Original Wooden Door Production Process, Purchasing and Installation Precautions

This article is only for popularizing Wooden Door knowledge, door purchasing precautions, and experience exchange and sharing!
 
The article comprehensively introduces various common sense about Wooden Doors, production process, precautions for purchasing wooden doors, as well as industry traps and routines! The article is relatively long and is divided into: types and differences of wooden doors, commonly used imported wood for original wooden doors, production process of original wooden doors, identification of real and fake original wooden doors, precautions for purchasing original wooden doors, and tricks and traps of wooden door merchants , several parts of the maintenance of original wooden doors.
 
In view of the serious chaos in today's wooden door and furniture industry (cheating, cutting corners, shoddy goods, deception, etc.), today we are taking the great risk of being spurned and reviled by "fake peers" and combine our many years of accumulated industry experience with Sharing it with someone who is destined to do so, I hope it can be of some help to friends who are in need of this!
 
First, let me introduce to you in detail the entire production process of real original wooden doors, and popularize the basic knowledge about wooden doors as well as the tricks and common deception tricks in the wooden door industry, because now there are companies in the market that deceive customers, pass off inferior products, and do not talk about credibility. There are too many unscrupulous businesses!
 
First, the types and structural differences of wooden doors
1. Let’s first get to know various wooden doors.
Wooden doors are divided into: steel-wood doors, low-end solid wood composite doors, mid-to-high-end solid wood composite doors, and pure solid wood doors with tooth joints (the most common ones are rubber wood tooth joint boards. It is important to remind you that most businesses will call this kind of wood It is called "oak" or "white oak", which is actually inferior rubber wood tooth joints from Hainan and Thailand) and original wooden doors. The structural characteristics and differences of various doors are detailed in the figure below:

2. Characteristics and differences of various wooden doors
Original wooden door:
All the materials used in the original wooden door from the door leaf to the door frame and door frame line are the same kind of wood. It is made through scientific processing such as engraving and shaping. The craftsmanship quality of the original wooden door is very high, maintaining the natural and beautiful texture of the wood, being durable and having first-class sound insulation effect. It is rich in humanistic and artistic charm and embodies the noble and classic artistic value. Original wooden doors are the most environmentally friendly and healthy wooden doors. When identifying, you can distinguish it based on the characteristics of natural wood. For example, normal natural wood will have color differences or acne. You can also determine whether the grains on both sides of the wood are consistent (not the same), and whether the wood grain on the front is the same as the wood grain on the cross section. One-to-one correspondence. The grain of the logs is natural, and it can also be judged by the sound. The sound of the logs is crisp and rich. At the same time, the logs are the heaviest among all the wooden doors. The weight of a standard log door leaf will not be less than 80 kilograms. The price of original wooden doors ranges from more than 2,000 yuan to tens of thousands of yuan depending on the wood used.
 
Teeth-jointed solid wood door (also called pure solid wood door):
Most of the materials are industrially made from Thai oak that has been sawed and finger-jointed with waste scraps. Many traces of tooth-shaped splicing are clearly visible on the surface! Without the natural properties of wood, finger-jointed solid wood doors use a lot of glue, so finger-jointed solid wood doors are far less environmentally friendly and healthy than original wooden doors. There is an essential difference between the two, which everyone must pay attention to. Merchants call this kind of original wooden door, which confuses customers. The retail price is generally around 1,400/set.
 
Solid wood composite door:
 
One type of door core board and internal structure are pressed from other density boards or inferior fillers, with only a thin layer of wood veneer on the surface. Another kind of door frame and door core board are made of fir, pine and other soft wood, and then a layer of veneer is attached to the surface. Because all the materials used are solid wood, this kind of door can also be called an all-solid wood door. This kind of door also uses a lot of glue and chemical raw materials. Its environmental protection and health are far inferior to that of solid wood doors and tooth-joined pure solid wood doors, and its lifespan is not as long as pure solid wood and logs. The price of better brand solid wood composite doors ranges from 2,000 yuan to 3,000 yuan, but the brands are often tricky. The price of low-end solid wood composite doors is around 1,200/set.
 
