How do you measure corner radius?

Measuring corner radius involves determining the distance from the inside corner of a frame to the point where the rounded edge or glass touches the frame. This technique is primarily used when dealing with rounded corners in materials like glass and framing. Here's a breakdown:

Understanding Corner Radius

Corner radius refers to the size of a rounded corner, and is crucial in various applications from construction to design. Knowing how to accurately measure it is essential for precise fabrication, replacements, and design.

Measuring Methods

The reference provided illustrates a direct measurement method. This method is practical when you have an existing frame and rounded material, like glass, already in place.

Direct Measurement Method

This involves using a framing square to assess the radius of a rounded corner.

• Positioning the Framing Square: Place the inside corner of the framing square at the inside corner of the frame, where the rounded section starts.
• Reading the Radius: The radius is the distance from this inside corner of the framing square to the point where the glass or the rounded edge touches the edge of the framing. This is illustrated well in the YouTube video from Dulles Glass, where they demonstrate this technique on a corner glass pane.

Practical Insights

• Accuracy: This direct method offers a good estimate. Slight variations may occur if the corner isn’t perfectly round.
• Tools: A standard framing square is sufficient for most common measurements.

Example Scenario

Let's say you need to replace a rounded glass pane in a window.

1. Place the inside corner of a framing square against the corner of the window frame.
2. Observe the point where the glass curve meets the frame.
3. Measure the distance from the corner of the framing square to the point of contact. That measurement is the corner radius.

Summary

In essence, measuring corner radius, as shown in the reference, involves placing a framing square's corner at the inside corner of the frame and measuring the distance to where the rounded material meets the framing.