| Main Door Knob Sizes Square | Hole Center | End to End |
| Standard 1 | 75 mm | 4 X 4″ |
| Standard 2 | 100 mm | 5 X 5″ |
| Main Door Knob Sizes Round | Hole Center | Diameter |
| Standard 1 | 75 mm | 4″ |
| Standard 2 | 100 mm | 5″ |
The above sizes are standard. We can customise the size as per your requirement.