Molded hollow door:
It is made of solid wood as a frame, with decorative boards on both sides glued to the frame and processed by hot pressing. Plywood molded hollow door cores and frames are mostly made of pine, fir and blockboard. They have a single style and a very simple structure. They are also poor in environmental health and are not durable. Especially the door frames are prone to problems. The price of this kind of door ranges from 300 to 500.
 
Steel wooden door:
Steel-wood doors are also hollow doors, with a fir strip frame inside and a layer of chemical materials on the outside. They are the worst among all wooden doors in terms of environmental protection, health and appearance. It was quite popular in the past few years, but now steel and wooden doors have basically been eliminated in cities, and most of them are sold to counties and rural areas. The price of this kind of door is between 500 and 650.
 
Second, the most commonly used wood types for original wooden doors
The following lists and introduces the imported precious woods that are often heard on the market, so that everyone can be aware of them when buying original wooden doors. Solemn reminder: Cheap ones are definitely not original wooden doors, but expensive ones may not necessarily be genuine. The key is whether you can tell the difference! The following are all special materials that can be used to make original wooden doors. One cubic meter can probably make about 3 sets of doors. The yield rate of ordinary wood that is not special grade is much lower. One cubic meter can make about 2 sets of doors.
 
Tree species name Unit price/cubic cost of a set of original wooden doors
American Red Oak 8000 2700
 
Sapele 6800 2300
Begonia wood 5000 1700
 
Red walnut 7000 2300
Black walnut 12000 4000
Burmese teak 15000 5000
 
After having a general understanding of the commonly used woods, I believe that everyone can basically make some basic judgments based on the price when buying raw wooden doors! In particular, the "oak" or "white oak" generally seen or heard on the market are rubber wood from Thailand or Hainan. Rubber wood is a very cheap wood with very poor texture. It can usually only be jointed through teeth. It can be used to make relatively low-end solid wood furniture and toothed solid wood doors. The real white oak refers to American white oak produced in North America. White oak is relatively easy to deform and crack, so it is rarely used to make original wooden doors. Later I will teach you some simple and effective ways to distinguish real and fake wooden doors!
 
Third, the production process of original wooden doors
1. Raw wooden door materials and raw material processing
Here we take the picture of Chunya wood as an example (the picture is an old picture from a few years ago. This year the factory has been expanded and relocated, and the current technology and equipment are very modern). The materials of the original wooden door (door leaf, door frame and door frame line) are all the same material on the outside and inside, with no teeth and no veneer. All materials used in raw wooden doors must go through two important steps: high-temperature cooking and degreasing, and secondary steam drying! In the south, the moisture content of wood must be controlled below 14%, and in the north, the moisture content must be below 9%.
 
2. Processing process of original wooden doors
After the wood is steamed and degreased at high temperature and dried twice, it can be used to make high-end wooden doors.
The woodworking process of the original wooden door is divided into: material selection-cutting-planing-pressing-trimming-paneling-rough grinding-cutting-grooving-tenoning-punching-assembly-determined size-precision forming and cutting Accurate - fine grinding. After the woodworking process is completed, it is time to paint.
The original wooden door painting process is divided into: manual repair of wood defects - cleaning the surface of the wooden door - applying the first primer - sanding - applying putty - spraying the second primer - polishing - applying putty - spraying the third primer - polishing - repairing Color-polishing-topcoating-testing-packaging.
 
Fourth, how to distinguish the authenticity of original wooden doors
There are many ways to identify the authenticity of original wooden doors. Here are two of the simplest and easiest to understand methods (if you have any questions, please contact 15007730303). You must not be fooled by the glamorous appearance. The more composite doors, the more glamorous and beautiful they look!
 
The first method: listen to the sound
Knock the wooden door with your fingers. The sound of the original wooden door is very clear and loud, while the sound of other composite doors is dull! This method also requires a certain amount of experience to accurately judge!
The second method: This is the easiest method to master. Look at the wood texture on the front of the wooden door leaf and the wood texture on the top (or bottom). The wood texture of the real original wooden door must be connected together in a one-to-one correspondence, otherwise it will not work. It's a fake! At the same time, the wood grain shows a natural and irregular distribution. The wood grain on the surface of the composite door is mostly highly perfect and has no defects.
 
