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Solid wood doors are crafted from natural or solid wood laminated materials sourced directly from forests. These doors, after being processed, offer excellent properties such as resistance to warping, corrosion, cracking, and insulation. The core of a plywood door usually consists of a lightweight frame, while the surface is often made of materials like plywood, fiberboard, or molded panels, commonly used as interior doors.
The core of a solid wood door is typically made from pine, fir, or similar woods, with an outer layer of density board or willow board. The veneer is created using solid wood and high-temperature pressing, and the edges are sealed with solid wood strips. High-end solid wood doors often use premium fir for the core and feature 45–60 layers of natural wood veneer (more than three times the standard). Fir has low density and is easier to control moisture, resulting in stable finished doors that resist cracking and warping. In addition, solid wood doors provide good thermal insulation, impact resistance, and flame retardancy, with soundproofing performance comparable to that of pure solid wood doors.
**Solid Wood Door Materials**
Solid wood doors are primarily made from eucalyptus, ash, red pine, and mahogany. Korean pine and eucalyptus are suitable for general decoration, while ash, eucalyptus, and others are ideal for medium-grade projects. Red eucalyptus and mahogany are preferred for high-end residential applications. Most wood types have warm, orange-toned colors. Lignin, a key component in wood, absorbs UV light, and the uneven surface helps scatter light, reducing eye strain. Wood is soft yet durable, offers good acoustics, and helps regulate temperature and humidity. Its ease of processing makes it one of the most user-friendly materials for doors. Despite advances in technology and new materials, people still favor solid wood doors for their natural beauty and comfort.
**Plywood Door Materials**
Plywood doors are typically constructed from wood, perforated boards, or high-density boards. The flat parts of the door are covered with decorative panels, while the grooves are finished with veneer or paper. These doors are lightweight and affordable but may suffer from color inconsistencies due to production limitations. Only veneer, paper skin, or nailed wood edges can be added around the door.
Plywood doors are simple, smooth, and meet hygiene standards. However, their quality depends heavily on the glue used, which can degrade when exposed to moisture or sunlight, leading to cracking. They are not recommended for exterior use. If a water-mixed effect is desired, three-ply boards can be used, though their quality is generally poor. Today, they are often replaced by red or red walnut veneers, which are more cost-effective and visually superior. Veneer surfaces are flatter and easier to paint compared to splints.
The door frame of a plywood door is usually surrounded by solid wood strips, enhancing its appearance and preventing deformation. Many decoration companies use this type of door in their budgets. Some prefer to call it "Technology Gate" instead of "Plywood Door," as the latter might give the impression of lower quality. This door is easy to manufacture and uses fewer materials, making it the most affordable option among various door types. Despite its low price, it has the highest sales volume, and many merchants in the market sell it, as every household tends to have at least one of these doors.
This article comes from China Wooden Door Network, China's well-known wooden door industry portal website! (http://) Detailed reference: https://www.chinawoodendoor.com