1. Lock Case Size

Standard: 2-3/4 inch (70mm) backset

Alternative: 2-3/8 inch (60mm) backset

👉 Backset refers to the distance from the door edge to the center of the lock hole.

2. Door Thickness Requirement

Standard door thickness: 1-3/8 inches (35mm) ~ 1-3/4 inches (45mm)

Heavy-Duty Locks: 2 inches (50mm) or above (special order required)

3. Door lock bore size

Lockset bore hole: 2-1/8 inches (54mm)

Latch bore hole: 1 inch (25mm)

👉 These sizes are suitable for most US standard door locks, including smart locks, mechanical locks, handle locks, and electronic locks.

4. Latch & Strike Plate Size

Latch Faceplate: 1" x 2-1/4" (25mm x 57mm)

Strike Plate: 1-1/4" x 2-3/4" (32mm x 70mm)

Since there are many sizes and shapes, please provide the relevant size and shape.