Fifth, deception routines and traps commonly used by businesses
The first:
Use non-original wooden doors to pass off as original wooden doors and pass them off as good ones. This situation can be divided into two types: A. Solid wood composite doors with imported veneer on the surface are used to pretend to be original wood doors. The merchants are sure that consumers are not professional enough to distinguish. B. Use oak tooth joint doors to pretend to be original wooden doors. In fact, many merchants themselves do not know what an original wooden door is, let alone a door for consumers. All oak (actually rubberwood) doors are tooth-jointed (except American red oak). The real name of this kind of tooth-jointed wooden door is "pure solid wood door", which is very different from the original wooden door. It is made of rubber wood tooth-jointed boards from Hainan or Thailand. They are all inferior rubber wood and are spliced ​​with a lot of glue. Together, it is extremely easy to deform and mold!
 
The second type:
Impersonating or confusing high-grade wood with low-grade wood. In this case, what the merchant gives you is also an original wooden door, but it also has tricks. It can also be divided into two types: A. Knowing that consumers do not know and cannot distinguish the type of wood, low-grade wood is used as high-grade wood. For example, when you ordered a door, you ordered red cherry wood, and what was delivered to you was African mahogany (merchants often euphemistically call it "Burmese red cherry"), but what you ordered was American white oak. It's Hainan rubber wood, you ordered American red oak, you got northern elm, and so on.
 
The third type:
What is shown and what is sold are not the same thing. Merchants often show a "sample corner" of an original wooden door to their consumer friends. Consumers with insufficient experience often believe it to be true. And he insisted that the model door he showed was the original wooden door. What is delivered to consumers is a mess of substandard goods! You wouldn’t be able to tell the difference anyway!
 
Several anti-fraud methods:
First, you must be very confident before deciding to buy a so-called original wooden door. If you can't tell the type of wooden door yourself, then you must find an industry insider to help you. Here are two simple and practical methods.
1: It is basically impossible to buy so-called big brand original wooden doors with a transaction price below 2,500 yuan. Imported wood costs several thousand yuan per cubic meter. Various production costs plus manufacturers’ profits plus retailers Profit, it is impossible to buy it without 2,500 yuan. The so-called composite doors of big brands are priced at 3,000 yuan!
2: Just look carefully, observe more, knock and listen to the sound. The surface texture of the door side vertical rails of the original wooden door is connected to the bottom texture in a one-to-one correspondence, and the sound is clear and loud. At the same time, the wood grain shows a natural and irregular distribution. The surface wood grain of the composite door is mostly highly perfect and has no defects. .
 
Second, how to buy genuine wooden doors. For friends who like the feeling of logs and advocate environmental protection, health and quality of life, if you want to buy real log doors made of real materials and genuine prices, it is best to find a local manufacturer to order them. The benefits of doing so are obvious. You can go to the factory. Looking at his production process and materials, no amount of promises can compare to seeing it with your own eyes! The most important thing is that you can choose your favorite wood and customize your favorite style!
 
Sixth, things to note when buying raw wooden doors
 
With the continuous improvement of people's living standards and the change of everyone's environmental and health awareness, original wooden doors have become the mainstream of the entire industry.
 
Don’t just look at the brand when buying a wooden door. The brand is the most unreliable thing! It is true that the manufacturers of big brands value credibility, but the dealers below are basically cheating (the trick for merchants to make money is that the stores display the original wooden doors of big brands, and the products delivered to customers are often fraudulent)!

2. Let me teach you a little tip here (take Sapele log door as an example. The receipt for purchasing the log door must have the merchant write: Ensure that all materials used for door leaves and door frames are Sapele logs. No The advantage of the tooth joint is that if the wooden door delivered by the merchant is different from the sample door you saw when you purchased it, you will have a basis to argue with the merchant or even go through legal procedures. Remember!
3. There are two taboos about doors, which are thousands of years old tradition. I hope everyone can try to avoid them when decorating their house.
 
