Differentiate interior door hinges and exterior door hinges from materials
From the material analysis, most of the interior doors are made of wood. The interior doors can serve as a visual and privacy function between rooms without the need to weather the weather. They rarely contain a lot of noise or temperature protection. In contrast, the function of the hinge is the most basic connection door and door frame. The weight of the load-bearing door does not allow the door to sag. And let the door rotate freely under the lowest frictional resistance.
The exterior door is mainly made of metal. Because of the need to adapt to the inevitable weather conditions. The exterior doors are made to withstand all weather and environmental changes or fire conditions. The corresponding hinges must not only have the various functions to suit the installation environment, but also the ability to withstand heavier metal doors.https://www.degolhardware.com/DH1024-America-Economy-Iron-Customize-Round-Corner-White-Door-Hinges-pd47858985.html