Because the current home decoration involves only the selection and installation of the room door, and the wooden door is the mainstream of the entire home improvement market, we will mainly introduce the selection of wooden doors.
In the market, whether it is solid wood doors or solid wood composite doors, they will show different differences due to the different wood materials and textures used, and their quality and market prices will naturally vary greatly. The lower-grade wooden doors are generally made of wood such as Korean pine, Chinese fir and beech, and the high-grade doors are generally made of walnut and cherry wood.
In the purchase of solid wood doors, we must first check whether the moisture content on the wood door is less than 12%, whether the external processing is fine, and no glitches are found on the touch.
When choosing a solid wood composite door, pay attention to whether the filler in the door leaf is full, whether the wood trimming on the door is connected with the inner frame, and whether the decorative panel of the door is firmly bonded to the frame, there is no warping and cracks, and the board surface is smooth. No scars and wormholes, clear wood grain and beautiful texture.
When selecting the molded door, it is necessary to pay attention to whether the plywood and the frame are firmly connected, whether there are curling edges and cracks, whether the wood and the inner frame of the door edge are firmly connected, and whether the horizontal and vertical keel arrangement of the inner frame is neat. But also pay attention to whether there is a horizontal keel at the hinge of the door. After that, it is to ensure that the board surface is smooth, clean, no thrift, insect eyes, cracks and rot spots, and the board thickness is not less than 3 mm.
No matter which wooden door you choose, there are four things you should remember:
1 Tap on the door with your hand and the sound is dull, indicating that the quality of the door is good, otherwise it is bad;
2 Through the weight to determine the quality of the door, in general, the higher the proportion of solid wood door solid wood, the door will be more heavy, otherwise it is not a good door.
3 The pattern on the surface of the solid wood door is very irregular. If the door surface you choose is smooth and neat and beautiful, then this door is definitely not a real solid wood door.
4 After everything has been confirmed to be correct, it is also necessary to see if there is any national product certification for such products. If not, it is better not to purchase.
2. How to buy the interior security door
Here we introduce the purchase of security doors. Although security gates are generally directly installed by real estate developers, some families still reinstall security doors after entering the home due to security concerns. This means that we are still faced with the purchase of security doors.
The materials used for qualified anti-theft security doors should meet the requirements of national standards. The thickness of the steel security doors used in the door frames of steel security doors shall not be less than 2 mm. The steel plates of the doors shall use steel plates with a thickness between 0.8 mm and 1 mm. Anti-theft locks for security doors must be certified by the national authorized authority, with the functions of anti-drilling, anti-saw, anti-slug, anti-pull, anti-impact, and anti-technical opening. The length of the anti-theft lock bolts has relevant regulations. The length of the A-class anti-theft door should not be less than 14 mm. The B-class should not be less than 20 mm. The housing of the anti-theft lock should generally be made of steel plate or other high-strength material with a thickness of not less than 2 mm. The diameter of the hinge shaft of the door should also be Greater than 12 mm.
After understanding these related standards, we can learn more about the security door selection rules:
When purchasing security doors, first check the product's certificate. Because the anti-theft door has the relevant departments of the inspection certificate, but also the production company where the provincial public security department (bureau) security technology protection department issued the security technology defense product production license, only with these two cards, can explain the product The quality meets the standard technical requirements of the National General Technical Conditions for Anti-theft Security Doors. The security level of security doors is generally divided into three levels: A grade, B grade, and C grade according to the safety performance. Among them, A grade is the lowest, B grade is the second, and C grade is the highest. The general family generally applies Class A security doors.
Second, check the quality of the door. Just mentioned that the steel plate thickness of qualified anti-theft door frames should be more than 2 mm, the thickness of the door must be more than 20 mm, and the weight must be more than 40 kg. When removing the cat's eye or doorbell box, you can see that the steel plate thickness of the door should be more than 1 mm, and there are multiple reinforcing steel bars inside, and the front and rear panels of the door
connect them. Security doors are best equipped with materials such as asbestos, which has a fireproof, heat-insulating, and sound-insulating effect. If you knock on the door with your hand, a deep sound will be heard and the quality of the door lock will be checked. Check whether the door lock is an anti-theft lock that has been tested by the public security department. Is there a steel plate with a thickness of 3 mm or more at the lock to protect it?
Finally, check the production quality of the door. Mainly to check whether there is open welding, unwelded, missing welding and other places, and carefully check whether the door and door frame are closed after the compaction, whether the gap is uniform, whether the opening is flexible, after all this is confirmed, you also need to check the paint of the door Plating is even and firm and smooth.
Only after all these procedures have been done can we ensure that the security doors purchased by us are the best.
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