What is the correct size for a door hinge used with a 1 3/8" interior door?

When determining the correct size for a door hinge to be used with a 1 3/8" interior door, selecting a hinge that provides adequate support and stability is essential. The commonly accepted size for hinges on a standard 1 3/8" thick interior door is 3 1/2" x 3 1/2". This size is designed to accommodate the weight and usage of standard interior doors, ensuring they function properly without undue stress or wear.

Using hinges of this size helps distribute the door's weight adequately and allows for smooth operation. The 3 1/2" dimension is particularly standard for many residential applications, making it a go-to choice for interior doors of this thickness.

In contrast, hinges that are vastly smaller or larger than what's recommended may not provide the necessary structural integrity. For instance, a hinge measuring 3" x 3" might not adequately handle the door's weight and could lead to sagging or other operational issues over time. Similarly, larger options like 4" x 4" are more suitable for heavier or exterior doors, while the size of 3 1/4" x 3 1/4" does not conform to common standards for this specific door