. Generally, the dealer of wood flooring should have a moisture content tester, if not, it means that the moisture content is not paid attention to. When purchasing, the moisture content of the selected wood flooring in the exhibition hall is first tested, and then the moisture content of the wood floor of the same material and specification is not opened, and if the difference is 2%, it can be considered qualified.

And laying solid wood flooring to feel the feeling of returning to nature, is in its natural color, pattern, if the pursuit of the floor without color difference, is unreasonable, as long as the paving can be slightly adjusted.