High-end furniture wood analysis

Common woods used in furniture include birch, cherry, oak, ash, rubberwood, and other miscellaneous woods.

Birch: The trunk is straight, tall, and majestic.

Cherry: A tree of affection, providing delicious cherries while alive and invaluable even after death, its legacy lives on.

Rubber trees: The essence is taken from them, leaving behind little more than waste.

Oak: The trunk is crooked and its many branches make it difficult to extract large pieces.

Low-quality miscellaneous woods, scraps, construction waste, and unknown trees are not the same material type, and their expansion and contraction rates vary with temperature. After being made into furniture, they undergo a cycle of spring, summer, autumn, and winter, causing severe cracking and practically falling apart.

Tips for wood:
Rubberwood: These are old, sick, or dead rubber trees abandoned in Southeast Asia. They are no longer rubber-producing and are therefore discarded. No one wants to sell mature rubber trees for furniture, as the income from a single season's rubber is much more valuable than the tree itself. Years of rubber harvesting have left the trunk hollow and soft, softening the density and making it prone to breakage and aging. Oak: A common wood species widely used and supplied in large quantities in the United States. Its porosity makes it an excellent material for storing wine, and it is often used abroad as wine barrels for storing red wine. Due to its hard, heavy texture, rigidity, and high breaking strength, oak is difficult to completely dehydrate. Furniture made without complete dehydration may begin to warp, shrink, and crack after a year or so. Its high rigidity and breaking strength make it unsuitable for intricately carved European and American furniture, and it is only suitable for modern furniture with straight lines and straight edges.

Southwest Birch: Southwest Birch wood has been designated a precious timber by the government. Its wood is light reddish-brown, with straight grain, a fine, evenly cut structure, medium to high mechanical strength, excellent workability, a smooth planed surface, and excellent paint and adhesive properties. The wood is glossy, with a straight or slightly staggered grain. It shrinks slightly during drying, dries well, and maintains stable properties after drying. It is very wear-resistant. It is not easily impregnated, exhibits strong corrosion resistance, resists warping and cracking, has a low shrinkage ratio, is resilient to deformation, and has beautiful patterns and colors. It is suitable for high-end furniture, wood flooring, and interior decoration. Its excellent resonance properties make it an excellent material for musical instruments. Cherry: Cherry trees are delicious but difficult to cultivate. Few mature trees are available in China, though they are found sporadically in old-growth forests in the United States and Canada. They are very expensive. The wood has a reddish-brown hue, fading into the color of mahogany. The grain is straight, fine, and uniform, with an average density of 630 kg/m³ and a specific gravity of 0.63. Cherry's uniform texture makes it very paintable. It is also very flexible and can be easily bent and shaped after steaming. It also has excellent carving properties, making it particularly suitable for carving. It is used in high-end, premium carved furniture, musical instruments, cellos, violins, pianos, and more. Since the 17th century, cherry has been a favorite material of carpenters and decorators. As the English proverb goes, it means "beloved treasure." Another characteristic of cherry is that the color of cherry furniture darkens over time, and the older it is, the darker the color and the more valuable it becomes. Beware of the current practice of using ash and birch to impersonate cherry wood. These woods don't resemble cherry wood very closely, but can be very convincingly imitated. To identify it, birch has very fine grain, with tiny black lines the size of ants. Also, to verify the authenticity of cherry wood, check the color before painting; real cherry wood is a light yellow-brown.

Miscellaneous woods: scraps and unknown species. Using them in furniture manufacturing can be very harmful. Because they are not made from the same material, the shrinkage ratios and thermal expansion coefficients vary between the woods. After just one spring, summer, autumn, and winter, furniture can become loose and fall apart.

Even within the same species, large and small pieces can differ in size: the difference between large and small pieces can be over 20 times.

Breakdown of large pieces:

Small pieces used by unscrupulous vendors: