Door hinge types – Hinges used in contacting a door to a frame while allowing the door to swing open and close. They are usually made of steel, bronze or brass and are available in a variety of designs. Hinges are chosen according to the size and weight of the door, as well as their appearance and operational capacity. Hinges are among the most cost-effective and most used types of hinges. They consist of two metal plates which are connected through a steel pin. A leaf is attached to the door while the other is attached to the frame, and the hinge may be superimposed or recessed. The average door will require three corners from four to five inches in height depending on the size of the door.
Barrel door hinge types are sold as two separate parts. They connect in the middle like a buttock hinge, but can use a steel pin or can simply be welded together. They are designed for use on doors or frames already installed and may simply require additional support or customization. Barrel hinges tend to be smaller than hinges, and are very rarely used. Pivot hinges are mounted on the top and bottom of a door, and are always used in pairs. The lower pivot is attached to the floor while the top device is connected to the head or side frame of the frame. Twists are often used on heavy or oversized doors that may not work properly when hung on hinges. They help to distribute the weight of the door to the floor, making the door longer and turning easier.
The continuous or piano door hinge types consist of two connected metal plates that extend along the entire door. They are used on doors that are subject to heavy abuse or heavy traffic, especially in schools and shopping malls. Because they are at full height, they spread the power and tension along the entire hinge, which means that they last much longer than a butt hinge. Invisible hinges are hidden in a door and frame so they are not visible when the door is closed. They are used in advanced applications for their visual impressions and clean lines.