Why Do Solid Wood Dining Tables and Chairs Have Expansion Joints?

Have you observed high-end solid wood furniture, especially mahogany furniture, you will find that there is often a gap that is neither wide nor narrow at the side of the furniture panel. Next, let's take a look at the reasons why solid wood dining tables and chairs need expansion joints.

1. In order to prevent the deformation of solid wood dining tables and chairs, expansion joints must be reserved

The longitudinal shrinkage of the wood is not large, and generally there is no need to leave expansion joints at both ends. Some wooden table manufacturers leave seams on all sides, which looks relatively good. There are also some solid wood dining table and chair manufacturers that do not leave expansion joints in furniture, but not leaving it does not mean that there are no expansion joints, because the manufacturer is not absolutely sure about the drying of wood, generally the moisture content of wood is higher than the moisture content of air, so even if there is no expansion during production There will be seams after the furniture is made, and a considerable part of the furniture has seams regardless of the dry and wet seasons, but the size is different.

Expansion joints are necessary in areas with large differences in humidity and dryness throughout the year. In the rainy season, the air humidity is high. Although the wood is artificially dried, the wood will still absorb moisture during the furniture production process, and the volume will increase. Generally, there is no need to leave expansion joints. When the climate is dry in winter, expansion joints will also appear. When making furniture from artificially dried wood, it is generally necessary to leave expansion joints, otherwise, after the arrival of wet summer, the large edge will be swelled and damaged.

2. Expansion joints should be left for solid wood dining tables and chairs to curb the "thermal expansion and contraction" of wood and prolong its life

The expansion joint is to prevent the frame or corner tenon of the furniture from cracking when the wood shrinks or expands due to the influence of the external environment, resulting in the loosening of various parts of the furniture and cannot be used normally. In order to reduce the deformation of wood, wood has a strict drying process before it is made into furniture, and some may take more than a month to bake. In order to control the quality of the standard wooden dining table factory, the moisture content of the products sold in different regions is also different.

The above is the reason why the solid wood dining table and chairs should have expansion joints. We hope it will be helpful to everyone. If it is solid wood furniture, then there are generally no expansion joints on the surface of the desktop and board parts. If there is, it may be due to the following two reasons: one is that the desktop board is a frame structure, and the other is that there are other special processes or materials on the desktop. Among them, the frame structure is the most commonly used combination of plank and wood furniture, and attention should be paid to distinguish it. Finally, we would like to remind everyone that expansion joints are the "self-protection system" of solid wood dining table and chair furniture. There is no need to worry when the size is uneven, and most of them will return to their original appearance after seasonal changes.

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