Hinge corner measurement primarily focuses on determining the radius of the curved corner. This is crucial for selecting replacement hinges that fit perfectly. There are two common methods:
Using Coins for Quick Estimation
A quick and easy method uses readily available coins:
- Dime: A dime fits snugly into a hinge corner with a ¼" radius.
- Quarter: A quarter fits a hinge corner with a 5/8" radius.
Simply line up the coin against the hinge corner to estimate the radius. This method provides a reasonable approximation for common hinge sizes.
Precise Measurement with a Ruler
For a more precise measurement:
- Identify the curve: Locate the curved portion of the hinge corner.
- Measure the radius: Using a ruler or calipers, measure from the center point of the curve to the edge of the curve. This distance represents the radius.
This method requires more tools but offers greater accuracy. You can also measure the distance from the beginning of the curve to where the corner would be if it were a square corner, as described in some sources. This provides another way to determine a hinge's 1/4" or 5/8" radius.
Remember that hinges are also specified by other dimensions such as gauge (thickness) and width when open, so always ensure you measure those as well when replacing hinges.