The first is: the toilet door cannot be directly opposite any door.
The second is: no two doors can face each other directly, they must be staggered. Believe it or not, you can call it superstitious, but I think it’s traditional custom!
 
Seventh, precautions for installing original wooden doors
1. Regarding hardware, it is recommended that you purchase good quality 304 stainless steel or pure copper locks and leaves to avoid rust and paint peeling of the hardware over time, which will affect the appearance and use. The focus here is on hinges. Original wooden doors or solid wood doors are hard and heavy, so you must not use double-joint hinges (no matter how much the merchant or the door installer persuades you, you can’t listen to them). Double-down hinges are just easy to use. During installation (because the master does not need to manually dig the hinge grooves during installation), the load-bearing capacity is too poor!
2. Installation skills of original wooden doors. Original wooden doors are valuable. During installation, you must remind the master to take good care of them to avoid damage and damage to the surface of the wooden door. Try to find a master with fine workmanship, patience and responsibility to install! Regarding the issue of temporary additional fees charged by the installation master, after the wooden door is ordered, unless it is caused by your own fault as the owner, you do not need to pay for any additional installation fees. These fees will be borne by the wooden door merchant or manufacturer. , the merchant should calculate all the fees you need to pay and inform you when measuring the door opening and paying the deposit!
3. What is the installation result of the original wooden door? How should the wooden door be installed well?
 
There are three main aspects that require inspection and acceptance:
1. In terms of hardware, the hinge grooves are of appropriate depth and size, the hinges are flat, and the lock can be opened and closed naturally without jamming.
2. As for the wooden door, there are no major scratches or bruises on the paint. The joints between the door cover and door cover line are smooth and have no large gaps (not exceeding 1 mm). The gap between the wooden door and the floor is not more than 8 mm. If there is paint damage caused by construction, it must be repaired by a professional master until it is no longer visible to the naked eye!
3. The final overall effect: You can judge whether the original wooden door is installed well or not with just this trick. Open the wooden door to any position and release the handle (you can test it several times). If the wooden door does not move at all, it means it is installed well; If the wooden door continues to open or close after you let go, it means the installation is not good enough (not vertical). At the same time, the wooden door switch should not make any abnormal noise. If there is any abnormal noise, it means that the hinges or sealing strips are not installed properly!
Eighth, maintenance of original wooden doors
 
Raw wooden doors are favored by more and more consumers because they are made of precious tree species, have exquisite craftsmanship, are beautiful and durable, and have high collection value. However, improper use or lack of attention to maintenance not only affects the beauty of the original wooden door, but also reduces its lifespan. The following will introduce to you the maintenance methods and precautions for original wooden doors.
 
1. Do not hang heavy objects on the door leaf to avoid bumps and scratches from sharp objects.
2. Do not splash solvents containing corrosive ingredients on original wooden doors and door locks. When opening the door lock or turning the door lock handle, do not use excessive force. Hinges, door locks and other frequently moving hardware Accessories must be tightened immediately if they become loose. When the door lock fails to open, you can add an appropriate amount of engine oil and other lubricants to the key hole to lubricate it.
3. In order to maintain the surface gloss and service life of the original wooden door, it can be cleaned and dusted regularly, and the surface can be maintained with a special maintenance solution for wooden decoration products.
4. In spring and winter, good indoor ventilation should be maintained to keep the original wooden doors in a normal temperature and humidity environment to prevent the original wooden doors from deforming due to excessive humidity and temperature differences, and to prevent metal accessories from rusting, edge sealing, and facing materials falling off. When using electric heaters or other heating equipment in winter, keep away from original wooden doors to prevent them from being deformed by heat.
5. When painting the walls, cover the original wooden doors. Avoid peeling and fading of the original wood door veneer material caused by painting, which affects the overall appearance.
6. Wooden doors should not be exposed to strong direct sunlight for a long time. This can cause the paint to discolor, age, or peel.
7. If you have other problems, please consult the manufacturer in time and ask professionals to handle it.
 
Finally, I hope everyone can gain something from reading this blog and buy genuine wooden doors!