What is the minimum number of screws required in exterior door hinges that penetrate wood framing?

The minimum number of screws required in exterior door hinges that penetrate wood framing is one. This single screw is essential to ensure that the hinges are properly secured to the door frame, providing adequate strength and stability to support the weight of the door.

One screw facilitates the installation while still allowing for sufficient pivoting movement of the door on the hinge. However, it is good practice to use more than one screw per hinge to enhance the overall strength and security of the door assembly, especially given that exterior doors are subject to various forces, including wind and frequent use. Deploying additional screws ensures better anchoring, thereby reducing the risk of hinge failure over time, but a minimum of one screw is required by the underlying building standards to ensure a baseline of safety and functionality.

Understanding this minimum requirement is important for compliance with building codes and regulations, which aim to guarantee that exterior doors are safe and secure while being installed through proper methods.