Causes and solutions for deformation of ash wood boards

2025-11-04

 When quality is the primary consideration when making purchases, solid wood doors and furniture are very popular, especially furniture made from ash wood, which is currently in high demand. However, because ash wood is prone to warping, many people hesitate to buy it. So, what are the solutions for ash wood warping?

The reasons for the deformation of ash trees:

1. Dampness

High moisture content in wood is another major reason for the deformation of ash wood furniture. As the moisture content decreases during use, the internal stress of the wood will gradually become apparent, eventually leading to deformation and cracking.

2. Design Structure

Whether the design structure is reasonable (including the internal structure); whether it is manufactured according to the process requirements in actual production; whether the adhesive is fully cured; whether the transportation and placement meet the requirements; and the environmental conditions of the place of use are also important reasons for the deformation of ash trees.

3. Material issues

Whether it's solid wood doors and furniture, or solid wood composite doors and furniture, they all contain wood components. Like other materials, wood has the characteristic of shrinking and expanding with moisture. Since logs are natural, their degree of deformation is definitely more severe than that of synthetic materials. Moreover, log furniture has a larger surface area and fewer fixed points, making it most prone to deformation and cracking.


Solutions for ash tree deformation:


There are several types of deformation in ash wood furniture. One type is pseudo-deformation, caused by changes in the environment. If the window is open, in the dry and cold winter, the side of the ash wood furniture facing the window is prone to forming a "bowl bend" (bending towards the window); in the humid and hot summer, the ash wood is prone to forming a "bridge bend" (bending towards the interior). However, after a year of seasonal changes, the ash wood will tend to stabilize.

However, some deformation is due to quality issues, such as improper material selection. The wood must meet Beijing's moisture content requirements; too high or too low a moisture content will cause deformation. The boards and core are bonded together under pressure with white glue, ensuring uniform curing strength and preventing movement before the glue has fully set. Shortening the curing time can lead to weak adhesion and deformation. Some unscrupulous manufacturers, upon discovering that the ash wood is bent after manufacturing, may use a straightening device to force the furniture straight. Consumers may receive good furniture, but after about a month, the furniture will gradually return to its bent state, which is what consumers call "deformation." In this case, it's necessary to contact the manufacturer.

Prolonged exposure to moisture can also cause warping. For example, in small bathrooms, if water gets on the furniture, ash wood will inevitably warp. Generally speaking, if a piece of furniture shows signs of warping after one month, and the warping doesn't improve after 2-3 months, it's likely a quality issue, and you can request the manufacturer to address it.

There are many reasons why ash wood warps. After all, it's solid wood, so this is a common problem. It has both advantages and disadvantages, but there's no need to worry. Major brands usually offer after-sales service, so as long as you ask about the relevant details, you don't need to worry too much.