There are many types of doors, which can be divided into indoor doors and outdoor doors according to the usage scenarios. The main function of the interior door is to divide the space, protect privacy, sound insulation and heat insulation. The main function of the outdoor door is to prevent theft, fire prevention and security. Due to the differences between interior doors and exterior doors, the hinges used on these two types of doors should also meet different requirements. Obviously, the working environment of the hinge of the outdoor door is more severe, and the requirements for its strength and durability are higher.
The interior door hinges are generally not corroded by harsh environments, so the requirements for interior doors are more about durability, appearance, and safety in use.
Material
For exterior door
exterior door hinges usually use hinges made of 304 stainless steel. 304 stainless steel has high strength and excellent corrosion resistance, and the fire resistance time is usually as high as 2-4 hours.
For Interior door
Interior door hinges can be made of stainless steel, copper, zinc alloy and other materials. Copper and zinc alloys are easy to process, have good fluidity, are easy to be cast, and are low in price. The disadvantage is that the strength is not as good as 304 stainless steel, and the interior doors are usually lighter in weight and have lower fire protection requirements.
Type of doors
For exterior door
Butt hinges, anti-theft hinges, T-shaped hinges, and oil-free hinges are usually used for exterior doors or entrance doors.
The butt hinge has a large load-bearing capacity and is the most widely used.
The anti-theft hinges has security tabs are features on butt hinges that lock the two leaves of the hinge together when the door is closed. These hinges are great for residential use in your home or outside.
The oil-free hinge is characterized by a large load-bearing capacity, no need for lubricating oil, no maintenance, and no danger of pin falling off.
The T shaped hinges are suitable for extra-wide, heavy-duty doors, and most exterior and entry doors exceed the standard width.
For Interior door
Flush hinges, flag hinges, 3D adjustable hidden hingesare usually used for exterior doors or entrance doors.
Flag hinge, Some project can’t install the hinge at the construction site, so the door manufacturer will Put the hinge on the door in advance, another hinge is pre-installed on the door frame. Then the door can be put on door frame with no process required.
Flush hinge, The biggest advantage of flush hinge is easy to install, no need for slotting.
When the hinge closed, the thickness only 3-4mm.
3D concealed hinge is also a hinge that is widely used for interior doors. It has a beautiful appearance, is completely hidden and can be adjusted after installation, and is very popular among users.
I have listed some common differences between interior and exterior door hinges. When you purchase hardware for your own door, you still need to consider according to the current situation. SDH is a professional one-stop procurement service for door hardware Supplier, if you are interested, please contact alfred@euprotek.com
