Which type and number of hinges are typically placed on a 1-3/4 exterior door?

For a 1-3/4 inch exterior door, the standard practice is to use three 4 x 4 butt hinges. This configuration provides optimal support and stability for the door, which is essential given its weight and the stress it experiences during operation. The larger size of the hinges (4 x 4 inches) helps distribute the weight of the door more effectively, reducing the risk of sagging over time and ensuring a smoother operation.

Using three hinges rather than two enhances the door's structural integrity, particularly important for exterior doors that face varying weather conditions and usage. The combination of using three hinges and the 4 x 4 size aligns with common building code requirements for doors of this size, ensuring proper installation and long-term durability.