The purpose of using a UL-rated door hinge is to ensure that when the door actually swings open and shuts the door and hinges are in fact opening and closing with full, and proper security. There are four different types of doors, including roller, sectional, casement and Bahama.

In most homes, the double washer door hinge is a part of the door that most people will never even notice or use. It's main use is for keeping the seal between the door frame and the door jambs from shifting, which allows water to enter your home through an unsealed door.

Doors are often one of the weakest points in any home. In fact many times when you are trying to enter or leave a home, you have to try and avoid hitting this particular part of the house that has thedoor hinges.